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Cummins 6BTAA5.9 Engine Overview
B-SERIES
Small engines - big possibilities.
Small, light and economical, Cummins B-Series engines include a direct fuel injection for a cleaner, quieter, more fuel-efficient performance and offer outstanding value in terms of installation, simplicity and servicing, with valve clearance checks not required until 2,000 hours twice the industry standard.
All the engines in Cummins B series perform well under severe duty cycles and offer excellent fuel consumption, substantial cooling capability, low noise, low weight, and high power output per liter, for first class reliability.
The B series engine family is intended for multiple applications on and off-highway, light-duty, and medium-duty. In the automotive industry, it is best known for its use in school buses, public service buses in the United Kingdom, and Dodge/Ram pickup trucks.
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.
5.9L
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. The 6BT used Bosch 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. 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.
Configuration | In-line, 6 cylinder, 4-stroke diesel |
Aspiration | Turbocharged(6BT) Turbocharged/Aftercooled (6BTA) |
Displacement | 5.9 L (359 in3) |
Bore & Stroke | 102 x 120 mm (4.02 x 4.75 in) |
Fuel System | Inline Injection Pump |
Horsepower | 130-205hp |
Application | Commercial, Industrial, Marine |
Production | 1984–1998 |
Camshaft drive | Gear driven |
Crankshaft | Forged steel, 7 main bearings |
System capacity with filter | 3.5 US gal (13 l; 2.9 imp gal) |
Cooling system | 6 US gal (23 l; 5.0 imp gal) coolant |
System capacity incl heater | 6.5 US gal (25 l; 5.4 imp gal) coolant |
Power output | 160 hp - 230 hp (172 kW) at 2500 rpm |
Torque | 400 - 440 lb⋅ft (597 N⋅m) at 1600 rpm |
Compression ratio | 17.5:1 |
Additional ratings may be available. Check with Qingbang.
