Cummins diesel engines are terrific ... with a few exceptions. There were a few years when their quality just wasn't up to ...

The specifications were impressive back in the late 80s and only improved to the point that when the 5.9 Cummins was replaced in 2007 with the 6.7-liter, it offered an additional 210 pound-feet of ...

5.9-Liter Cummins: Second Generation (Late 12-Valve, 1994-1998, P7100 Injection Pump) In 1994, the 5.9-liter Cummins was similar in many ways to the 1989-1993 engine.

Nearly 40% of the earlier Cummins 5.9-liter components made it to the new 6.7-liter diesel. Both featured common-rail direct injection, but the 5.9 has a Holset HE351CW fixed geometry turbocharger.

Early diesel Rams ('89 to '91) came with a mechanical VE rotary fuel injection pump that really wasn't so great for tuning. But from 1994 to 1998, Cummins threw on the Bosch Bosch P7100 mechanical ...

The VP-pump ISB was discontinued after the 2002 model year. However, a year before it rode into the sunset, Dodge offered a high-output version equipped with several improvements, including a ...

Cummins Inc. recently celebrated the second anniversary of the Cummins Water Works program, reporting it recorded 5.9 billion gallons in annual water benefits in 2022 through projects around the ...

Cummins Inc. recently celebrated the second anniversary of the Cummins Water Works program, reporting it recorded 5.9 billion gallons in annual water benefits in 2022 through projects around the world ...

A first-gen 5.9 Cummins will set you back a pretty penny today, but the engines weren't perfect, with a number of serious problems showing up over the years.