DEF Pump Fits Cummins ISX X15 Replaces 4387304RX 4387304 2871879 | FleetRun FR-AFTR108

Part Number FleetRun: FR-AFTR484 Cross Reference Part Number Cummins: 4387304 / 2871879 / 4387304RX / 2871879D Specifications 10 Pin Rectangular Electrical Connection 3 Mounting Bolt Holes 1 Inlet / DEF Supply Fitting 1 Outlet / DEF Return Fitting 1 Backflow DEF Fitting 12V Supply What s Included DEF Filter Lubricant Tube Fitment & Compatibility Engines Cummins ISX Cummins X15 Vehicles Kenworth T680 Peterbilt 389 Peterbilt 579 and more Warranty 6 months or 50 000 Miles From Purchase (whichever comes first) FAQs How do you know if your DEF pump is bad? Signs of a faulty DEF pump include warning lights or error codes on your dashboard reduced engine performance inability to start or complete regeneration cycles Urea fluid leaks and strange noises. If you notice any of these signs consult a mechanic for diagnosis and repairs to ensure compliance with emissions regulations and optimal vehicle performance. How long should a DEF pump last? The lifespan of a DEF pump varies depending on factors like quality operating conditions and maintenance. Typically a well-maintained pump can last between 300 000 to 750 000 miles or more. Maintenance includes following manufacturer guidelines using quality DEF fluid preventing contamination proper storage and regular system checks. It s crucial to address any issues promptly to avoid further damage and consult a mechanic if needed. Following these practices can extend the pump s lifespan and ensure optimal vehicle performance.