Description
Genuine OEM remanufactured high-pressure common rail fuel pump from Cummins. The 5398557RX delivers precise fuel pressure to the common rail system in Cummins ISB 6.7L engines, ensuring efficient combustion and reliable power output. This pump is factory remanufactured to OEM specifications for 2010–2022 model year applications.
Signs You Need a New High-Pressure Fuel Pump
- Loss of power or poor acceleration under load
- Hard starting or extended cranking times
- Engine misfires, rough idle, or surging
- Fault codes related to fuel rail pressure (low rail pressure, P0087, P0088)
Specifications
| Manufacturer | Cummins |
|---|---|
| Part Number | 5398557RX |
| Condition | Remanufactured |
| Part Type | High-Pressure Common Rail Fuel Pump |
| Engine Compatibility | Cummins ISB 6.7L (2010–2022) |
| OEM Supplier | Bosch |
| Weight | 19.8 lbs |
| Package Dimensions | 12.5 x 8.75 x 8.5 in |
Cross References
This part replaces or is equivalent to the following part numbers:
- Cummins: 5398557, 5398557NX, 4983416, 4983416RX, 4983416NX
- Bosch: 0445020300, 0445020113, 0986437370
Applications
This high-pressure fuel pump fits Cummins ISB 6.7L engines found in:
- 2010–2022 Ram 2500 / 3500 (6.7L Cummins Turbo Diesel)
- 2010–2022 Ram 4500 / 5500 Chassis Cab
- Medium-duty commercial vehicles equipped with ISB 6.7L
Important Installation Note: Before installing a replacement high-pressure fuel pump, inspect all fuel lines, fuel rails, and injectors for metal debris or contamination. Installing a new pump into a contaminated system may cause premature failure. Identify and correct the root cause of the original pump failure before installation.
Verify your engine serial number and configuration before ordering to confirm fitment.
