Description
This is an aftermarket engine oil pressure sensor kit (PAI 050665) for Cummins ISB, ISBE, and QSB diesel engines — the 5.9L and 6.7L Cummins family produced 2003–2016. The kit ships with the sensor plus its 121210 (Cummins 3678912) sealing O-ring. 1-pin rectangular connector, M14x1.5 thread. Direct replacement for Cummins 4076930.
Signs You Need a New Oil Pressure Sensor
- Check-engine or low-oil-pressure light with no actual loss of pressure
- Erratic or stuck oil-pressure gauge />
- Engine derate, no-start, or cranks-but-won’t-start with oil-pressure-circuit fault codes
- Oil weeping or seepage at the sensor port
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 050665 (Cummins 4076930) |
| Part Type | Engine Oil Pressure Sensor Kit (with O-ring) |
| Connector Shape | Rectangular |
| Pin Count | 1 |
| Thread Size | M14 x 1.5 |
| Overall Length | 2.55″ |
| O-Ring (included) | Cummins 121210 / 3678912 |
| Color / Finish | Black / Silver |
| Engine Compatibility | Cummins ISB, ISBE, QSB (5.9L & 6.7L) |
Kit Includes
- Oil pressure sensor — PAI 050665 (Cummins 4076930)
- Sealing O-ring — Cummins 121210 (3678912)
Cross References
This sensor kit replaces or is equivalent to the following part numbers:
- Cummins: 4076930
- PAI Industries: 050665
Applications
This sensor fits the following Cummins engines:
- Cummins ISB 5.9L (2003–2007)
- Cummins ISB 6.7L (2007.5–2016)
- Cummins ISBE (Euro)
- Cummins QSB (industrial / off-road)
Representative vehicles and equipment using these engines:
- Dodge / Ram 2500, 3500, 4500, 5500 with 5.9L / 6.7L Cummins (2003–2016)
- Freightliner M2 106, M2 112 with ISB 6.7L
- International DuraStar / 4300 with ISB 6.7L
- Kenworth T270, T370, Peterbilt 325, 330, 337, 348 with ISB 6.7L
- Komatsu and other off-road equipment running QSB
Replace the included O-ring at every install — it is single-use. Verify the OEM number on the existing sensor before ordering. The 4076930 (M14x1.5, rectangular 1-pin) is distinct from older 5.9L sensors and from the ISB 6.7L combo MAP/IAT sensor (Cummins 2897332 / PAI 050624).
