VP44 Injection Pump
1998.5-2002 5.9L Dodge Cummins
If you're looking at this product page, it probably means you're in the same boat as many, and have a dead or dying VP44 injection pump. The factory injection pump that came standard on the 98.5-02 Dodge Cummins trucks could best be described as a Band-Aid, or temporary fix, while Bosch was in the process of producing the common rail injection pumps that would be featured on the 2003 and newer trucks. While the VP44 is not necessarily a bad pump, they do have the highest failure rate compared to any of the other pumps, and most of the issues stem from inadequate lift pump pressure.