Cummins B Series engine - wikipedia Cummins B Series engine The Cummins B Series is a family of American straight - four and straight - 6 diesel piston engines that are manufactured by Cummins. This particular family, or Series, is one of the most prolific offerings for On - Highway, Automotive purposes from Cummins, and is widely used for the Off - Highway Markets it serves such as Construction, Mining, Agriculture, Marine and Industrial sectors to name a few. The B Series is known for the popular 5.9 liters ( 360.0 cu in ) B Series Cummins engines. The engine was originally designed by Cummins and Case Corporation for construction machinery applications, and gained much of its popularity after appearing in the Dodge Ram, in 1989. 6.7 Demo 6.7 Euro 4 / 4 + Contents 1 General engine features 2 First generation 2.1 3.9 L / 4BT 2.2 6BT 3 ISB 5.9 3.1 QSB 3.2 Dodge Ram ISB 3.3 Dodge Ram ISB CR 4 ISB 6.7 4.1 Changes over the 5.9 4.2 4 - cylinder 5 References General engine features The B - series features engine bores machined directly into the block ( rather than the wet liners used on earlier Cummins engines ). It was also set apart by the use of a shallow one - piece head, requiring closer tolerances than in other Cummins products. The engine was first manufactured in Rocky Mount, North Carolina, and other plants were later added in Mexico, Turkey, and Darlington, UK. Every Cummins powered Dodge Pickup ( since initial production in 1989 ) has come equipped with a turbocharger. It uses a gear - drive camshaft for extra reliability. Also specified is a deep - skirt engine block and extra-strong connecting rods. A Holset turbocharger is used. The original B Series was updated with 24 valves and an electronic engine management system to become the ISB in 1998. First generation Cummins B Series Overview Manufacturer Cummins Also called 4B / 6B / 6BT / 6BTA Production 1984 -- 1998 Layout Configuration I4 and I6 diesel engines Displacement 3.3 liter 3.9 liter 5.9 liter Cylinder block alloy Iron Cylinder head alloy Iron Valvetrain 2 Valves per cylinder Combustion Turbocharger Holset Engineering Fuel system Direct injection Management Mechanical Fuel type Diesel Oil system Wet sump Cooling system Water - cooled Dimensions Dry weight 1,100 lb ( 499 kg ) 3.9 L / 4BT The 3.9 L / 4BT Cummins is an engine in the same family as the 5.9 liters ( 360.0 cu in ) Cummins turbodiesels. The 3.9 L / 4B is an inline four - cylinder turbodiesel that was popular for many step van applications, including bread vans and other commercial vehicles. It has also gained popularity as an engine swap into smaller trucks. The lowest powered 4B produces 55 hp ( 41 kW ). 6BT show More Details 5.9 - liter B series Cummins Type Inline six - cylinder turbo diesel, direct fuel injection Displacement 359 cu in Bore 4.02 inches ( 102.0 mm ) Stroke 4.72 inches ( 120.0 mm ) Compression ratio 17.5 : 1 Max power 215HP at 2500 rpm Max torque 440 lb - ft at 1600 rpm Valve gear In block cam with 2 valves per cylinder Cylinders 6 in line Cylinder head Cast iron Cylinder block Cast iron Camshaft drive Gear driven Crankshaft Forged steel, seven main bearings Engine management Bosch Fuel injection High pressure diesel direct injection Emission control None Emission level ? Turbocharger Holset Lubrication system Wet sump System capacity with filter 3 Gallons Cooling system ? System capacity incl heater ? 5.9 Cummins in 1991 Dodge Ram with the valve covers removed exposing the Valvetrain The 5.9 liters ( 360.0 cu in ) 6BT, aka the Cummins `` 12 - valve '' was the first member of the `` B '' engine family to be used in a light truck vehicle. The 6BT used Robert Bosch GmbH fuel systems, injector, and VE rotary pump and P7100 inline injection pumps. Some early 6BTs were supplied with CAV rotary pumps instead, before the Bosch system became the sole standard. This engine started life in 1984 designed as an agricultural engine, for use in Case agricultural equipment. After 1989, the 6BT engine was used in light duty, medium duty and select heavy duty trucks and buses. Appearing in the 1989 -- 1998 Dodge Ram pickup truck, it became a popular alternative to the large V8 gasoline engines normally used in full - size pickup trucks, since it produced the torque at low engine speeds, and significantly better fuel mileage. During that time, the Dodge Ram was the only diesel pickup that did not rely on glowplugs for cold weather starting. ISB 5.9 Cummins ISB 5.9 L Overview Manufacturer Cummins Also called ISB Production 1998.5 -- 2007 Layout Configuration inline - six cylinder engine Displacement 5.9 L ( 360 cu in ) Cylinder bore 102.0 mm ( 4.02 in ) Piston stroke 120.0 mm ( 4.72 in ) Cylinder block alloy Iron Cylinder head alloy Iron Valvetrain 4 Valves per cylinder Combustion Turbocharger Holset Engineering Fuel system Direct injection Management Mechanical with electronic advance and common rail Fuel type Diesel Oil system Wet sump Cooling system Water - cooled Dimensions Dry weight 1,100 lb ( 499 kg ) Chronology Predecessor 6BT show More Details 5.9 - liter ISB Cummins Type Inline six - cylinder turbo diesel, direct fuel injection Displacement 359 cu in Bore 4.02 inches ( 102.0 mm ) Stroke 4.72 inches ( 120.0 mm ) Compression ratio 17.2 : 1 Max power 325hP at 2900 rpm Max torque 610 lb - ft at 1600 rpm Valve gear In block cam with 4 valves per cylinder Cylinders 6 in line Cylinder head cast iron Cylinder block cast iron Camshaft drive Gear driven Crankshaft Forged steel, seven main bearings Engine management Bosch Fuel injection High pressure diesel direct injection, symmetrical combustion chamber Emission control Electric fuel control Emission level ? Turbocharger Holset Lubrication system Wet sump System capacity with filter 3 Gallons Cooling system ? System capacity incl heater ? The 5.9 liters ( 360.0 cu in ) ISB ( Interact System B) is one of the largest straight - six engines used for light truck vehicles and school buses, and the improved high output 600 version was on the Ward 's 10 Best Engines list for 2004. One unusual feature of the ISB is that it is a multi-valve pushrod engine design. The engine displaces 5,883 cubic centimetres ( 359.0 cu in ), with a 102.0 millimetres ( 4.02 in ) cylinder bore and 120.0 millimetres ( 4.72 in ) piston stroke. A turbocharger is used to increase the output in the high - compression ( 17.2 : 1 in recent versions ) diesel. It is an all - iron engine with forged steel connecting rods, an assembled camshaft, and a cast aluminum intake manifold. The engine is produced in Columbus, Indiana. The ISB uses electronically controlled Robert Bosch GmbH fuel systems, unlike the 6BT systems which were mechanical. Early ISB engines utilize Bosch injectors and a Bosch VP44 high pressure pump. Later ISB designs have common rail fuel injection, Bosch injectors, and a Bosch CP3 high pressure pump. QSB The 5.9 liters ( 360.0 cu in ) QSB ( Quantum System B) is the off - road, heavy duty version of the ISB. Typically used in marine, agricultural, and construction applications, these engines share many of the same parts as the ISB and utilize the same Bosch fuel system. Dodge Ram ISB Midway through model year 1998, the Dodge Ram switched from the 6BT to the ISB to meet updated emissions requirements. Like other ISB 's, these engines started out using the Bosch VP44 rotary injection pump. The VP44 setup meant that timing and fuel could be precisely controlled, which led to cleaner emissions. However, VP44 failure rates were higher than the older P7100 injection pump. The compression ratio in these engines was 17.2 : 1. The 1998 -- 2000 ISB was rated at 215 horsepower ( 160 kW ; 218 PS ) and 420 pound - feet ( 569 N ⋅ m ) when equipped with the 47RE automatic transmission. The 1998 ISB was rated at 235 horsepower ( 175 kW ; 238 PS ) and 460 pound - feet ( 624 N ⋅ m ) when equipped with the manual transmission. The 1999 -- 2000 ISB was rated at 235 horsepower ( 175 kW ; 238 PS ) and 460 pound - feet ( 624 N ⋅ m ) when equipped with a manual transmission. For the 2001 -- 2002 model years, a standard output and a high output ISB Cummins engine were offered. The standard output, which was the same as the previous engines was rated to 235 horsepower ( 175 kW ; 238 PS ) and 460 pound - feet ( 624 N ⋅ m ) when equipped with either a manual transmission or automatic. The high output ISB was rated at 245 horsepower ( 183 kW ; 248 PS ) and 505 pound - feet ( 685 N ⋅ m ), with only a NV5600 six - speed manual transmission available. The high output engine was different in a few ways from the standard output engine ; it had higher compression ( 17.1 : 1 ), powdered metal valve seat inserts, a larger flywheel, the Bosch fuel system was reworked to allow higher fuel flows, and fuel - injection timing was altered. Dodge Ram ISB cr 5.9 Cummins Common rail fuel injection system For the 2003 model year, the Cummins was introduced with Bosch high pressure common rail fuel injection, again increasing power output. On automatic equipped vehicles, the 47RE was upgraded internally to increase durability and torque capacity, now known as the 48RE. The 2003 rating for the Dodge truck was released at 305 horsepower ( 224 kW ; 308 PS ) and 555 foot - pounds ( 752 N m ). Midway through the 2004 model year, the Cummins 600 was introduced, producing 325 horsepower ( 242 kW ; 330 PS ) at 2,900 rpm and 600 pound - feet ( 813 N ⋅ m ) at 1,600 rpm. This engine was noticeably quieter than the previous engines. ISB 6.7 Cummins ISB 6.7 L Overview Manufacturer Cummins Also called ISBe Production 2007 -- present Layout Configuration I6 diesel engines Displacement 6,690 cc Cylinder bore 107.0 mm Piston stroke 124.0 mm Cylinder block alloy Iron Cylinder head alloy Iron Combustion Turbocharger Holset Engineering Fuel system Direct injection ( Common rail ) Management Electronic Fuel type Diesel Oil system Wet sump Cooling system Water - cooled Output Power output 309 - 355 PS Dimensions Dry weight 1100 lbs show More Details 6.7 - liter ISB Cummins Type Inline six - cylinder turbo diesel, direct fuel injection Displacement 408 cu in Bore 4.21 inches ( 107.0 mm ) Stroke 4.88 inches ( 124.0 mm ) Compression ratio 17.3 : 1 Max power 385HP at 2800 rpm Max torque 930 lb - ft at ~ 1600 rpm Valve gear OHV with 4 valves per cylinder Cylinders 6 in line Cylinder head Cast iron Cylinder block Cast iron Camshaft drive Gear driven Crankshaft Forged steel, seven main bearings Engine management Bosch Fuel injection High pressure diesel direct injection with 7 - hole injectors Emission control Exhaust gas recirculation and Diesel particulate filter Emission level ? Turbocharged arger Holset ( variable ) Lubrication system Wet sump Oil System capacity with filter 3 Gallons Cooling system ? System capacity incl heater ? The B6. 7 is the latest version of the B Series. It is currently the largest straight - six engine produced for a light duty truck. It produces 350 horsepower ( 261 kW ; 355 PS ) and 650 pound - feet ( 881 N ⋅ m ) in the 2007.5 and newer Dodge 2500 / 3500 pickup trucks with the Chrysler - built six - speed 68RFE automatic transmission built at the Kokomo Transmission plant in Kokomo, Indiana. Engine torque is slightly reduced with the Mercedes G56 6 - speed manual transmission at 350 horsepower ( 261 kW ; 355 PS ) and 610 pound - feet ( 827 N ⋅ m ). The 2007 and newer 3500 Cab & Chassis trucks only get the 305 horsepower ( 227 kW ; 309 PS ) and 610 pound - feet ( 827 N ⋅ m ) version of the B6. 7, whether it has the Aisin AS68RC or the Mercedes G56 6 - speed manual transmission. As for the 2008 4500 / 5500 medium duty Chassis Cabs or the Sterling Bullet Trucks, they receive the 350 horsepower ( 261 kW ; 355 PS ) and 610 pound - feet ( 827 N ⋅ m ) version of the B6. 7, whether it has the Aisin AS68RC or the Mercedes G56 6 - speed manual transmission. Late model 2011 Ram trucks produce 350 horsepower ( 261 kW ; 355 PS ) and 800 pound - feet ( 1,085 N ⋅ m ), with the exhaust brake rating boosted from 150 horsepower ( 112 kW ; 152 PS ) to 222 horsepower ( 166 kW ; 225 PS ). Changes over the 5.9 There are many changes over the previous B5. 9 for the Dodge truck, the most obvious being the larger displacement. The B6. 7 had an increase of cylinder bore and piston stroke to 4.21 inches ( 106.9 mm ) and 4.88 inches ( 124.0 mm ) stroke, respectively, thereby giving a displacement of 408 cubic inches ( 6,686 cc ). 4 - cylinder The two - thirds version of the ISB is the 4 - cylinder 4.5 - liter at 185 hp, used in the New Routemaster, a series hybrid diesel - electric doubledecker bus in London. References ^ Jump up to : Kennett, Pat ( June 1986 ). `` The Cummins Beat ''. TRUCK. London, UK : FF Publishing Ltd : 54 -- 55. Jump up ^ Kennett, p. 57 ^ Jump up to : Cummins 5.9 - liter and 6.7 - liter inline six - cylinder diesel engines. Allpar.com. Retrieved on 2011 - 08 - 04. Jump up ^ `` ISB web ''. Retrieved 30 April 2012. Jump up ^ 2011 Ram 2500 and 3500 -- Capability -- Powertrain Archived 2011 - 02 - 24 at the Wayback Machine... Ramtrucks.com. Retrieved on 2011 - 08 - 04. Jump up ^ Cummins Engines Archived 2009 - 04 - 25 at the Wayback Machine... Everytime.cummins.com. Retrieved on 2011 - 08 - 04. Jump up ^ `` New Bus for London : Your New Routemaster questions answered ''. CBS Interactive. January 5, 2012. Retrieved 2017 - 11 - 27. Jump up ^ `` LESA44T '' ( PDF ). Wrights Group Limited. 2014. Retrieved 2017 - 11 - 27. Jump up ^ Wrights Hybrid Wrightbus Cummins Personnel Founders Clessie Cummins J. Irwin Miller Former personnel Tim Solso Current personnel Tom Linebarger Divisions, subsidiaries, and joint ventures Subsidiaries Cummins UK Joint - ventures Cummins - Wärtsilä Products Engines B Series C Series ISX L Series M Series Trucks Aeos Buildings and facilities Corporate Office Building College of Engineering for Women Retrieved from `` https://en.wikipedia.org/w/index.php?title=Cummins_B_Series_engine&oldid=850047263 '' Categories : Chrysler engines Cummins diesel engines Diesel engines by model Hidden categories : Webarchive template wayback links Articles needing more detailed references All articles with unsourced statements Articles with unsourced statements from August 2016 All pages needing factual verification Wikipedia articles needing factual verification from May 2012 Talk Contents About Wikipedia Deutsch Türkçe Edit links This page was last edited on 13 July 2018, at 07 : 01 ( UTC ). 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Question: when did the 12 valve cummins come out
Answer: 1984