The First First-Gens: The Story You Haven’t Heard
On the eve of the release of the Cummins-powered Dodge Ram, Cummins was every bit as nervous as Chrysler was.
Cummins
1989-1993 5.9L Cummins
The original 6BT—the engine that revolutionized the diesel pickup segment.
1994-1998 5.9L Cummins
The engine that gave us the P-pump, the '94-'98 12-valve Cummins.
1998.5-2002 5.9L Cummins
Introduction of the 24-valve cylinder head and electronically controlled VP44.
2003-2007 5.9L Cummins
Cummins’ last 5.9L boasts high-pressure common-rail injection and a stronger block.
2007.5-2023 6.7L Cummins
Bigger displacement, more torque and modern emissions equipment.