Cummins FAQ
Frequently Asked Questions about the 5.9L & 6.7L Cummins Engines
What engine family do the 5.9 liter & 6.7 liter Cummins belong to?
The 5.9 & 6.7 liter Cummins engines belong to Cummins B-series line of engines. The B-series line of engines includes the following inline 4 & inline 6 engines: 6BT 5.9 L(12-valve), 5.9 L ISB, 3.9 L 4BT, and the B 6.7 L ISB.
How many generations of the Cummins diesel have been produced?
1st gen, 2nd gen....SO ON
How long has the Cummins been used in Dodge trucks?
The Cummins found its way into Dodge trucks in 1989. The 5.9L & 6.7L Cummins have been the diesel engine of choice for Dodge ever since.
What does ISB stand for?
ISB stands for Interact System B. Interact System describes the electronic controls system introduced to the Cummins engine in 1998, when the mechanical 5.9 L 12-valve was replaced with the computer controlled 24-valve ISB. The B in ISB signifies that the engine is part of Cummins "B-series" line up.
Who is the founder of Cummins Engine?
Clessie L. Cummins is the founder of Cummins Engine Co. He founded it in 1919, when his company was producing small diesel engines. It was not actually until 1930 that Cummins designed & produced its first successful diesel engine.
Is the Cummins a light of medium duty engine?
The 5.9L & 6.7L Cummins platforms are those of a medium duty engine. 5.9L & 6.7L Cummins that appear in medium duty applications may feature different electronic controls & lower governed speeds, but the engine architecture is the same as engines used in light duty applications. The 5.9L ISB Cummins has rated for applications as high as 52,000 - 65,000 lbs (some documents state 52,000, while others state 65,000).
What is the B50 life of a 5.9L Cummins?
The Cummins ISB has a B50 life of 350,000 miles.
Cummins Generations:
Years Generation Significant Features 1989-1993 1st Generation 5.9L - 12 valve 5.9L
- VE mechanical injection pump
- Holset Turbocharger1994-1998 2nd Generation 5.9L - 12 valve 5.9L
- P7100 mechanical injection pump
- Holset Turbocharger1998.8-2002 2nd Generation 5.9L - 24 valve 5.9L
- VP44 mechanical injection pump
- Holset Turbocharger2003-2007 3rd Generation 5.9L - 24 valve 5.9L ISB
- Bosch High Pressure Common Rail, CP3 injection pump
- Holset Turbocharger2007.5-current 3rd Generation 6.7L - 24 valve 6.7L ISB
- Bosch High Pressure Common Rail, CP3 injection pump
- Variable Geometry Turbocharger (VGT)
- Diesel Particulate filter