What Are the Specs of a Cummins Diesel Engine?


Quick Answer

A Cummins diesel engine used in a pickup truck or similar vehicle in 2015 produces between 325 and 385 horsepower and up to 900 foot-pounds of torque. However, Cummins produces several models of diesel engine, meaning that many specifications are dependent on the exact engine and vehicle in question.

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Full Answer

Cummins diesel engines are commonly used in heavy-duty pickup trucks that are intended to tow heavy loads. One of the most famous examples of this type of truck is the Dodge Ram pickup that used a 5.9-liter inline-six Cummins B-series diesel producing 160 horsepower and 400 foot-pounds of torque. The 2016 Ram 2500 and 3500 trucks use a 6.7-liter, six-cylinder Cummins turbocharged engine that produces 900 foot-pounds of torque and 385 horsepower when mated to a heavy-duty Aisin automatic transmission. The engine's output is downgraded for manual transmission trucks, producing only 660 foot-pounds of torque due to the reduced torque capacity of the manual transmission.

Cummins engines intended for use in heavy-duty trucks, construction equipment and military vehicles often produce much more power than those used in pickup trucks. For example, the ISX15 engine intended for use in Class B trucks can produce as much as 605 horsepower depending on the specific application. One of the most powerful Cummins engines is the defense-oriented V908, a powerful diesel V8 design that can produce up to 800 horsepower and 2362 foot-pounds of torque.

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