Ram Truck and Cummins are celebrating the 25-year anniversary of their combination of truck engineering and diesel powertrain design.

 “Ram and Cummins are names synonymous with power, quality and durability. We’ve enjoyed a successful relationship and remained leaders in the diesel pickup market for 25 years,” said Reid Bigland, President and CEO — Ram Truck Brand, Chrysler Group LLC. “The numbers don’t lie. Backed by a Cummins engine, our Ram Heavy Duty is King of the Hill with 30,000 lbs. of towing capacity – three tons more than the closest competitor and our flagship Chassis Cab trucks hit Gross Combined Weight Ratings of up to 37,500 lbs.”
 
When first introduced in 1989, the Dodge Ram 3500 with the 5.9-liter Cummins Turbo Diesel engine produced 160 horsepower and 400 lb.-ft. of torque. Today’s 6.7-liter Cummins Turbo Diesel available in the Ram 2500 and 3500 Heavy Duty pickups and Ram 3500, 4500 and 5500 Chassis Cab trucks delivers up to  385 horsepower and a ground shaking 850 lb.-ft. of torque – more than any competitor.
 
“The Cummins and Ram Truck partnership has created a legendary package over the last 25 years and we appreciate their continued loyalty to Cummins," said Dave Crompton, Cummins Vice President and General Manager – Engine Business. "This commitment to our partnership allows us to focus on delivering best-in-class performance, reliability, and durability for the heavy-duty pickup market. The Cummins and Ram brands continue to provide a terrific combination for our customers.”
 
The 6.7-liter Cummins Turbo Diesel I-6 is available in three versions. The first version is paired with Ram’s segment exclusive six-speed manual transmission, which features a wear-compensating clutch for lifetime like-new performance and a dual-trunion shift tower to accommodate a compact shift pattern. This combination delivers 350 horsepower at 2,800 rpm and 660 lb.-ft. of torque at 1,400 rpm.
 
The second option matches the Cummins to the 68RFE six-speed automatic transmission. The diesel engine cranks out 370 horsepower at 2,800 rpm with an unsurpassed in ¾-ton trucks 800 lb.-ft. of torque at 1,600 rpm.

Finally, the 6.7-liter Cummins High-Output Turbo Diesel I-6 for Ram 3500 is paired with the Aisin six-speed automatic transmission (AS69RC), leaving no doubt to Ram Heavy Duty’s capability. In addition to 385 horsepower at 2,800 rpm, the most powerful Cummins generates best-in-class torque of 850 lb.-ft. at 1,700 rpm.

All Ram Heavy Duty and Chassis Cab trucks equipped with the Cummins engine benefit from an advanced cooling system. A high-efficiency fan, dual radiators, dual transmission coolers and a charge air cooler provide impressive heat-rejection capacity to align with best-in-class Gross Combined Weight Rating (GCWR). Lower operating temperatures deliver unsurpassed performance, durability and lower operating costs.