Cummins Inc. has built its 2 millionth diesel engine for Chrysler’s Ram truck brand in what is being billed as the latest milestone in a corporate relationship that has gone on for decades.
The 2 millionth engine received a special coat of “Cummins Red” paint on the valve cover and will tour the U.S. as a promotional item rather than going into service in a Ram 3/4- or 1-ton truck.
Cummins has helped develop the engine from humble beginnings into a masterpiece of powertrain technology. For 2013, the Cummins 6.7-liter inline-6 engine is capable of producing a scary 850 lb-ft of torque yet has a longest-in-class 15,000-mile oil drain interval.
Cummins diesel engines first appeared in Ram trucks back when they were still known as Dodge Rams in 1989, when the legendary 5.9-liter 12-valve inline-6 turbodiesel launched with 160 horsepower an 400 ft-lbs of torque. Through the years, the engine gained 800 cubic centimeters of displacement, doubled its torque rating and valve count, and became the engine of choice for Ram Heavy Duty models, with a take rate of 80% among Heavy Duty customers, according to a Ram press release.