The 6BT engine has recently become very popular for use in repowering various vehicles, in the UK they have proven very popular in the Land Rover community, commonly known as the ‘good’ conversion. Īfter 1989, the 6BT engine was used in light duty, medium duty and select heavy duty trucks and buses. This engine started life in 1984 designed as an agricultural engine, for use in Case agricultural equipment. Some early 6BTs were supplied with CAV rotary pumps instead, before the Bosch system became the sole standard. The 6BT used Bosch fuel systems, injector, and VE rotary pump and P7100 inline injection pumps. The 5.9L Cummins, also known as the "12-Valve" Cummins was the first member of the Cummins B-Series to be used in a light truck vehicle. System capacity incl heater: 6.5 US gal (25 l 5.4 imp gal) coolant System capacity with filter: 3.5 US gal (13 l 2.9 imp gal)Ĭooling system: 6 US gal (23 l 5.0 imp gal) coolant The most common output of this variant is 170 horsepower.ĥ.9L 6BT Cummins in 1991 Dodge RAM with the valve covers removed exposing the valvetrain 5.9L B-Series CumminsĬrankshaft: Forged steel, 7 main bearings The 4BTA is the updated version of the 4BT, also turbocharged, containing four valves per cylinder for a total of sixteen. The most common output of this variant is 105 horsepower. It contains two valves per cylinder for a total of eight. The 4BT is one of two turbocharged variants of the 3.9L B-Series engine. This variant is most commonly found in equipment such as generators and wood chippers. The lowest powered, naturally aspirated 3.9L Cummins, the 4B, produces 53 hp (40 kW). It has also gained popularity as an engine swap into smaller trucks and SUVs. Additionally it has seen broad usage in agricultural equipment. The 3.9L is an inline four-cylinder naturally aspirated (4B) or turbodiesel (4BT/4BTA) that was popular for many step van applications, including bread vans and other commercial vehicles. The 3.9L 4B/4BT/4BTA Cummins is categorized under the B Engine family alongside the 5.9L 6B/6BT/6BTA Cummins diesel engines.
6.7 cummins engine serial number location series#
The original B Series was updated with 24 valves and an electronic engine management system to become the ISB in 1998.Įngine Specifications Engine Specifications Also specified is a deep-skirt engine block and extra-strong connecting rods. It uses a gear-drive camshaft for extra reliability. Įvery Cummins powered Dodge Pickup (since initial production in 1989) has come equipped with a turbocharger. The engine was first manufactured in Rocky Mount, North Carolina, and other plants were later added in Mexico, Brazil, Turkey, and Darlington, UK. It was also set apart by the use of a shallow one-piece head, requiring closer tolerances than in other Cummins products. The B-series features engine bores machined directly into the block (rather than the wet liners used on earlier Cummins engines). 6.3 Mechanical Injection with Electronic Timing and Common Rail Pressurization.6.2 Mechanical Injection with Electronic Timing.6.1 Mechanical Injection with Mechanical Timing.Since its introduction, three generations of the B series engine have been produced, offered in both inline-four and inline-six configurations in multiple displacements. In the automotive industry, it is best known for its use in school buses, public service buses (most commonly the Dennis Dart) in the United Kingdom, and Dodge/Ram pickup trucks. In production since 1984, the B series engine family is intended for multiple applications on and off-highway, light-duty, and medium-duty. The Cummins B Series is a family of diesel engines produced by American manufacturer Cummins. 2 (B-Series) or 4 (ISB, QSB) Valves/CylinderĬommon rail High pressure Direct injection, symmetrical combustion chamber with 7-hole injectors
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