Product Description
Cummins 5297641 — Fuel Rail Pressure Sensor (FRP)
MPN: 5297641 | Also Known As: rail pressure sensor, fuel pressure sensor | Replaces: 3949988 | Cross-Refs: 3974092, 5260246, Bosch 0 281 006 325 (0281006325)
Why This Part
- ✓ OE sensor used to monitor high-pressure common-rail fuel pressure.
- ✓ Direct-fit for 2003–2007 Ram 5.9L ISB (common-rail).
- ✓ Restores proper starting, power, and fuel economy when the FRP sensor fails.
- ✓ Genuine Cummins electronics and sealing for durability.
Quick Specs
| Type | Fuel rail pressure sensor (FRP) |
|---|---|
| OE Part # | 5297641 (replaces 3949988) |
| Common Cross-Refs | 3974092, 5260246, Bosch 0281006325 |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2007 | Ram 5.9L ISB (24V Common-Rail) | Ram 2500/3500 |
Industrial/Off-Highway: Used on various ISB/QSB platforms (incl. some Tier 3 6.7 applications). Always confirm by ESN before ordering.
Often Paired With
- FRP/Map Sensor Pigtail: Fleece FPE-HAR-RP-PT (’03–’12 connector repair/upgrade)
- Connector Repair Kit: Mopar FRP connector kit (’03–’12)
- Scan tool to clear codes after replacement
What’s In The Box
- (1) Genuine Cummins Fuel Rail Pressure Sensor (5297641)
Install Tips
- Relieve rail pressure; keep the area spotless to avoid contamination.
- Use proper torque; do not overtighten. Reconnect harness until it clicks.
- Clear DTCs and verify commanded vs. actual rail pressure after install.
FAQ
WILL THIS FIT MY 2003–2007 5.9L CUMMINS RAM?Yes—5297641 is the OE fuel rail pressure sensor for 2003–2007 5.9L ISB common-rail Ram 2500/3500 (verify by VIN/ESN).
DOES 5297641 REPLACE 3949988?Yes—5297641 supersedes/replaces Cummins 3949988. Alternate IDs seen include 3974092, 5260246, and Bosch 0281006325.
WILL THIS WORK ON 6.7L APPLICATIONS?Some industrial ISB/QSB 6.7 engines use this sensor. Automotive Ram 6.7L typically uses different part numbers—confirm by ESN before ordering.
WHAT SYMPTOMS INDICATE A BAD FRP SENSOR?Hard/no start, low power, poor fuel economy, erratic rail pressure readings, and a check-engine light are common indicators.
IS THIS A GENUINE CUMMINS SENSOR?Yes—OE Cummins 5297641 for proper fit, calibration, and durability.
