5.9L vs. 6.7L Cummins Comparison
Comparing the 5.9L & 6.7L Cummins
The table below compares the 5.9 L 12-valve, 5.9 L 24-valve ISB, & 6.7 L Cummins engines.
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
|
408 ci, 6.7 liters
|
Compression Ratio: |
17.0:1
|
16.3:1, 17.2:1*
|
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
|
350 HP @ 3,013 RPM
|
Peak Torque: |
400 - 440 lb-ft @ 1,600 RPM
|
460 - 610 lb-ft @ 1,600 RPM
|
650 lb-ft @ 1,500 RPM w/auto trans
610 lb-ft @ 1,500 RPM w/manual trans |
*High output version has a compression ratio of 17.2:1.