Cummins Diesel Specs

5.9L 24-valve Cummins ISB

 

5.9L Cummins 24-valve SpecificationsIn 1998, the BT 5.9 was redesigned as a 24 valve engine to updated emission requirements. ISB stands for Interact System B. The ISB featured a Bosch VP44 rotary injection pump until 2003, when the injection system was upgraded to a Bosch high pressure common rail fuel injection system, which increased power output. In 2001, a high output (HO) version of the ISB became available, which slightly increased the ouput of manual transmission equipped trucks. A 610 version of the ISB became available which pushed torque to 610 lb-ft. Well known for its low speed torque, the Cummins 5.9 ISB has an advantage over V8 diesel engines in the light duty truck market.

5.9L Cummins ISB Specifications:

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:
10 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
*Varies with model year.

5.9L Cummins ISB Info:

  • ISB is the acronym for Interact System B.
  • The 5.9L ISB made Ward's 10 Best Engines list in 2004.
  • Power output on automatic equipped Cummins powered Rams was slightly downrated from the manual transmission powered Rams from 1998 - 2001.

 

5.9L 24-valve ISB

5.9L Cummins ISB Specs

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  • Related Topics:
    • Cummins Diesel Timeline

 

 

 

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