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  • 2017 Ram 1500 Diesel

Duramax vs. Cummins vs. Power Stroke

If you’re looking at the latest trucks and want the best diesel engine, you’ll probably find yourself considering the 6.7L Cummins Diesel I6, 6.6L Duramax L5P V8, and 6.7L Power Stroke V8. To compare Cummins vs. Duramax vs. Powerstroke options and how you might use them around Milwaukee and Madison, read on. We’ll help you answer the question “What’s better: Duramax, Powerstroke, or Cummins?”

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Cummins, Duramax, or Power Stroke: Specs

6.7L Cummins Diesel I6 6.6L Duramax L5P V8 6.7L Power Stroke V8
Displacement 408 cubic inches, 6.7 liters 403 cubic inches, 6.6 liters 409 cubic inches, 6.7 liters
Configuration I6 V8 V8
Compression Ratio 17.3:1 16.0:1 16.2:1
Horsepower 370 445 450
Torque 800 lb-ft 910 lb-ft 935 lb-ft

6.7L Cummins Engine in Ram 3500

Cummins Diesel Engine

Cummins made their first diesel engine close to 100 years ago, and it was designed for farm use — a lot has changed since then. The new 6.7L Cummins delivers a steady flow of power alongside reduced noise output. The strong yet light graphite iron engine block works to help cut down on fuel consumption without affecting power, and the engine is B20 biodiesel compatible.

It performs with a 16.21:1 compression ratio, features a Bosch high-pressure common-rail fuel system, and comes paired with a Holset HE351VE variable geometry turbocharger. You’ll find it in Ram trucks.

Ford's Power Stroke Diesel Engine

Power Stroke Diesel Engine

You’ll find the Power Stroke diesel engine in Ford trucks. It uses a large single turbocharger and smart exhaust brake function. It’s one of the most powerful diesel engines available, which might be why Ford trucks continue to deliver best-in-class specs for towing, payload, and other capability factors.

How does the Ford PowerStroke engine deliver such impressive performance? Aside from this engine options massive displacement, discerning drivers will notice its Pushrod OHV 32-valve cam-in-block valvetrain, and its 3.90 inch bore by 4.25-inch stroke specification.

6.6L Duramax Diesel Engine

Duramax Diesel Engine

The 6.7L Cummins and the 6.7L Power Stroke share the same displacement, while the 6.6L Duramax comes in last. In terms of power, it comes in just between the Cummins and the Power Stroke. Like those two engines, it is also B20 biodiesel compatible.

The Duramax Diesel engine is designed with its own set of unique features, designed to provide more of the power you need without compromising on fuel economy or longevity. These include an electronically-controlled variable-geometry turbocharger, a Venturi Jet Drain oil separator, and cold-start technology for peace of mind.

Our Ford, Chevrolet, and Ram Diesel Truck Inventory

Talk Cummins, Duramax, or Power Stroke with Badger Truck & Auto Group

Still trying to decide between Duramax or Cummins? Whether you’re leaning towards the Cummins, Powerstroke, or Duramax engine, you can count on the Badger Truck & Auto Group team to give you all of the information you’ll need to make the right choice. Check out our inventory of new commercial trucks to find a model with all the power you’ll need for your Chicago and Green Bay jobs.

If you need to find out more about the Cummins, Duramax, or Power Stroke, contact the experts at Badger Truck & Auto Group or visit your nearest location.

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