Despite the favorable attributes, the 5.9L Cummins in this generation uses a VP44 injection pump (the weak link, if you will) known for lasting anywhere between 100,000 to 150,000 miles before it ...

The stock VP44 pump couldn't provide much more than 500 hp worth of fuel or turn higher than 4,000 rpm, so the decision was made to upgrade the 24-valve with a Scheid Diesel-built Bosch P-pump ...

Jasper Engines & Transmissions is remanufacturing the Bosch VP44 diesel injection pump. The pump was found on 1998-2002 Cummins B Series engines used in Dodge Ram pickups, Freightliner medium-duty ...