PERFORMANCE CURVES
6LPA-DTP

6LPA-STP

6LPA-DTP

6LPA-STP

6LPA-DTP

6LPA-STP

MARINE
DIESELENGINESPLEASURE-CRAFT POWER
6LPA-DTP

6LPA-STP

191kW(260hp)

232kW(315hp)

Two engines which arelight in weight, small in sizeand have high power outputs.
Cam Area Improvements: These engines contain manyhigh performance features sure to appeal to the serious
motorboater. The overhead cam design develops max hp at higher
revs, allowing smaller, smoother running propellers. The camshaft isbelt driven, reducing weight, number of parts, gear wear and noise.
The STP model even features 4 valves per cylinder for enhanced
breathing and top end performance.

Load factor calculation based on an exponent of 3.0.

Better Fuel and Air Management: A waste-gated watercooled turbo really makes things happen when the throttle is put
down hard. To reduce embarrassing black smoke at these times, the6LP series engines have boost-compensated distributor-type fuelpumps. Burn efficiency has been improved as well.

Reduced Vibration and Noise: Two stage springs on fuelinjectors reduce injection noise. Ladder-frame, full block-width
crankshaft bearing cap structure reduces lower block area
distortion and fights bearing slap. And of course belt drive
makes for big cuts in timing gear noise, while the 12 balanceweight crankshaft and rubber engine mounts soak up muchof the usual diesel vibration.
Extras: Ordering the STP gets you a “go fast package” ofbigger oil cooler, gallery cooled pistons and big breathing 4valve head.
Engines can be ordered with optional instrument panels B, C,or D. Panel B mounts the usual tachometer and vital sensorsfor battery, temperature and oil, but in addition has sensors fori) fuel/water separator water level,ii) seawater flow at intercooler, andiii) waste-gate valve blockage(boost pressure).
Panel C and D offer more sensors again,
namely foriv) heat exchanger fresh water level.
The aim is to go faster on less fuel,while at the same time keeping a far
better eye on all those vital engine
health functions.

IMO Compliant
Photo may show optional equipment

SPECIFICATIONS
Model

6LPA-DTP

6LPA-STP

Configuration

4-stroke, vertical, water cooled diesel engineNumber of cylinders

6 in-line

Bore x Stroke

mm (in.)94 X 100(3.70 X 3.94)

Displacement

lit. (cu. in.)4.163(254.04)

Continuous rating output at crankshaft

kW/rpm (hp/rpm)

154(210)/3600

188(255)/3600

Maximum output at crankshaft

kW/rpm (hp/rpm)

191(260)/3800

232(315)/3800

Combustion system

Direct injection

Aspiration

Turbocharged with intercooler

Starting System

Electric starting (D.C. 12V, 2.5kW starting motor/12V, 80A alternator)

Cooling System

Fresh water cooling by centrifugal fresh water pump and rubber impeller seawater pump

Direction of rotation
Dry Weight
Atmospheric conditions= ISO 3046/1, Density of fuel= 0.86g/cm3, 1hp= 0.7355kW

Counterclockwise viewed from flywheel
380 (837)

kg (lbs)
Recommended Marine gear: “ZF” Model:

ZF63A (angle 8˚),
ZF63 (Parallel),
ZF63IV (V-drive),

DIMENSIONS
6LPA-DTP

6LPA-STP

6LPA-DTP

6LPA-STP

408 (899)
Reduction ratio, 1.22:1, 1.56:1, 2.04:1 & *2.52:1.
Reduction ratio, 1.51:1, 1.93:1, *2.50:1 & *2.78:1.
Reduction ratio, 1.29:1, 1.56:1, 2.00:1 & *2.48:1.

*:Not for 6LPA-STP
Marine gear not supplied by Yanmar.