5.9L Cummins Specs:

Displacement:

359 cubic inches, 5.9 liters

Configuration:

Inline 6 cylinder

Firing Order:

1-5-3-6-2-4

Compression Ratio:

16.3:1, 17.2:1 (high output version)

Bore:

4.02 inches

Stroke:

4.72 inches

Injection:

Direct Injection
• 1998.5 - 2002: Electronically controlled Bosch VP44 rotary injection pump.
• 2003-2007: Bosch high pressure common rail injection.

Aspiration:

Holset turbocharger

Valvetrain:

OHV, 4 valves per cylinder, solid lifter camshaft

Oil Capacity:

12 quarts

Weight:

Approx. 1,150 lbs

*Horsepower:

235 - 325 HP @ 2,900 RPM

*Torque:

460 - 610 lb-ft @ 1,600 RPM

Governed Speed:

3,200 RPM

Years of Operation:

1998.5 - 2007

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Output varies with model year.

 

5.9L Cummins ISB Info

• ISB is the acronym for Interact System B.
• Assembled at the Cummins Columbus, Indiana assembly plant; the same city in which "Cummins Engine Company" was founded.
• All fuel systems on the 24v Cummins were electronically controlled, including the years that the it used a mechanical injection pump.
• Does not use glowplugs, but rather a heater grid mounted beneath the air horn.
• The VP44 injection pump failure rate was much higher than that of the P1700 that was used on the 6BT (12v).
• Used forged steel connecting rods for strength.
• The 5.9L ISB made Ward's 10 Best Engines list in 2004.
• Power output on automatic equipped Cummins powered Rams was slightly downrated for the manual transmission equipped Rams from 1998 - 2001.
• Production of the 5.9L Cummins ended completely in June 2009.

 

5.9L 24-valve ISB