HD Diesel Supply » Bosch

For the 2003 model year, the 5.9L 24 Valve Cummins was introduced with Bosch high pressure common rail fuel injection system, again increasing power output to 305 HP 555 ft-lbs. See our 5.9L Cummins products below!

2004.5-2007.5 5.9L Cummins introduced the 325HP version of the famous 24 Valve 5.9L Engine. A gain of 20HP and 55 lb-ft. over its earlier version of the 5.9L Cummins in 2003-2004.5.

6.7L is the latest version of the B Series. It is currently the largest straight-six engine produced for a light duty truck. It produces 350 horsepower and 650 pound-feet in the 2007.5 and newer Dodge 2500/3500 pickup trucks.

RPO LB7 (engine code "1") was first introduced in 2001 and continued until early-2004. It is a 32-valve design with high-pressure common-rail direct injection and an experimental composite design cylinder head. SEE LB7 PRODUCTS BELOW