1989 5.9L Cummins B Series is a family of American straight-6 diesel truck and industrial piston engines that are manufactured by Cummins. The B Series is known for the 5.9 liters (360.0 cu in) straight-six motors increasing to the 6.7L 24 V Cummins in 2007.5.
Class-Exclusive 3.0L EcoDiesel V6 delivers 240 horsepower and 420 lb-ft of torque at 2,000 rpm. The 3.0L EcoDiesel engine also delivers Best-in-Class fuel economy as efficient as 8.0 L/100 km (35...More Details »
Class-Exclusive 3.0L EcoDiesel V6 delivers 240 horsepower and 420 lb-ft of torque at 2,000 rpm. The Jeep Cherokee is the only SUV in the industry to offer a diesel engine. The 3.0L EcoDiesel engine...More Details »
6.7L 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 and 650 pound-feet in the 2007.5 and newer Dodge 2500/3500 pickup trucks.
For the 2003 model year, the 5.9L 24 Valve Cummins was introduced with Bosch high pressure common rail fuel injection system, again increasing power output to 305 HP 555 ft-lbs.
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5.9L 12V Cummins intercooled, turbocharged “B” series diesel had a cast iron block and head, and used high-pressure mechanical direct injection with 2 overhead valves per cylinder with roller...More Details »
The overhead-valve Cummins engine was a hefty 359 cubic inches (5.9 liters); it only had six cylinders, for easier servicing. Horsepower was rated at 160 hp @ 2,500 rpm in 1989, with torque of 400 lb-ft at 1,700 rpm.