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Cummins Ram 1500

Cummins V-6 & V-8

 

 

 

Late in 2007, when the economy was booming, Cummins and Dodge teamed up to offer diesel engine options in the 1/2 ton Ram 1500. At the time, Ford and General Motors had shown similar interest, and it seemed that all three automakers were going to offer turbodiesels in their 1/2 ton pickup models. Unfortunately, when the economic crisis set in, these plans were quickly ditched as the cash strapped companies could not longer justify the cost of implementing such offers. Chrysler was no exception, and so the 4.2L Cummins V-6 and 5.6L Cummins V-8 remained mere concepts beyond the grasp of prospective buyers. A 1/2 ton diesel has clearly become a feasable venture once again, as Ram began offering a diesel option for their 2014 model year Ram 1500. However, Cummins is not involved in the new Ram 1500. In fact, Cummins will be supplying a 5.0L V-8 to Nissan, while Ram Trucks (formerly Dodge) is offering an Italian built VM Motori 3.0L V-6. This crazy turn of events has blindsided many market spectators, and in case you're wondering, here is what Dodge previously missed out on:

 

4.2L Cummins Diesel V-6

Configuration:

V6, 90-degree

Displacement:

4.2 liters, 256 cubic inches

Head Material:

aluminum heads

Block Material:

iron block

Bore:

3.70 inches x 3.94 inches

Turbocharger:

Variable geometry turbocharger (VGT)

Fuel System:

Direct injection, high pressure common rail.

Engine Weight:

663 lbs.

Horsepower:

270 hp @ 3,800 RPM (estimated)

Torque:

420 lb-ft. @ 1,700 RPM (estimated)

Intended Applications:

1/2 ton Dodge Ram 1500, Dodge Durango

Fuel Mileage (est):

22.1 mpg combined city & highway driving (44% improvement). 25 mpg highway, 20.3 mpg city.

Valvetrain:

single overhead cam (SOHC) 24-valve

 

5.6L Cummins Diesel V-8

Configuration:

90 degree V8

Displacement:

5.6 liters, 342 cubic inches

Head Material:

aluminum heads

Block Material:

Iron block

Bore x Stroke:

3.70 inches x 3.94 inches

Turbocharger:

single variable geometry turbocharger (VGT)

Fuel System:

High pressure common rail

Engine Weight:

788 lbs. (approx)

Horsepower:

325 hp @ 4,000 RPM (estimated)

Torque:

500 lb-ft. @ 2,000 RPM (estimated)

Intended Applications:

1/2 ton Dodge Ram 1500, Dodge Durango, possible baseline engine for 2500 & 3500 Ram

Fuel Mileage (est):

24.6 mpg highway, 19.8 mpg city (49% improvement), 21.7 mpg combined.

Valvetrain:

Single overheard cam (SOHC), 32 valve

 

There was talk that the 5.6L V-8 could even become the standard engine option on the 2500/3500 Ram, with the larger inline 6 still being an option. Cummins has earned a reputation of durability in their engine designs, and we'd expect to that, had these engines gone into production, the prototype trucks showed excellent driveability and fuel economy capability. The 1/2 ton Cummins powered Ram is currently on an indefinite hold now that Chrysler has chosen a new engine supplier.