AUGUST 2023

PERFORMANCE PARTS forMILWAUKEE-EIGHT ENGINES®

DIAMONDBACK 2-1
Exhaustfor 2017–2022 M8 touring models

S&S was building Performance Baggers long before it was called that and our focus has always
been on making big power! The Diamondback 2-1 Exhaust System is a perfect example of ourcommitment to true performance. Beginning with a stepped header for maximum flow and amerged collector specifically engineered to prevent exhaust gas reversion, this system wraps up with a 4" fullstainless muffler that ends before the rear axle. Diamondback is not for your Daddy’s bagger, but purpose built
to make big power and sound, excellent cornering clearance and just the right look. Clearanced for tall shocks
and available in brushed stainless or Guardian Black.
CARB EO K-010-20

Features & Benefits:• 2-1 full stainless system (with shields!)• Oversize header primary tubes for optimum flow
and performance• Just enough length to make big power on your M8• Four bungs for easy O2 sensor installation andair/fuel monitoring• Computer aided design & precision bending for
improved ground clearance• Available in Brushed Stainless Steel or super durable
Guardian Black Finish• 50 State legal fitment available! CARB EO# K-010-26• Made in USA!

2

DIAMONDBACK 2-1 FOR 2017–2022 M8 FL MODELS — 50 STATE
FinishPart #MSRP

Stainless Steel

550-0999A$1,859.95

Black

550-1027A$1,859.95

Exempt from emissions tampering regulations under CARB EO# K-010-26

DIAMONDBACK 2-1 FOR 2017–2022 M8 FL MODELS — RACE ONLY
Stainless Steel

550-1000$1,099.95

Black

550-1028$1,132.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR
VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTIONCONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACTMilwaukee-Eight ®

GNX SLIP-ONS
for 2017–2022 M8 touring models

FinishPart #

MSRP

Black

550-0990$599.95

Chrome550-0991$652.95

ExhaustExhaustFeatures & Benefits:• 4.5" slip-on with premium fit, finish, sound, and power!
• Show quality chrome or Guardian Black• Guardian Black is exact match to OEM header• New, unique louvered baffle delivers a rowdier tone
• Clears up to 13.5" shock lengths• Removable dB reducer• Made in USA!

4.5"

*Qualified manufacturer declared U.S. 50-State legal emissions replacement part on all
MY 2017-2022 FL Touring models
NOTE: Does not fit trike models
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Not recommended for Tri Glide® or otherthree wheel models including conversions
due to ground clearance.

Removable dB reducer

3

Exhaust

Mk45 SLIP-ONS
Fitment:• 2017–2022 M8 touring models
Does not fit trike models

Features & Benefits:• 4.5" design — with stainless steel baffle & RaceTEX cartridge packing• Available in show quality chrome or Guardian Black finish• Produces a deep bass rumble throughout the RPM range• Choose Cutlass, Thruster, Tracer end cap designs inchrome or Tuxedo Black• Removable dB reducer• Made in USA!

NEW 550-1011

NEW 550-1010

550-0665

550-0664

550-0669

550-0668

550-0666

550-0670

Not recommended for Tri Glide® or other three wheel
models including conversions due to ground clearance.
MK45 4.5" SLIP-ONS
Muffler Body Finish

ChromeBlack

End Cap Finish & Style

Part #MSRP

NEW Black Cutlass550-1011$775.95

Chrome Thruster

550-0665$782.95

Black Thruster

550-0664$775.95

Chrome Tracer

550-0669$782.95

Highlight Machined Tracer 550-0668$775.95

NEW Black Cutlass550-1010$799.95

Black Thruster

550-0666$839.95

Highlight Machined Tracer 550-0670$839.95*Qualified manufacturer declared U.S. 50-State legal emissions replacement parton all MY 2017-2022 FL Touring models
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

4Removable dB reducer

Milwaukee-Eight ®

EL DORADO EXHAUST SYSTEM
Mk45 MUFFLER/HEADER PACKAGE

ExhaustFeatures & Benefits:• Improved power & torque for greater rideability• Produces a deep bass rumble throughout the RPM range• Available in show quality chrome or Guardian Black• 4.5" mufflers with billet end caps
• Tuxedo Black Thruster, Highlight Machined Tuxedo Black
Tracer, and Chrome Tracer tip options• Includes adapters that allow use of wide band or
stock O2 sensors• Stainless steel header construction• High flow cats increase exhaust flow for optimum torque• Relocation of cats to mufflers reduces rider heat
• Made in the USA!

Cat in muffler
away from riders
Stainless Steel Baffle

High-Flow Cat
RaceTEX
Cartridge Packing
End Cap

CARB EO K-010-15

EL DORADO EXHAUST SYSTEM FOR 2017–'22 TOURING MODELS — STREET LEGAL PERFORMANCE CAT
FinishEnd Cap
Part #
MSRP
ChromeBlack Thruster

550-0699C$1,853.95

BlackBlack Thruster

550-0700C$1,709.95

ChromeHighlight Machined Tracer

550-0701C$1,889.95

BlackHighlight Machined Tracer

550-0702C$1,853.95

ChromeChrome Tracer

550-0851A$1,889.95*NOTE: Does not fit trike models
Exempt from emissions tampering regulations under CARB EO# K-010-55 for all 2017-2022 FL touring models
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Black w/Highlight
Machined Tracer

Black w/Thruster

Chrome w/Thruster

Chrome w/Highlight
Machined Tracer

Chrome w/
Chrome Tracer

Not recommended for Tri Glide® or other three wheel models
including conversions due to ground clearance.
5

GRAND NATIONAL SLIP-ONS®

Exhaust4" touring mufflers

Fitment:• 2017–2021 touring models• 2009–2021 trike models
Features & Benefits:• Show quality chrome or Guardian Black finish• Aggressive sound and excellent horsepower• Race inspired Grand National end cap• High flow baffle design• Removable dB reducer• Excellent choice for trike models (See chart)• Made in USA!

GRAND NATIONAL® SLIP-ONS — 4" MUFFLERS FOR 2017–2021 TOURING M8 ENGINES*
FinishPart #
ChromeBlack550-0693
550-0694

MSRP$576.95$607.95

GRAND NATIONAL® SLIP-ONS — 4" MUFFLERS TOURING MUFFLERS FOR 2017–2021 TRIKE MODELS††
Chrome$576.95
550-0689Black

550-0690$607.95*Qualified manufacturer declared U.S. 50-State legal emissions replacement part on all MY 2017-2022 FL Touring models††
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. Not legal for sale or use on EPA pollution controlled motorcycles originally equipped with mufflers containing
catalyst.*Qualified Manufacturer Declared Emissions Replacement Part on 2017 to 2020 Touring Trike Models Only.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Removable dB reducer
6

Milwaukee-Eight ®

SLASH CUT SLIP-ONS
4” touring mufflers

SLASH CUT SLIP-ONS — 4" TOURING MUFFLERS FOR 2017–2021 TOURING M8 ENGINES*
FinishPart #
ChromeBlack550-0695
550-0696

SLASH CUT SLIP-ONS — 4" TOURING MUFFLERS FOR 2017–2021 TRIKE MODELS††
Chrome550-0691Black

550-0692

ExhaustFitment:• 2017–2021 touring models• 2009–2021 trike models
Features & Benefits:• Classic slash cut styling• Aggressive sound• Available in show chrome orGuardian Black finish• Stripped down styling• Economical price• Removable dB reducer included• Excellent choice for trike models (See chart)• Made in USA!

MSRP
$525.95$560.95$525.95$560.95*Qualified manufacturer declared U.S. 50-State legal emissions replacement part on all MY 2017-2022 FL Touring models††
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. Not legal for sale or use on EPA pollution controlled motorcycles originally equipped with mufflers containing
catalyst.*Qualified Manufacturer Declared Emissions Replacement Part on 2017 to 2020 Touring Trike Models Only.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Removable dB reducer
7

SIDEWINDER 2-1 EXHAUSTExhaust®

Fitment• 2017–2022 M8 FL models
Features & Benefits• 2-1 styling for high-performance baggers• Stainless steel stepped header• Increased power and torque• Available in show chrome or Guardian Black finish• Highlight Machined aluminum end cap• Includes adapters that allow use of wide band or
stock O2 sensors• Deep 2-1 performance exhaust note
• Removable dB reducer• Made in USA!

See next page for Left Side Shadow Pipe
Not recommended for Tri Glide® or other three wheel models including conversions
due to ground clearance.
SIDEWINDER 2-1 EXHAUST FOR 2017–’21 M8 TOURING MODELS — STREET LEGAL† PERFORMANCE CAT
FinishPart #
MSRP
ChromeBlack550-0758D
550-0759D

SIDEWINDER 2-1 EXHAUST FOR 2017–2022 M8 TOURING MODELS — RACE ONLY††
Chrome550-0728Black

550-0729$1,673.95$1,627.95$1,223.95$1,199.95

Exempt from emissions tampering regulations under CARB EO# K-010-21 for all 2017-2021 FL Touring Models††
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER
THE CLEAN AIR ACTWARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov†

Removable dB reducer— race only version
8

CARB EO K-010-14

Milwaukee-Eight ®

SHADOW PIPE

for 2017–2022 touring models with S&S Sidewinder 2-1 exhaust®

ExhaustFeatures & Benefits:• Show chrome and Guardian Black finish• Shadow muffler fills left side cutout in extended bags when running Sidewinder 2-1• Matching end caps for left and right side
(not available on any of our slip-on or El Dorado products)• 4.5” design• All hardware included• Made in USA!

Not recommended for Tri Glide® or other three wheel models
including conversions due to ground clearance.

2017–2022 TOURING MODELS EQUIPPED WITH S&S® SIDEWINDER® 2-1 EXHAUSTMSRPChrome550-0829$427.95Black

550-0831$427.95

If you have…

…you’ll need
BIKE

FINISH

Chrome2017–2021
touring model
Black

SIDEWINDER PART #550-0728
550-0758D
550-0729
550-0759DSHADOW PIPE PART #550-0829

550-0831

9

Exhaust

SUPERSTREET 2-1

CARB EO K-010-13

Fitment:• 2018–2022 HD® Street Bob ®, Low Rider®, Softail Slim®, Fat Bob®,
Deluxe, Sport Glide®, & Heritage® models• 2018–2022 HD® Softail ® Fat Boy® , Breakout ® , & FXDR ® models
Features & Benefits:• Classic 2-1 styling with world famous S&S performance!
• Fits floorboard and forward controls and fits mid mounts with
S&S brake pedal kit (560-0259A)• Saddlebag support compatible! Works with OEM and similar size
saddlebags (like Heritage® or Sport Glide® models)• Full heat shields on both front and rear headers• Stainless steel stepped header construction• Available in show quality chrome, Guardian Black finish
or Stainless Steel Muffler & Shields• Oxygen sensor ports allow use of wide band or stock O2 sensors• Passenger peg bracket included

Mid mounts require
brake pedal kit(part # 560-0259A
msrp $193.95)(Fat Boy, FXDR, & Breakout version. All others use OE Heritage location)• Made in the USA!
SUPERSTREET 2-1 — STREET LEGAL* PERFORMANCE CAT
Fitment
2018–2022 HD® Street Bob®, Low Rider®, Softail Slim®, Fat Bob®,
Deluxe, Sport Glide® & Heritage® models®

2018–2022 HD® Softail® Fat Boy®, Breakout® & FXDR® models

FinishPart #

Stainless Steel with Black end cap

550-0996B $1,669.95

Black with Black end cap

550-0789B $1,669.95

Chrome with Black end cap

550-0791B $1,669.95

Black with Black end cap

550-0846B $1,669.95

Chrome with Black end cap

550-0847B $1,669.95

Black with Black end cap

550-0788$1,099.95

MSRP

SUPERSTREET 2-1 — RACE ONLY†
2018–2022 HD Street Bob, Low Rider, Softail Slim, Fat Bob,
Deluxe, Sport Glide & Heritage models
2018–2022 HD Softail Fat Boy, Breakout & FXDR models

Chrome with Black end cap

550-0790$1,143.95

Black with Black end cap

550-0857$1,091.95

Chrome with Black end cap

550-0858$1,225.95*Exempt from emissions tampering regulations under CARB EO# K-010-22 for all 2018-2022 Softail models with 107” or 114” engine†
FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.
NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

ChromeBlack

10

Milwaukee-Eight ®

Stainless

ExhaustS&S SuperStreet 2:1 CARB Legal Exhaust vs Short "Race Only" 2:1

PROVEN PERFORMANCE
120
110
100
90
80
70
60
50
40
30
20
2000

2500

3000

3500

4000
RPM

4500

5000

5500

6000

SuperStreet 2:1 50 State compliant exhaust with S&S high flow catalyst, Stealth Air Cleaner, mapped

Performance exhaust and street legal used to be mutually exclusive features, forcing a rider to choose between
making power and making sure factory warranties stayed intact. Not anymore! Welcome to the new worldorder of high performance that marries a real deal v-twin exhaust note with legit horsepower gains.
Orange is a stock 114" Softail (75 hp & 99 torque)
Green is the same bike with one of the stubby and empty systems on the market (82 hp & 104 torque)
Blue is the S&S SuperStreet (82 hp & 109 torque). This 2-1 system is not only Street Legal, but
produces more torque in the RPM zone that you ride in!
Stock 114" Softail® Model

Other guys short stainless steel 2-1 “Race Only,” with Stealth Air Cleaner

Max Power =Max Torque =Max Power
Max Torque75.15
99.61= 82.86= 104.44

S&S SuperStreet 2-1 Street Legal with S&S high flow catalyst & Stealth Air Cleaner
Max Power = 82.36
Max Torque = 109.44
11

GRAND NATIONAL 2-2®

for 2018–2021 HD Street Bob , Low Rider , Slim , Fat Bob , & Deluxe models

Exhaust

®

®

®

®

®

Features & Benefits:• 2-2 Free-flow design equals solid HP gains• Hidden crossover provides performance benefits of 2-1• Full heat shields on both front and rear headers• Stainless steel stepped header construction• Available in chrome or ceramic black finish• Oxygen sensor ports allow use of wide band or stock O2 sensors.
• Removable dB reducer included (Race only version)• Fits floorboard and forward controls and fits mid mounts
with S&S brake pedal kit (part #560-0259A for $193.95)• Right side passenger peg relocation bracket(part #550-0801 for $81.95)• Made in USA!

GRAND NATIONAL® 2-2 FOR 2018–’19 HD® STREET BOB®, LOW RIDER, SLIM, FAT BOB, & DELUXE MODELS — STREET LEGAL† PERFORMANCE CAT$1,292.95
Chrome550-0816A

CARB EO K-010-7

GRAND NATIONAL 2-2 FOR 2018–2021 HD STREET BOB, LOW RIDER, SLIM, FAT BOB, & DELUXE MODELS — RACE ONLY††$1,069.95
Chrome550-0761Black†

550-0760$1,091.95

Exempt from emissions tampering regulations under CARB EO# K-010-7 for all 2018-2019 Softail Models
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY
FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACTWARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov††

Passenger Peg
Relocation Bracket

12

Mid mounts require brake pedal kit(part # 560-0259A/ msrp $193.95)

GRAND NATIONAL SLIP-ONS

Milwaukee-Eight ®

®

for 2018–2021 HD Fat Bob models®

®

ExhaustFeatures & Benefits:• Up to 12% more horsepower and 6% more torque(when used with Stealth Air Cleaner Kit)

• Race inspired design• Guardian Black finish• Deep performance rumble replaces stock whisper tone
• No mapping required• Removable dB reducer• Made in USA!

GRAND NATIONAL® SLIP-ONS FOR 2018–2021 HD® FAT BOB® MODELS
FinishPart #

MSRP

Black

550-0734$524.95*Qualified manufacturer declared U.S. 50-State legal emissions replacement part on all MY 2018-2021 Fat Bob models.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Removable dB reducer

13

GRAND NATIONAL SLIP-ONS
Exhaust®

Fitment:• Fits 2018–2022 HD® Softail ® Street Bob ® , Low Rider® , Slim ® , Fat Boy® , Breakout ® , Heritage ® , & Classic® models(except Fat Bob ® , Sport Glide ® , & FXDR models)Features & Benefits:• Show quality chrome or Guardian Black• Guardian Black is exact match to OEM heat shields• All hardware and gaskets included• Deep performance rumble replaces stock whisper tone
• Removable dB reducer included (Race only version)• Made in USA!

GRAND NATIONAL® SLIP-ONS FOR 2018–2022 M8 HD® SOFTAIL® MODELS — STREET LEGAL† PERFORMANCE CAT
Fitment
Muffler Body Finish Part #M8 HD Softail models: Street Bob®, Low Rider®, Slim®, Fat Boy® & Breakout® models Black
550-0754B
M8 HD Softail models: Street Bob, Low Rider, Slim, Fat Boy & Breakout® models
Chrome550-0755B
M8 HD Heritage Softail Classic & Softail Deluxe models
Chrome550-0757B

MSRP$1,235.95$1,235.95$1,235.95

GRAND NATIONAL® SLIP-ONS FOR 2018–2022 M8 HD® SOFTAIL® MODELS — RACE ONLY††
M8 HD Softail models: Street Bob®, Low Rider®, Slim®, Fat Boy® & Breakout® models Black$499.95

M8 HD Softail models: Street Bob, Low Rider, Slim, Fat Boy & Breakout models

ChromeM8 HD Heritage Softail Classic & Softail Deluxe models

Chrome550-0737
550-0738
550-0740$504.95$504.95

Exempt from emissions tampering regulations under CARB EO# K-010-23 for all 2018-2022 Breakout, Fat Boy, Low Rider, Slim, Street Bob, Deluxe, and Heritage Classic Softail Models with the 107” or 114”
Engine††
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER
THE CLEAN AIR ACTWARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov†

CARB EO K-010-16

14

Milwaukee-Eight ®

SLASH CUT SLIP-ONS(except Fat Bob ® , Sport Glide ® , & FXDR models)Features & Benefits:• Classic Slash Cut styling• Show quality chrome or Guardian Black• Guardian Black is exact match to OEM heat shields• All hardware and gaskets included• Deep performance rumble replaces stock whisper tone
• Removable dB reducer included (Race only version)• Made in USA!
SLASH CUT SLIP-ONS FOR 2018–2022 HD® SOFTAIL® MODELS — STREET LEGAL† PERFORMANCE CAT
Fitment
Muffler Body Finish Part #M8 HD Softail models: Street Bob®, Low Rider®, Slim®, Fat Boy®, & Breakout® models Black
550-0752B
M8 HD Softail models: Street Bob, Low Rider, Slim, Fat Boy, & Breakout models

ChromeM8 HD Heritage Softail Classic & Softail Deluxe models

ChromeSLASH CUT SLIP-ONS FOR 2018–2022 M8 SOFTAIL® MODELS — RACE ONLY††
M8 HD Softail models: Street Bob®, Low Rider®, Slim®, Fat Boy®, & Breakout® models

Black

M8 HD Softail models: Street Bob, Low Rider, Slim, Fat Boy, & Breakout models

ChromeM8 HD Heritage Softail Classic & Softail Deluxe models

Chrome550-0753B
550-0756B
550-0735
550-0736
550-0739

ExhaustFitment:• Fits 2018–2022 HD® Softail ® Street Bob ® , Low Rider® , Slim ® , Fat Boy® , Breakout ® , Heritage ® , & Classic® models

MSRP$1,205.95$1,205.95$1,132.95$432.95$432.95$440.95

E xempt from emissions tampering regulations under CARB EO# K-010-23 for all 2018-2022 Breakout, Fat Boy, Low Rider, Slim, Street Bob, Deluxe, and Heritage Classic Softail Models with the 107” or 114” Engine††
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE
CLEAN AIR ACTWARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov†

CARB EO K-010-16

15

Exhaust

POWER TUNE DUAL HEADERS

16

Fitment:• Replacement for the El Dorado exhaust system for touring models
Features & Benefits:• Adds up to 8 horsepower over stock header pipes• Independent dual look with hidden crossover• Exclusive design moves the rear cylinder header away from the passenger to reduce radiated heat
• Full chrome or ultra durable Guardian Black heat shielding with 220º coverage• Oxygen sensor bungs**• Durable 16 gauge stainless steel construction• Spherical inlet design for improved sealing and exhaust gasket durability• Requires symmetrical inlet (1995–2016 style) mufflers• Exhaust port gaskets included• All hardware included• Made in USA!

Milwaukee-Eight ®

Chrome550-0704$679.95Black

550-0705$744.95

ExhaustPOWER TUNE® DUAL HEADERS FOR 2017–2022 TOURING MODELS
WITH SYMMETRICAL INLET (1995–2016 STYLE) MUFFLERS

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE
NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACTWARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

17

EUROPEAN SPEC EC SLIP-ON MUFFLERS
for 2018–2020 HD Softail models (for Europe)

Exhaust®

®

Features & Benefits:• EC approved with S&S performance and style• Race-inspired Grand National® end cap design or theclassic slash cut design complements any bike style• Show chrome or ceramic black finish• 82mm can with perforated stainless steel baffle and
RaceTex cartridge packing• All hardware and gaskets included• Made in USA

GRAND NATIONAL® EC SLIP-ONA MUFFLERS FOR 2018–2020 M8 HD® SOFTAIL® MODELS
M8 Softail® Street Bob®, Low Rider®, Slim®, Fat Boy® & Breakout® models
Black

550-0824$1,239.95

M8 Softail Street Bob, Low Rider, Slim, Fat Boy & Breakout models

Chrome550-0825$1,239.95

M8 Softail® Heritage Classic & Deluxe® models

Chrome550-0826$1,239.95

SLASH CUT EC SLIP-ON MUFFLERS FOR 2018–2020 M8 HD® SOFTAIL® MODELS
M8 Softail® Street Bob®, Low Rider®, Slim®, Fat Boy® & Breakout® models
Black

550-0821$1,239.95

M8 Softail® Street Bob, Low Rider, Slim, Fat Boy & Breakout models

Chrome550-0822$1,239.95

M8 Softail® Heritage®/Deluxe® models

Chrome550-0823$1,239.95

EU Type-Approval: e9*134/2014*2018/295H*11028*00

EU Type-Approval: e9*134/2014*2018/295H*11027*00

EUROPEAN SPEC EC GRAND NATIONAL SLIP-ON
MUFFLERS®

for 2018–2021 M8 HD Fat Bob Softail models (for Europe)®

®

®

Features & Benefits:• EC approved with S&S performance & style• Race-inspired Grand National® end cap design• High temperature ceramic black finish• 100mm can with perforated stainless steel baffle& RaceTex cartridge packing• dB reducer included• All hardware and gaskets included
GRAND NATIONAL® EC 100MM SLIP-ON FOR 2018–2020 HD® SOFTAIL® FAT BOB® MODELS
FinishPart #
MSRP

Black

550-0827

EU Type-Approval: e9*134/2014*2018/295G*11029*00 for 2018-2020 Fat Bob

18$579.95

Milwaukee-Eight ®

EUROPEAN SPEC EC Mk45 SLIP-ON MUFFLERS
for 2017–2021 M8 models (for Europe)

ExhaustFeatures & Benefits:• EC approved with S&S performance & style• Bold 4.5" design — with stainless steel baffle &RaceTEX cartridge packing• Choose Cutlass, Thruster or Tracer end cap designs
in chrome or Tuxedo Black• Performance 2.5" stainless steel perforated baffle• Made in USA!
Mk45 EC 4.5" SLIP-ON MUFFLERS FOR 2017–2020 TOURING MODELS
Muffler Body Finish

End cap Finish & Style

Part #MSRP

NEW Black Cutlass550-1009
550-0861
550-0860
550-0864
550-0863
550-1008
550-0862
550-0865$1,019.95

Chrome Thruster
ChromeBlack Thruster
Chrome Tracer
Highlight Machined Tracer

NEW Black Cutlass
Black

Black Thruster
Highlight Machined Tracer$999.95$999.95$999.95$999.95$1,019.95$999.95$999.95

EU Compliant per 11032 G
EC-Type Approval for non-original motorcycle noise abatement device

Chrome w/Cutlass
Not recommended for Tri Glide® or other three wheel models including conversions due to ground clearance.

Chromew/Chrome Thruster

Chromew/Chrome Tracer

Chromew/Machined Tracer

Black
w/Black Thruster

Black
w/Machined Tracer
19

Intake20

AIR CLEANER KITS & COVERSTUNED INDUCTION AIR CLEANER KITS

Milwaukee-Eight ®

for 2017–2021 M8 models

Air flow is everything in a performance engine and naturally, it begins at the air filter. Factory units are
downright boxy and can be very restrictive. The S&S Cycle Tuned Induction Air Cleaner uses two laser cut andhighly engineered tubes merged into a single collector and fed by a pair of high flow air filters placed directly inunobstructed air stream. The end result is maximum performance for your engine and a stylish package.

TUNED INDUCTION AIR CLEANER KITFINISHPART #

Intake• Bolt-on performance—over twice the filtering area of stock intake system• Increases horsepower and torque across the rpm range using air column inertia
and timed gas dynamic pressure waves• Smooth intake tract of carefully selected tuned lengths increases performance• High flow washable and reusable cotton media filter elements• Tig welded• Available in chrome, gloss black powder coat, orbrushed stainless steel finish• Water resistant rain socks also available (part # 106-0248)

MSRP

Gloss Black

170-0565A$463.95

Chrome170-0566A$472.95

Stainless Steel

170-0565A$463.95

Exempt from emissions tampering regulations under CARB EO# D-355-37

The Tuned Induction System will not fit on motorcycles equippedwith fairing lower glove boxes or Twin-Cooled™ models

21AIR STINGER™ STEALTH AIR CLEANER KITS
for 2017–2021 M8 models
The Air Stinger takes the existing high flow Stealth air cleaner and replaces the air smoothing
stinger with a similarly shaped filter element. More filter surface equals a 55% gain over afactory filter in an M8.

IntakeAlso available with the classic Mini Teardrop cover in black or chrome or as a replacement cover plate to
update your existing Stealth system. The Air Stinger filter element is washable just like the Stealth filters anddesigned to last for years.
TEARDROP FINISHPART #

MSRP

Gloss Black

170-0718$399.95

Chrome170-0717$399.95

WITH S&S RING

PART #

Brushed Ring

170-0714$229.95

AIR STINGER™ FILTER ONLY

170-0723$69.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTIONCONTROLLED MOTOR VEHICLE*Qualified Manufacturer Declared 49-State Federal Emissions Compliant Partt
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

22

Milwaukee-Eight ®

STEALTH AIR CLEANER KITS

EO #D-355-30

See previous page for Air Stinger Kits
Fitment:• 2017–2021 HD® models with M8 engine• Works with Screamin’ Eagle ® 64mm throttle body
Features & Benefits:• Included actuator cover, hides TBW servo motor
for a clean, attractive installation• Backplate made from high-strength advanced
synthetic polymer — reduces heat transfer to intake air• Use with your stock HD M8 engine air cleaner cover(Adapter required — see below)

Intake• High flow (1" taller) filter kit available (P/N 170-0127*)• Cooler, denser air allows for more efficientcylinder fill & better performance
Air 1
STEALTH AIR CLEANER KITS (Kits include Stealth Kit 170-0354C— Exempt from emissions tampering regulations under CARB EO# D-355-30 for all fuel injected models)
TributeTeardrop
Carbon Fiber
Mini

Airstream

ChromeGloss Black

ChromeGloss Black

Black

ChromeGloss Black

ChromeGloss Black

170-0595A

170-0598A

170-0524B

170-0525B

170-0498B

170-0435C

170-0436C

170-0390C

170-0397C$377.95$377.95$377.95$377.95$550.95$377.95$377.95$377.95$391.95

Tri-Spoke

Torker

Air 1

170-0392C

170-0393C

170-0394C$387.95$377.95$377.95

WARNING: Cancer and Reproductive Harm – www.
P65Warnings.ca.gov

See ALL our cover options next page

Tribute in Chrome

KIT ONLY — NO COVER
Stealth Air Cleaner Kit
for Stock M8 & 64mm Throttle Body
Adapter for Stock M8 Air Cleaner CoverMini in Gloss Black

MSRP

170-0354C $205.95
170-0352$71.95The S&S Stealth air cleaner backplate is made fromthe same high-strength advanced synthetic polymers
used in high performance automotive intake
manifolds and high-end handgun bodies! It offers
superior mechanical properties, thermal stability, andchemical resistance. Designed to reduce heat transfer
to the intake air for more efficient induction.
23

STEALTH AIR CLEANER COVERS (covers only)
STEALTH COVERSIntakeTributeCarbon Fiber

Teardrop—Slasher

Mini

ChromeGloss Black

Black

ChromeGloss Black

ChromeGloss Black

ChromeGloss Black

170-0592

170-0593

170-0501

170-0530

170-0531

170-0532

170-0533

170-0367

170-0366$203.95$203.95$356.95$205.95$203.95$216.95$214.95$203.95$203.95

Tri-Spoke

TorkerAir 1

Gloss Black w/Highlights

Gloss Black w/Highlights

Gloss Black w/Highlights

ChromeGloss Black

124

170-0210

170-0206

170-0214

170-0118

170-0396

170-0321$193.95$193.95$193.95$193.95$195.95$203.95

Airstream

Displacement

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Tribute in Chrome

Tribute in Gloss Black

Carbon Fiber

Teardrop in Chrome

Teardrop in Gloss Black

Teardrop Slasher in Chrome

Mini in Chrome

Mini in Gloss Black

Tri-Spoke

Air 1
24

Teardrop

Airstream in Gloss Black

Airstream in Chrome

Teardrop Slasher in Gloss Black

Torker124

Milwaukee-Eight ®

HIGH FLOW AIR FILTER KITS

Fitment:• S&S Stealth Air Cleaners
Features & Benefits:• Low restriction filter element comes pre-oiled for true plug and play installation• 1" wider filtration area provides up to 37% more airflow over standard S&S filters• Resulting band of exposed filter material imparts a high performance look
Kit Contents• Wide filter• Filter spacers

Part #

MSRP

170-0127*$91.95

1" Taller Filter Only

Stealth

170-0154$61.95

STANDARD REPLACEMENT AIR FILTERS
MSRP
Fitment
Part #SpacerClassic Teardrop & Stealth, 1" Taller

50-5009-S$19.95

Stealth(includes spacers)

170-0126

IntakeREPLACEMENTFILTERSHIGH FLOW AIR FILTERS
Description
Fitment
High Flow Air Filter Kit
Stealth, 1" Taller$61.95*NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOTLEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLEUNDER THE CLEAN AIR ACTMSRP

Teardrop170-0747$61.95Ring

170-0748$61.95

STEALTH PRE-FILTERS
Fitment
Part #

MSRP

Standard

170-0193$61.95

1" Tall

170-0197$61.95170-0747

170-0748

Fitment• S&S ® Air Stinger & Stealth Air Filters
Features & Benefits:• Water resistant• Prevents large debris from prematurely clogging filter• Washable nylon• Promotes longer filter life
• Reduces the risk of water entering air intake system

AIR STINGER PRE-FILTERS
Fitment
Part #

170-0197

PRE-FILTERS (rain socks)

EUROPEAN SPEC EC
STEALTH AIR CLEANER KITS

(for Europe)• 2018–2020 M8 Softail ® models (e9 11026G)• 2017–2020 M8 touring models
EC STEALTH AC KITS
2018–2020 M8 Softail models

170-0521$239.95

2017–2020 M8 touring models

170-0521$239.95

cover sold separately
cover sold separately

EU Type-Approval: e9*134/2014*2018/295G*11026*00

25

129", 132", & 136" BIG BORE KITS
Fitment:• 2017–2021 touring models• 2018–2021 Softail ® models
Features & Benefits:• Huge bore increase (4.320") means huge power increase• Works with stock crankcases• Original engine serial numbers are retained• Powder coat finish match factory finish, giving the bike a “sleeper” advantage• MLS (multi-layered steel) head gaskets• Retains stock engine height• Includes Cam Cover Badge• Must be used with our stroker flywheels to achieve 136" displacement (part #s 320-0605)
129, 132, & 136 KITS FOR 2017–2021 TOURING MODELS
Displacement
StrokeFinishPer formance Kits

129"
132"
136"

Part #

MSRP

4.375"

Wrinkle Black with Highlighted Fins

910-0843$1,544.95

4.375"

Wrinkle Black with Non-Highlighted Fins

910-0844$1,544.95

4.500"

Wrinkle Black with Highlighted Fins

910-0845$1,544.95

4.500

Wrinkle Black with Non-Highlighted Fins

910-0846$1,544.95

4.625"

Wrinkle Black with Highlighted Fins

910-0848$1,565.95

4.625"

Wrinkle Black with Non-Highlighted Fins

910-0849$1,550.95

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR
LICENSED FOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT.

S&S does not recommend compression ratios higher than 10:1 for Tri Glide ® or other three wheel models (including
conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine
damage may result.

26

Milwaukee-Eight ®

124" & 128" BIG BORE KITS
Fitment:• 2017–2021 touring models• 2018–2021 Softail ® models

S&S® 128” Power Pack on HD® Street Glide®

150
140
130

Features & Benefits:120• 107" to 124" Big Bore Kit
110• 114" to 128" Big Bore Kit
100• 114" & 117" CVO™ to 128" Big Bore Kit
90• 4.250" Bore80
• Forged Pistons70• 11:1 Compression Ratio
60• Wrinkle Black or Black Granite Finish• Available with or without Highlighted Fins 50• Bolt-on Kit — No Machining Required40• Includes Head, Base, & Exhauts Gaskets
30& Hardware

Stock 114

HP 81.07
TQ 111.71

20
2000

2500

3000

3500

S&S

HP 128.00
TQ 146.00

4000
RPM

4500

5000

5500

6000

STOCK
vsPackS&S
128"
128” Power
withstockKIT
throttle body, Stealth Air Cleaner kit, and 2:1 Exhauston a 2018 HD® Street Glide®— with a stock throttle body, Stealth Air Cleaner, &2-1 exhaust system

124"
128"

MSRP

Wrinkle Black with Non-Highlighted Fins

910-0681$1,561.95

Wrinkle Black with Highlighted Fins

910-0625$1,561.95

Wrinkle Black with Non-Highlighted Fins

910-0685$1,561.95

Wrinkle Black with Highlighted Fins

910-0684$1,561.95

Black Granite with Highlighted Fins

910-0733$1,559.95

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED,OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLEUNDER THE CLEAN AIR ACT.

S&S does not recommend
compression ratios higher
than 10:1 for Tri Glide ® orother three wheel models(including conversions)due to extra loads causedby the lugging nature ofthese bikes. Detonationand subsequent engine
damage may result.

Per formance Kits

124 & 128 BIG BORE KITS FOR 2017–2021 TOURING MODELS & 2018–2021 SOFTAIL® MODELS
Displacement
FinishPart #

27

131" CYLINDER & PISTON KIT• Huge displacement increase means huge power increase• Works with stock crankcases• Original engine serial numbers are retained• Powder coat finish match factory finish, giving bike a “sleeper” advantage• .045" MLS (multi-layered steel) head gaskets• Retains stock engine height• Includes 131" Cam Cover Badge• Must be used with our stroker flywheels to achieve 131" displacement (see page 34)
CYLINDER & PISTON KITS FOR 2017–2021 TOURING MODELS & 2018–2021 SOFTAIL® MODELS
Displacement
FinishPart #131"

MSRP

Wrinkle Black with Non-Highlighted Fins

910-0763$1,559.95

Wrinkle Black with Highlighted Fins

910-0762$1,559.95

Black Granite with Highlighted Fins

910-0764$1,559.95

See our 131"
flywheels on
page 34

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT131” S&S® Stroker Kit on HD® Street Glide®
150
140

Per formance Kits

130
120
110
100
90
80
70
60
50

Stock 114

40

HP 81.07
TQ 111.71

30
20
2000

2500

3000

3500

S&S 590 Cam

STOCK vs S&S 131" KIT

HP 146.62
TQ 145.45

4000
RPM

4500

on a 2018 HD® Street Glide®— with
CNC Heads, Big Bore Throttle Body, andHigh-flowStealth Air Cleaner
5000

590 cam with 131” Stroker Kit, CNC Heads, Big Bore Throttle body, &High-flow Stealth Air Cleaner Kit

28

5500

6000

Milwaukee-Eight ®

BIG BORE CYLINDER SETS
Fitment:• 2017–2021 touring models• 2018–2021 Softail ® models
Features & Benefits:• 4.250" Bore
• Wrinkle Black orBlack Granite Finish• Available with orwithout Highlighted Fins

CYLINDER SETS
Displacement Finish
124"
128"
131"

Part #

MSRP

Wrinkle Black with Non-Highlighted Fins

910-0683 $948.95

Wrinkle Black with Highlighted Fins

910-0682 929$948.95

Black Granite with Highlighted Fins

910-0739 $948.95

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIAONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A
HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR
VEHICLE UNDER THE CLEAN AIR ACT.

BIG BORE PISTON KITS

• Piston kits include set of pistons, rings, wristpins, and clips
4.250" BORE PISTON KIT FOR M8 MODELS
Deck Height

StrokeStandard

MSRP

+.010

MSRP

124"
4.3cc Dished1.143"

4.375"

920-0135$629.95

920-0141$629.95128"
7.3cc Dished1.0805"4.500"

920-0140$629.95

920-0142$617.95131"
10.3cc Dished1.0805"4.625"

920-0149$629.95

920-0148$629.95

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE
USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED
MOTOR VEHICLE UNDER THE CLEAN AIR ACT.

Per formance Kits

Displacement

REPLACEMENT PARTS FOR PISTONS
Piston Ring Set

2 Pack

940-0060$163.95

Piston +.010" Ring Set

2 Pack

940-0062$163.95

Wristpin Keeper

94-9278-S$10.95

Wristpin, .927” x 2.500"

940-0037$27.95GASKET KIT
Description

Thickness

Qty

Part #MSRP

Head gasket,
4.250" Bore,
Stock bolt pattern.030"

2 Pack

930-0140$101.95

Base gasket, Stock to
4.250" Bore,
Stock bolt pattern.014"

2 Pack

930-0139$61.95Gasket Kit, includes Head, Base, & Exhaust,
4.25" Bore

900-0955$164.95

Plug

500-0835$14.95500-0849$14.95910-0677$40.95

Cylinder Dowel Pin
HARDWARE KIT

4 Pack29

124" POWER PACKS
Tappet Cuffs:• Hard anodized black coating• Billet aluminum construction• Improve tappet stability in high lift &high rpm situations

107" to 124" Big Bore Kit:
• Available with or without fin highlighting• Bolt-on kit — No case machining required• 4.250" bore
• Forged pistons• 11:1 compression ratio

Per formance Kits

Oil Pump/Cam Plate:• Precision machined from billet aluminum• Independent scavenge sections for flywheel
cavity & cam chest• Debris screens in both scavenge pickups• Magnet in cam chest to help to stop debris fromentering oil pump
• 44% flow increase on supply side & 58% flow
increase on scavenge side
• Pressure relief valve is adjustable with unit
installed in engine• Kits now include updated oil pump withgroove for optional OEM oil seal
Pushrods:• Quickee pushrods• Chrome or gloss black pushrod tubes available
Tappets:• Hand assembled to exacting tolerances• Reduced valve train noise from start up
to shut down
• Close tolerances for low leak down rates• Fast pump up and superior high rpm performanceCam:• S&S 550 cam — Designed for big bore applications• Available in both gear drive & chain drive variations• Gear drive kits provide improved cam timing
accuracy• Gear drive kits include outer drive gears
Valve Springs:• High performance conical single wire spring• Includes top collars, keepers, &valve seals/bottom collars
Cam Chain Tensioner• Comes with Chain Drive Kits
• Precision Machined from Billet Aluminum• Thicker shoe for longer wear
• Direct chain oiling• Larger piston for more consistent pressure• Tighter tolerances improves stability

S&S® 124 Power Pack on HD® Limited
140
130
120

S&S does not recommend
compression ratios higher than
10:1 for Tri Glide ® or otherthree wheel models (including
conversions) due to extra loads
caused by the lugging natureof these bikes. Detonation andsubsequent engine damage may
result.

110
100
90
80
70
60
50

Stock

40

HP 75.00
TQ 103.00

30
20
2000

30

2500

3000

3500

S&S

HP 124.32
TQ 135.35

4000
RPM

4500

STOCK vs S&S

on a 2017 HD® Limited— with S&S 124" Power
Pack, Power Tune® Dual Headers, Mk45
Exhaust, and Stealth Air Cleaner Kit
5000

5500

6000

S&S 124 Power Pack, Power Tune® Dual Headers, Mk45 Exhaust, and Stealth Air Cleaner Kit

Milwaukee-Eight ®

Per formance Kits124" POWER PACKAGE KIT FOR 2017 TOURING MODELS & ALL 2018–2021 HD® MODELS WITH 107" ENGINE
Cooling System
FinishDrive

Pushrod Tubes

Part #MSRP

Oil

Wrinkle Black with Highlighted Fins

Chain

Chrome310-1052B$3,265.95

Oil

Wrinkle Black with Highlighted Fins

Gear

Chrome310-1053A$3,460.95

Oil

Wrinkle Black with Highlighted Fins

Chain

Black

310-1056B$3,265.95

Oil

Wrinkle Black with Highlighted Fins

Gear

Black

310-1058A$3,460.95

Oil

Wrinkle Black with Non-Highlighted Fins

Chain

Black

310-1057B$3,265.95

Oil

Wrinkle Black with Non-Highlighted Fins

Gear

Black

310-1059A$3,695.95

Water

Wrinkle Black with Highlighted Fins

Chain

Chrome310-1050B$3,265.95

Water

Wrinkle Black with Highlighted Fins

Gear

Chrome310-1051A$3,460.95

Water

Wrinkle Black with Highlighted Fins

Chain

Black

310-1054B$3,265.95

Water

Wrinkle Black with Highlighted Fins

Gear

Black

310-1055A$3,427.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR
VEHICLE UNDER THE CLEAN AIR ACT

31

128" POWER PACKS
for 2017–2021 M8 models with 4.500" stroke

Per formance Kits114" to 128" Big Bore Kit &114" & 117" CVO to 128" Big Bore Kit:
• Wrinkle black or black granite finish• Available with or without fin highlighting• Bolt-on kit — No case machining required• 4.250” Bore
• Forged pistons• 11:1 Compression ratio

Tappet Cuffs:• Hard anodized black coating• Billet aluminum construction• Improve tappet stability in high lift & high rpm
situations

Oil Pump/Cam Plate:• Precision machined from billet aluminum• Independent scavenge sections for flywheel cavity &cam chest• Debris screens in both scavenge pickups• Magnet in cam chest to help to stop debris fromentering oil pump
• Increased flow capacity on both feed & scavenge side
• Pressure relief valve is adjustable with unit installed inengine• Kits now include updated oil pump with groove
for optional OEM oil seal
Pushrods:• Quickee pushrods with chrome covers

Cam:• S&S 550 cam — Designed for big bore applications• Available in both gear drive & chain drive variations• Gear drive kits provide improved cam timing accuracy• Gear drive kits include outer drive gears
Valve Springs:• High performance conical single wire spring• Includes top collars, keepers, &valve seals/bottom collars
Cam Chain Tensioner• Comes with Chain Drive Kits
• Precision Machined from Billet Aluminum• Thicker shoe for longer wear
• Direct chain oiling• Larger piston for more consistent pressure• Tighter tolerances improves stability

Tappets:• Hand assembled to exacting tolerances• Reduced valve train noise from start up
to shut down
• Close tolerances for low leak down rates• Fast pump up and superior high rpm performance

S&S® 128” Power Pack on HD® Street Glide®
150
140
130

S&S does not recommend
compression ratios higher than
10:1 for Tri Glide ® or otherthree wheel models (including
conversions) due to extra loads
caused by the lugging natureof these bikes. Detonation andsubsequent engine damage
may result.

120
110
100
90
80
70
60
50

Stock 114

40

HP 81.07
TQ 111.71

30
20
2000

32

2500

3000

3500

S&S

HP 128.00
TQ 146.00

4000
RPM

4500

STOCK vs S&S

on a 2018 HD® Street Glide®— with S&S 128"
Power Pack, stock throttle body, Stealth Air
Cleaner and 2-1 Exhaust System
5000

5500

128” Power Pack with stock throttle body, Stealth Air Cleaner kit, and 2:1 Exhaust6000

Milwaukee-Eight ®

Per formance Kits

128" POWER PACKAGE KIT FOR 2017–2021 M8 MODELS WITH 114" ENGINE
Cooling System
FinishDrive

Part #

MSRP

Water

Wrinkle Black with Highlighted Fins

Chain

310-1101B$3,265.95

Water

Wrinkle Black with Highlighted Fins

Gear

310-1102A$3,460.95

Oil

Wrinkle Black with Highlighted Fins

Chain

310-1103B$3,265.95

Oil

Wrinkle Black with Highlighted Fins

Gear

310-1104A$3,460.95

Oil

Wrinkle Black with Non-Highlighted Fins

Chain

310-1105B$3,265.95

Oil

Wrinkle Black with Non-Highlighted Fins

Gear

310-1106A$3,460.95

WaterBlack Granite with Highlighted Fins

Chain

310-1107B$3,265.95

WaterBlack Granite with Highlighted Fins

Gear

310-1108A$3,427.95

OilBlack Granite with Highlighted Fins

Chain

310-1109B$3,265.95

OilBlack Granite with Highlighted Fins

Gear

310-1110A$3,460.95

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSEDFOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT.

33

3 PIECE FLYWHEEL ASSEMBLIESThe crankshaft is the heart of any performance engine and S&S Cycle has been perfecting the art for over six
decades. Stronger, more durable, and trued to a spec others can only dream of, our new crankshaft assemblies
for the M8 platform are the best of the best to build your high performance engine around.

Lower End

Features & Benefits:• Available in 4 3/8", 41/2" & 45/8" Stroke• Available with or without Balancer Gear
• Heat Treated 4140 Material is harder & more than twice as strong as stock• Stronger assembly eliminates need to weld crankpin• S&S High Strength Connecting Rods are designed with
Finite Element Analysis to eliminate weak spots and handle more power!
• Available with either full width or tapered wristpin connecting rods
• Perfect for Gear Drive Cams
• Consistent balance & precision machining• Capable of higher RPM

FLYWHEEL ASSEMBLIES FOR 2017–2021 M8 MODELS
Displacement(with S&S® cylinders & pistons)

StrokeCompression Ratio

Balanced to Total Piston Weight (gms)Part #

MSRP

124"

4 3/8"

10.8

1213

320-0604$1,876.95

128"

4 ½"

10.8

1213

320-0603$1,876.95

131"

4 5/8"

10.8

1213

320-0605$1,876.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
CLEAN AIR ACT

S&S does not recommend compression ratios higher than 10:1 for Tri Glide ® or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.
34

TOP END GUARDIAN KIT

Milwaukee-Eight ®

The M8 engine platform is capable of serious power, but it also has a few weak spots. The new S&S Cycle
Guardian Kit is designed to update the top end to better support big bore and cam mods. If you're doing a
124/128/131 conversion this kit is a must have!
• Everything you need to update top end in one convenient kit!
• Rocker arm shafts are 66% stronger than stock• Rocker arm stud kit extends the life of your cylinder heads by
preventing damage to the rocker arm towers• Head bolt kit is made of 8640 heat treated steel with 200,000 psi Ultimate Tensile
strength cold rolled threads & formed washer make these head bolts durable & reusable• Roller rocker arms help relieve additional stress caused by high lift camshafts running at high rpm!

TOP END GUARDIAN KIT

900-1092$917.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED
MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERALPOLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT

Valve Train
35

36

Valve TrainMilwaukee-Eight ®

475 PERFORMANCE CAM KIT WITH TUNER
Fitment:• 2017–2019 touring models
Features and benefits:• Bolt-in, legal performance• Choose between chain or gear driven cam kits
• No need for expensive dyno tuning• Display vehicle data channels in real-time• Weather-resistant for use in all conditions• High contrast display, viewable in direct sunlight

475 PERFORMANCE CAM KIT
FOR 2017–2019 M8 MODELS

Not yet available for 2020 or 2021 models

475 Chain Drive

330-0725$628.95

475 Gear Drive

330-0726$846.95

Exempt from emissions tampering regulations under CARB EO# D-355-32

114” HD® Street Glide®
140
130
120

Designed to work specifically with our Stealth aircleaner kits and Mk45
mufflers with a stockheader or our El Dorado
exhaust system

110
100
90
80
70
60
50

Stock 114

40

HP 75.12
TQ 100.94

30
20
2000

2500

3000

3500

EO #D-355-32

S&S 475 Cam

HP 105.82
TQ 114.74

4000
RPM

4500

STOCK vs S&S 475 CAM

5000

5500

6000

on a 2017 touring bike— with Stealth Air
Cleaner and El Dorado Exhaust System

475 cam with Stealth Air Cleaner and El Dorado Exhaust System

Valve Train
37

CAMSHAFT SPECS
350: Stock specs, but eliminates cam drive chain & tensioner
465: Bolt-in cam designed to make best power from 1500–4500 RPM. Excellent low and mid-range torquemake this a great choice for two-up riding and touring where low end grunt is the priority. Works great withstock bore, heads and throttle body and with compression ratios up to around 10:1.
475: Bolt-in cam providing best power from 2200–5200 RPM in engines with displacements from 107–135
cubic inches. Compatible with compression ratios up to 11:1. Works great with stock heads and throttle bodyfor mid range power but with the ability to stretch the power higher into the RPM band with more mods.
 40: Designed to add even more stump pulling torque to your big bore M8, for those that keep the revs
5
below 6000 RPM when combined with 124 & larger big bore kits.
550: High lift cams for maximizing peak torque and horsepower. Designed to make top end power in
combination with our big bore cylinder and piston kits. Excellent power from 3000 RPM to redline. Requires
performance valve springs and adjustable pushrods. Suitable for compression ratios between 10:1 and 12-1.
590: Designed as an all out Horsepower Cam for 124 and larger engines. Big lift lets your big mill breathe highinto the RPM range!

S&S® CAMSHAFT SPECIFICATIONSValve Timing

Valve Train

550 Big Bore
590 Big Bore Max HP

Valve Lift @ TDC

Open BTDC/
Close ABDCOpen BBDC/
Close ATDC

IntakeExhaustIntakeExhaustIntakeExhaustIntakeExhaustBoth-7.0/1.0

33.0/-14.0

174.0

199.0

.350

.374

94.0

113.5

.057

.048

Front

2.6/14.6

30.1/8.8

197.2

218.9

.462

.462

96.0

100.6

.087

.109

Rear

2.8/14.4

33.1/5.8

197.2

218.9

.462

.462

95.8

103.6

.088

.098

Front

6.2/27.2

55.5/28.5

213.5

263.9

.475

.475

100.5

103.5

.107

.208

Rear

2.2/31.2

52.5/20.2

213.5

252.5

.475

.475

104.5

106.0

.093

.170

Front

17.7/30.6

21.2/33.9

228.3

235.1

0.540

0.540

96.4

83.6

0.175

0.262

Rear

14.9/28.7

37.7/26.9

223.6

244.6

0.540

0.540

96.9

95.4

0.161

0.216

Front

9.4/29.4

62.5/30.5

218.9

273.1

.550

.550

100.0

106.0

.127

.232

Rear

3.1/31.1

59.4/38.4

214.2

277.8

.550

.550

104.0

100.5

.099

.264

Front

15.6/43.7

64.8/21.2

239.4

266.1

0.59

0.59

104.1

111.7

0.165

0.186

Rear

20.2/53.6

62.7/15.7

253.9

258.4

0.59

0.59

106.7

113.5

0.186

0.158

350G
Stock Grind
Gear Drive

540 Big Bore Torque

Lobe Center Line

ExhaustCylinder475 HP

Valve Lift

IntakeCam Name

465 Performance

Valve Duration

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTIONCONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT

38

Milwaukee-Eight ®

CAM KITS

Fitment:• 2017–2021 touring and 2018–2021 Softail ® models
Features & Benefits:• 350G gear drive cam has stock specs, but eliminates cam drive chain & tensioner• 465 Cam is designed for touring applications, focusing power in lower RPM range and substantial increase
in torque• 475 Cam bumps HP to over a 100 and makes bigger power towards top end of RPM range• 540 Cam was designed to add even more stump pulling torque to your big bore M8• 550 Cam was designed for maximizing peak torque and horsepower• 590 Cam is designed as an all out Horsepower Cam for 124 & larger engines—Big lift lets your big mill breathe high into the RPM range!

• Cam kits include all required bearings, o-rings, and hardware• Gear drive cams provide improved valve timing accuracy• Made in the USA• S&S Camshaft installation kits* for M8 models include the essentials for performance cam installations: ahigh quality inner needle bearing, cam cover gasket, o-rings and gear drive specific hardware on gear drive
kits are bundled with step by step instructions to smooth out your bumpstick install
CHAIN DRIVE CAMSHAFTS FOR 2017–2021 HD® MODELS WITH M8 ENGINE
MSRP
Description
Part #GEAR DRIVE CAMSHAFTS FOR 2017–2021 HD® MODELS WITH M8 ENGINE
MSRP
Description
Part #

465C

330-0620$234.95

350G – Stock

330-0625$458.95

475C

330-0641$299.95

465G

330-0624$463.95

540C

330-0713$234.95

475G

330-0645$458.95

550C

330-0643$252.95

540G

330-0715$458.95

590C

330-0730$234.95

550G

330-0647$459.95

590G

330-0732$472.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOTLEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLEUNDER THE CLEAN AIR ACTREPLACEMENT PARTS
Description
Part #NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOTLEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLEUNDER THE CLEAN AIR ACTMSRPCam Cover Gasket

310-0911$21.95

Pinion Gear

330-0622$131.95

Undersized Pinion Gear

330-0626$132.95

Oversized Pinion Gear

330-0627$132.95

Cam Gear Drive

330-0621$252.95*CAMSHAFT INSTALLATION KITS FOR ALL 2017–2021 M8 MODELS
MSRPDescription
Part #
Chain Drive
Installation Kit

330-0619$54.95

Gear Drive
Installation Kit

330-0623$61.95

Valve Train
39

OIL CONTROL VALVE
Often ignored, the factory oil control valve on all oil cooled M8 engines regulates the amount of oil
flowing to the oil cooler/heads.
The stock assembly includes a check ball retainer that is formed steel. Over time, this retainer can fatigue
and break, causing chips to flow through the oil system, back into the tank and can cause significant
damage along the way.
• The S&S oil control valve is constructed of 6061 billet aluminum and the check ball retainer
is machined from high strength steel for long-lasting durability. Don’t risk the integrityof your performance engine!
• High-Strength Billet Construction• Easy to Install
OIL CONTROL VALVE

310-1150$50.95Don’t let this happen to you!
Your M8 engine is too valuable not to protect.

Valve Train

CAM CHAIN TENSIONER
Fitment• 2017–2021 M8 models
Features & Benefits:• Precision Machined from Billet Aluminum• Thicker shoe for longer wear
• Direct chain oiling• Larger piston for more consistent pressure• Tighter tolerances improves stability

CAM CHAIN TENSIONER FOR M8 MODELS
40

330-0737 $104.95

Milwaukee-Eight ®

CAM PLATE & OIL PUMP KITS
Fitment:• 2017–2021 touring M8 models
Oil Pumps• Precision machined from billet aluminum• Independent scavenge sections for flywheel
cavity and cam chest• Debris screens in both scavenge pickups• Magnet in cam chest to help prevent debris
from entering pumpPressure relief valve can be adjusted withunit in engine

Cam Plate• Precision machined from billet aluminum• Passage plugs removable for servicing• Bronze bushings for better lubrication& improved wear characteristics
Kits• Buy together and save $$CAM PLATE & OIL PUMP KITS FOR M8 MODELS
Description

Part #MSRP

Cam Plate & Oil Pump/Oil-Cooled

310-0998B$836.95

Cam Plate & Oil Pump/Water-Cooled

310-0997B$836.95

CAM PLATE ONLY

310-0939A$406.95

Description

Part #MSRP

Oil-Cooled

310-0959A$615.95

Water-Cooled

310-0947A$587.95

OIL PUMP ONLY

• 44% flow increase on supply side and
58% flow increase on scavenge

Valve Train
41

CAM CHEST KITS
Cam:

Fitment:®

• 2017–2021 HD touring models• 2018–2021 HD Softail ® models

Oil Pump/Cam Plate:• Precision machined from billet aluminum• Passage plugs removable for servicing• Independent scavenge sections for flywheel cavity
and cam chest• Debris screens in both scavenge pickups• Magnet in cam chest to help to stop debris fromentering oil pump
• 44% flow increase on supply side and 58% flow
increase on scavenge• Pressure relief valve is adjustable with unit
installed in engine• Kits now include updated oil pump with groove
for optional OEM oil seal

Pushrods:• Quickee Pushrods• Chrome or Gloss Black pushrod tubes available

Tappets:• Hand assembled to exacting tolerances• Reduced valve train noise from start up
to shut down
• Close tolerances for low leak down rates• Fast pump up and superior high rpm performance

Tappet Cuffs:• Hard anodized black coating• Billet aluminum construction• Improve tappet stability in high lift & high rpm situations• S&S 465, 475, 540, or 550 cam• 465 is a torque cam — perfect for touring applications• 475 is a bolt-in 100hp cam!
• 540 is designedo add even more stump pulling torque toyour big bore M8, for those that keep the revs
below 6000 rpm. Requires the addition of valve springs(included in kit)
• 550 is designed for use with large displacement
engines. Requires the addition of valve springs(included in kit)
• Available in both gear drive and chain drive
variations• Gear drive kits provide improved cam timing
accuracy & eliminate the stock cam chain tensioner

Valve Springs:• Comes with the high lift kits, 540 & 550• Works with cams up to .605 lift
• High Performance Conical Single Wire Spring
includes: Springs, Top Collars, Keepers,
Valve Seal/Bottom Collar

Cam Chain Tensioner• Comes with Chain Drive Kits
• Precision Machined from Billet Aluminum• Thicker shoe for longer wear
• Direct chain oiling• Larger piston for more consistent pressure• Tighter tolerances improves stability

Valve Train

INCLUDES ALL GASKETS, BEARINGS, & HARDWARE REQUIRED FOR INSTALLATIONMADE IN USA

42

Milwaukee-Eight ®

124” S&S® Big Bore Kit on HD® Ultra Limited
140
130
120
110
100
90

STOCK CAM vs 540 CAM

80

on a 2017 HD® Limited — 124 Big Bore kit, 5.5 g/s injectors,
2-1 Sidewinder, Stealth +1 Air Cleaner

70
60
50

Stock 107

40

20
2000

HP 75.00
TQ 102.96
2500

3000

3500

S&S 540 Cam

HP 113.91
TQ 130.39

4000
RPM

4500

5000

5500

6000

STOCK CAM Max Power = 75.00
Max Torque = 102.96
540 CAMMax Power = 113.91
Max Torque = 130.39

cam with 124” Big Bore Kit and Sidewinder 2:1 Exhaust with Stealth Air Cleaner Kit
CAM540CHEST
KITS FOR 2017–2021 TOURING MODELS & 2018–2021 SOFTAIL® MODELS

Pushrods

Part #MSRP

Chain Drive 550C

Chrome310-1082B$1,937.95

Chain Drive 540C

Chrome310-1118A$1,864.95

Chain Drive 475C

Chrome310-1004B$1,580.95

Chain Drive 465C

Chrome310-1003B$1,580.95

Gear Drive 550G

Chrome310-1083A$2,193.95

Gear Drive 540G

Chrome310-1119$2,172.95

Gear Drive 475G

Chrome310-1006A$1,774.95

Gear Drive 465G

Chrome310-1005A$1,774.95

Chain Drive 475C

Black

310-1012B$1,621.95

Chain Drive 465C

Black

310-1011B$1,621.95

Gear Drive 475G

Black

310-1014A$1,815.95

Gear Drive 465G

Black

310-1013A$1,815.95

Water Cooled

Pushrods

Part #

Chain Drive 550C

Chrome310-1080B$1,937.95

Chain Drive 540C

Chrome310-1116A$1,846.95

Chain Drive 475C

Chrome310-1000B$1,580.95

Chain Drive 465C

Chrome310-0999B$1,580.95

Gear Drive 550G

Chrome310-1081A$2,131.95

Gear Drive 540G

Chrome310-1117$2,131.95

Gear Drive 475G

Chrome310-1002A$1,774.95

Gear Drive 465G

Chrome310-1001A$1,774.95

Chain Drive 475C

Black

310-1008B$1,621.95

Chain Drive 465C

Black

310-1007B$1,621.95

Gear Drive 475G

Black

310-1010A$1,815.95

Gear Drive 465G

Black

310-1009A$1,815.95

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR
VEHICLE UNDER THE CLEAN AIR ACT

Valve Train

Oil Cooled

43

44

Valve TrainMilwaukee-Eight ®

TAPPET CUFFS
Factory tappet guides are constructed of plastic and are at
risk for allowing the tappets to twist under heavy stress.
S&S Tappet Cuffs capture the tappets without impacting
vertical motion and keep them perfectly aligned, even inhigh stress, high RPM situations
Fitment:• 2017–2021 touring models• 2018–2021 HD® Softail ® models
Features & Benefits:• Hard anodized black coating• Billet aluminum construction• Stronger material eliminates distortion• Improve tappet stability in high lift and high rpm situations• An easy upgrade when changing tappets or doing a cam change
TAPPET CUFFS
Fitment

Part #

2017–2021 HD® touring models
2018–2021 HD Softail® models

330-0655 $84.95

MSRP

PRECISION TAPPETSHigh performance tappets are a cornerstone of the S&S line up and we are always looking to improve
our products. After months of research and countless hours of testing we are excited to reveal the latest
in performance tappets. The S&S Cycle Precision Tappets replace both our standard as well as premium
aatappets. Each Precision Tappet is hand assembled to exacting tolerances and designed for quiet operation
and rapid pump up and all are made in the USA.
Fitment:• 2017–2021 big twins with M8 engine
Features & Benefits:• Reduced valve train noise from start up to shut down
• Close tolerances for low leak down rates• Fast pump up and superior high rpm performance

PRECISION TAPPETS
Set of 4 tappets

330-0718$279.95

Valve Train
45

QUICKEE ADJUSTABLE PUSHRODSALL S&S QUICKEE PUSHRODS ARE COVERED BY US PATENT NO. 7644694

Fitment:• 2017–2021 big twins with M8 engine
Features & Benefits:• Adjustable to accommodate all tappets and cam basecircle diameters and engine heights• Easy to install — removal of rocker box not needed• No threads on wrench flats• Also available in gloss black
Kit Contents• Pushrods, gloss black or chrome pushrod covers,
o-rings, and cover keepers
QUICKEE ADJUSTABLE PUSHRODS
Description

Part #

MSRP

Gloss Black Pushrod Kit

930-0137$334.95(includes chrome pushrod covers, o-rings, & cover keepers)

Chrome Pushrod Kit

930-0123±$314.95

Pushrods Only

93-5122$209.95(includes black pushrod covers, o-rings & cover keepers)

PUSHROD REPLACEMENT PARTS FOR 2017–2021 BIG TWINS WITH THE M8 ENGINE
Description
Part #MSRP
Pushrod Cover Kit

Gloss Black

930-0124$203.95

Chrome106-1340$193.95

Top Cover

93-4016$19.95

Bottom Cover

93-4015$21.95

Cover Cap

93-4017$14.95

Cover Spring

93-4018$7.95

Cover Cap Washer

50-7131$6.95

Pushrod O-ring Kit (includes top, middle,& bottom o-rings for four pushrods)

93-4022$12.95Top O-ring

50-8039$6.95

Middle O-ring

50-8038$6.95

Bottom O-ring

50-8037$6.95

Valve Train(includes top & bottom covers,
cover cap, cover spring, spring
washer, & o-rings for fourpushrods)

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

S&S quickee pushrods require S&S aftermarket tubes.
46

PUSHROD COVER KEEPER SETS
Pushrod CoverKeeper Kit (2.200")

Gloss Black

930-0138$40.95Chrome930-0129$40.95

ROCKER ARM SHAFT SET

Milwaukee-Eight ®

• M8 Rocker Arm Shafts are a direct replacement
for OEM (HD ® part #17300059B)• Improved durability• Made from bearing quality steel, precision
centerless ground for perfect fit!
• S&S Shafts are 66% stronger, preventing damage
from radical cam profiles

S&S recommends installing Rocker Stud kit 900-1013. See next page.

ROCKER ARM SHAFT SET

900-1090$173.95

FORGED ROLLER ROCKER ARMS
Big lift cams can open up the high rpm potential of the M8 powerplant, but they can also cause their own
issues due to the extra stresses and stock valve train geometry. Excessive valve thrust and valve train wear
inspired S&S engineers to design stronger, more durable components that will help you get the most out ofyour M8.
S&S Forged Roller Rocker arms for M8 models are stronger, more durable and easier on the rest of your valve
train, and are essential for increasing the longevity of your valve train components on cams with .540" orgreater lift!
Features & Benefits:• Forged from 8620 steel for greater strength• Designed using Finite Element Analysis (FEA)• Rollers eliminate thrusting on valves for decreased wear on the valve train• Rocker geometry is better suited to high lift cams
• Larger surface area on the thrust surfaces reduces wear on the heads• Oil is sprayed directly on the valve springs, reducing potential for
breaking a valve due to over-heating(stock rockers tend to oil the rocker boxes, not the valves)

FORGED ROLLER ROCKER ARMS

S&S Forged Roller Rocker Arms for M8 Models

900-1084 $611.95

Rebuild Kit

900-1087 $167.95

Valve Train• Compatible with stock or S&S CNC heads• 1.640 Ratio• Capable of .650" max Valve Lift
• Serviceable and rebuildable for long term durabilty• A must have for cams with .540" or greater lift!

47

ROCKER ARM STUD KITFeatures & Benefits:• Aircraft grade C4037 steel stud and 12 point nut• Allows for removal of rocker arm assemblies
without damage to the head
• A must have for performance builds
ROCKER ARM STUD KIT

900-1013 $122.95

Rocker Arm Stud Kit for M8 2017–2021 Models

VALVE SPRINGS

Features & Benefits:• Works well with cams up to .605" lift
• High Performance conical single wire spring• Kit includes: Springs, Top Collars, Keepers,& Valve seal/bottom collar
Lift

Installed Height

Seat Force

Force @ Max Lift.605"

1.535"

68 lb.

264 lb.

VALVE SPRING KIT
Description

Part #

Valve Spring Kit for M8 2017–2021 Models 900-0958

REPLACEMENT PARTS FOR VALVE SPRING KITS
Description
Part #

900-0956$7.95

Top Collar

900-0952$17.95900-0959$40.95

Valve Stem Oil Seal, Hat Style,
6mm, M8 models

MSRP$395.95

MSRP

Valve Keeper

8 packHEAD BOLTS

Valve Train

Features & Benefits:• Reusable• 14% increase in strength over stock• Heat treated 8640 steel• 200,000 psi ultimate tensile strength• Durable black oxide coating• 9/16" 12 point head with integral washer• Formed threads• Cold formed head
• Compatible with both MLS & graphite head gaskets
HEAD BOLTS
Description

Part #MSRP

Sold as set of 8

900-1006$152.95

INNER PRIMARY BEARING RACE

Features & Benefits:• Will not “walk” on transmission mainshaft• Prevents costly damage to mainshaft seal, output
gear & output gear bearing• Simple to installFits:• 2017–2021 M8 models

INNER PRIMARY BEARING RACE48

Recommended for use with S&S Power
Packs and Big Bore Kits for M8

560-0241$82.95

Milwaukee-Eight ®

55mm PERFORMANCE MANIFOLD
Big bore engines are all about the flow, more air in and more air out, anything that slows that down, robs
horsepower. The factory M8 intake manifold does a decent job in stock form, but starts getting in the way
when trapped between 124" and larger cylinders. The stock polymer unit is also less tolerant of the additional
heat that a big bore engine can make at full noise. The solution is the new S&S high flow cast aluminum manifold
and a must have for top level performance in the M8 platform.
Features and Benefits• High-Flow, adds 3–5 hp• Must have for big bore engines• CNC Machined• T6 heat treated cast aluminum• Replaces stock, plastic manifold• Includes new rubber seal
• Easy to Install

FITMENTPART #

MSRP

2017–2021 HD® M8 models

160-0241$209.95

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING
VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE
NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT.

Valve Train49

S&S LUBRICANTS®

Features & Benefits:• Ultimate protection• Superior lubrication for reduced engine wear
and lower oil temperatures• Provides consistent viscosity, and resists
thermal breakdown and oxidation
at elevated temperatures• Includes a oil drain plug o-ring
S&S® OIL CHANGE KIT
Description

Part #

Oil, Filters, & Gaskets

2017–2021 HD® Models with M8 engine
5 quarts of SAE 20W-50 Synthetic Engine Oil with chrome oil filter

50

S&S® OIL
Description

Part #MSRP

20W50 Synthetic, 1 quart

3601-0407$19.95

20W50 Synthetic, 2.5 Gallon

3601-0408$183.95

Primary, Synthetic, 1 quart

3603-0044$19.95

80W140 Gear, Synthetic, 1 quart

3604-0007$19.95

MSRP

3601-0492 $140.95

Milwaukee-Eight ®

OIL FILTERS
Features & Benefits:• Captures smaller particles than stock filters• Low restriction to oil flow
• Direct bypass — bypass oil does not pass overdirty filter media• Smaller diameter for easier installation• Black or chrome finish
S&S® OIL FILTERS
Year Application

MicronRatingM8 engines

10µ

Black

MSRP

31-4104A 63798-99A $23.95

31-4103A 63731-99A$20.95310-0242

310-0241$183.95

QTY

Chromeeach
12 pack

MSRP$279.95*Contains an anti-drain back valve

GASKETSGASKETS
Cam Cover

310-0911$21.95each

106-5029$7.95

10 pack

93-1072$71.95

Valve Stem Oil Seal, Hat Style, 6mm,

8 pack

900-0959$40.95

Head gasket, 4.25" Bore, .030”
Stock bolt pattern

2 pack

930-0140$101.95

Exhaust Gaskets

Base gasket, Stock to 4.250" Bore, .014”
Stock bolt pattern

930-0139$61.95Gasket Kit, includes Head, Base, & Exhaust,
4.25" Bore

900-0955$164.95

O-ring kit, Oil Pump

500-0850$9.95

2 packOil, Filters, & Gaskets
51

S&S ® Cycle, Inc. • 14025 CTY HWY G • Viola, WI 54664
608-627-1497 • sscust@sscycle.com • sscycle.com
510-0728 • August 2023
MADE IN USA

S&S Cycle, Inc. reserves the right to change prices, terms, availability, and specifications without prior notice.