12v vs 24v vs 6.7L

Related Topics:

5.9L Cummins 12v

5.9L Cummins 24v

6.7L Cummins

Cummins Timeline

Dodge Diesel Buyers Guide

 


Return to Cummins Diesel Specs.

 

Cummins Diesel Comparison

 

 

 

 

 

Cummins has provided three engines to Chrysler for use in their heavy duty Ram pickup line, the 5.9L 12v, the 5.9L 24v, and the 6.7L 24v. Though all three engines are based on the B series platform, their similarities vary considerably. Please enjoy this comparison between the engines that have been offered in Ram model pickups from 1989 to current.

 

 

5.9L 12-valve

5.9L 24-valve ISB

6.7L ISB

Configuration:

Inline 6 cylinder

Inline 6 cylinder

inline 6 cylinder

Displacement:

359 ci, 5.9 liters

359 ci, 5.9 liters

409 ci, 6.7 liters

Compression Ratio:

17.0:1

16.3:1, 17.2:1 (HO)

17.3:1

Bore:

4.02 inches

4.02 inches

4.21 inches

Stroke:

4.72 inches

4.72 inches

4.88 inches

Turbocharger:

Holset Turbocharger

Holset Turbocharger

Variable geometry turbocharger

Valvetrain:

12 valve (2v per cyl), solid lifter camshaft

24 valve (4v per cyl), solid lifter camshaft

24 valve (4v per cyl), solid lifter camshaft

Injection System:

Bosch VE injection pump (89-93), Bosch P7100 injection pump (94-98).

Electronically controlled Bosch VP44 injection pump, Bosch high pressure common rail system for 2003.

Electronically controlled Bosch high pressure common rail.

Oil Capacity:

11 quarts

10 quarts

12 quarts

Peak Horsepower:

160 - 215 HP @ 2,500 RPM

235 - 325 HP @ 2,900 RPM

Up to 385 hp w/ auto trans (2013).

Peak Torque:

400 - 440 lb-ft @ 1,600 RPM

460 - 610 lb-ft @ 1,600 RPM

800 to 850 lb-ft w/ auto trans (2013).