Product Description
Cummins 5297640 — Genuine Fuel Rail Pressure Sensor
MPN: 5297640 | Also Known As: FRP sensor, rail pressure transducer | Common Cross-Refs (ID): Cummins 5261237, 4937283, 4930429; Mopar 68002436AA/AB/AC/AD; Bosch 0 281 006 327
Restore accurate rail pressure feedback on your common-rail Cummins. The genuine Cummins 5297640 fuel rail pressure sensor is the OE unit for 2007.5–2012 Ram 2500/3500/4500/5500 6.7L and select ISB/QSB 6.7 engines. Designed to OEM signal accuracy and sealing specs for reliable drivability and clean diagnostics.
Features & Benefits
- OE signal accuracy for precise injection control and smoother operation.
- Direct-fit to the rear of the high-pressure fuel rail; plug-and-play 3-pin connector.
- Fixes common symptoms such as hard starts, low power, excessive smoke, and
P0193/P0191faults (after wiring/line checks). - Built to Cummins specs for durability in heat, vibration, and fuel exposure.
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2007.5–2012 | 6.7L ISB (Common-Rail) | Ram 2500/3500 |
| 2008–2012 | 6.7L ISB (Cab & Chassis) | Ram 4500/5500 |
Industrial/Off-Highway: Cummins catalogs 5297640 as a Pressure Sensor used primarily on EPA13 6.7L ISB/QSB engines—verify by ESN for equipment engines.
Compatibility Notes:
- 2013–2018 pickups typically use Cummins 4306993 / Mopar 68210175AA instead (some cab-&-chassis overlap—confirm by VIN/ESN).
- 2003–2007 5.9L uses different sensors and is not covered by 5297640.
Specifications
- Type: Fuel rail pressure sensor (transducer)
- OE Part Number: 5297640
- Connector: 3-pin, duty to ECM (5V supply/ground/signal)
- Thread: M18 x 1.5 (knife-edge/metal seal to rail)
- Location: End/rear of high-pressure fuel rail
- Quantity Required: 1 per engine
Often Paired With
- Fuel rail pressure relief valve: Cummins 4938005 / Mopar 68005441AA (Bosch 1110010013)
- Fuel Control Actuator (FCA/MPROP): Mopar 68005241AA (on CP3)
- Rail pressure sensor pigtail: Fleece FPE-HAR-RP-PT (repair connector)
What’s In The Box
- (1) Genuine Cummins Fuel Rail Pressure Sensor (5297640)
Installation Tips
- Depressurize fuel system; keep the port clean to prevent contamination.
- Inspect harness and repair pigtail if brittle or oil-soaked.
- Torque to spec; clear codes and verify commanded vs. actual rail pressure.
- If codes persist, smoke-test for leaks and verify FCA and relief valve operation.
FAQ
WILL THIS FIT MY 2007.5–2012 6.7L CUMMINS RAM?
Yes—5297640 is the OE rail pressure sensor for 2007.5–2012 Ram 2500/3500 and many 4500/5500 cab-&-chassis applications.
WHAT ABOUT 2013–2018 TRUCKS?
Most 2013–2018 applications use 4306993 / 68210175AA. Some cab-&-chassis overlap exists—confirm by VIN/ESN.
WHERE IS THE SENSOR LOCATED?
At the end/rear of the fuel rail on the passenger side.
WHAT TROUBLE CODES CAN A BAD SENSOR TRIGGER?
Commonly P0193 and sometimes P0191, along with drivability issues (hard start, low power).
IS THIS A GENUINE CUMMINS PART?
Yes—OE Cummins 5297640 with factory calibration.
