FASS DDRP Fuel Pump For 2003-2004 Cummins 5.9L (Diesel Direct Replacement Pump) Fass DDRP 04 requires 30 minutes or less installation time Fass DDRP 04 provides a 33% increase in fuel delivery rate over the OEM pump design DDRP 04 is protected by a 4 year Warranty The DDRP 04 uses the same wire harness connector as the OEM pump for fast and easy installation The Dieselstore.com is an authorized Fass Dealer, so get the maximum out of your product and warranty. We have specialists that can help with advice and installation.