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

For starters, the newer Cummins 6.7-liter shares many of its components with the 5.9-liter, making the two engines nearly identical from an engineering perspective.

We show you some new fabricated motor mounts for the 1996-1998 12 valve Cummins turbo diesel.

Today, sixteen years after it was discontinued, the 5.9-liter Cummins is arguably the most legendary diesel engine ever produced on American soil.