Dodge was late to release diesel engines to power their light trucks in 1989. However, their competitive edge was the 5.9L Cummins 12-valve, the first turbo-diesel to appear in a 1-ton truck. The B 5.9 was later replaced by a 24-valve version of the 5.9L Cummins in 1998.
Cummins engines have become the primary choice as the engine for the Dodge Ram 1500 and other light trucks. These diesel engines different amounts of horsepower depending on the year. Cummins diesel engines are also quite simple in design which positively effects engine life over other brands of engines.
5.9 L 12-Valve ISB (Interact System B]
The first version of the Cummins diesel 5.9L was first introduced in 1984 marketed mostly to the commercial and equipment industry in the United States. Cummins light duty diesel engines were first used on light trucks in 1989.
Horespower ratings are not particularly important, though the 12-valve engine power is determined by the model year.
5.9 L 24-Valve ISB
The 5.9 24-valve Cummins diesel engine uses the popular Bosch high pressure common rail fuel injection system which increases power output for small trucks and affords excellnt economy. Horsepower peaks between 235-325 which depends on the model year as mentioned above. A turbocharger was added to increase workload.
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