The Cummins 5.9-liter diesel engine has powered Ram trucks since 1989. It went through a few changes over its lifespan, but ...

If you're sold on the 5.9 Cummins (and fair enough, it's a beast when it's right), aim for the 2003 to 2007 model years. These trucks use the high-pressure, common-rail injection system, ditching ...

A cracked engine block can be a disastrous problem that renders your car completely useless, but one Cummins block in ...

The first RAM with a Cummins engine under the hood was launched in 1989 and has continued to evolve, now in it's fifth generation. In 2003, the popular heavy-duty truck offered the Cummins third ...

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.

The mighty 5.9-liter got its first significant update in 1994 when the second generation of Ram trucks was introduced. Though it featured the same block, conrods, and 12-valve cylinder head as the ...