It's vital for your pickup truck to be equipped with a powerful and dependable engine that's capable of tackling even the toughest obstacles throughout your workday. To help guide you through your research, the experts at Courtesy Chrysler Dodge Jeep Ram in Danville, IL, put together this engine comparison guide comparing two popular engine options: the Ram 6.7L I6 Turbo-Diesel High Output Cummins® and the Chevy 6.6L V8 Turbo-Diesel Duramax®.

If you already know the Ram 6.7L Cummins® will help you get the job done, browse our online inventory to view all Ram trucks for sale, then be sure to schedule a test drive with your favorite model. To have your questions answered, or for more information, call our Courtesy team at (217) 806-0040 or contact us online through our easy form.

6.7L Cummins® vs. Chevy 6.6L Duramax®
Specs

Both the Ram 6.7L Cummins® and Chevy 6.6L Duramax® diesel engines are well-known for their superior performance and reliability on the road, but which one will best provide the power and capability you need for your workday? Take a look below to compare these two engines:


Chevy 6.6L V8 Turbo-Diesel Duramax® Performance Specs Include: HORSEPOWER
445 HP
TORQUE
910 lb.-ft.
MAX. TOWING CAPACITY
23,100 lbs.
MAX. PAYLOAD CAPACITY
6,112 lbs.

Ram 6.7L I6 Turbo-Diesel High Output Cummins® Performance Specs Include: HORSEPOWER
400 HP
TORQUE
1,000 lb.-ft.
MAX. TOWING CAPACITY
35,100 lbs.
MAX. PAYLOAD CAPACITY
6,570 lbs.

6.7L Cummins® vs. Chevy 6.6L Duramax®
Features

Explore below to discover key features that come with each Ram diesel vs. Chevy diesel engine!

Chevy 6.6L Duramax® features:

  • B20-diesel compatible
  • 3.73 gear ratio
  • Exhaust brake
  • Engine block heater
  • Capped fuel-fill
  • External engine oil cooler
  • External transmission oil cooler

Ram 6.7L High Output Cummins® features:

  • Capless fuel-fill 
  • Diesel exhaust brake
  • 220-amp alternator
  • Active noise-control system 
  • Heavy-duty engine cooling system
  • Dual 730-amp maintenance free batteries
  • Electronically controlled throttle

6.7L Cummins® vs. Chevy 6.6L Duramax®
Why the Ram Cummins®?

Overall, the 6.7L I6 Turbo-Diesel High Output Cummins® engine from Ram takes the cake when it comes to the best towing and payload abilities. You simply can't beat the maximum 35,100 lbs. of towing capacity and 6,570 lbs. of payload that this Ram engine can handle. This engine also has a higher torque rating than the Chevy 6.6L Duramax® engine. For the most power, towing, and hauling, choose Ram.

6.7L Cummins® vs. Chevy 6.6L Duramax®
Ram Trucks Available with the 6.7L Turbo-Diesel I6 High Output Cummins®

The following Ram models can be configured with the 6.7L Turbo-Diesel I6 High Output Cummins® engine:

2019 Ram 3500

2019 Ram 3500

2019 Ram Chassis Cab

The new 2019 Ram Chassis Cab

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