Description
PAI Industries 650657E oil pressure sensor — direct replacement for Detroit Diesel 23532797 (also 23511176) — for non-EGR Detroit Series 60 12.7 L and 14.0 L engines. The sensor reports engine oil pressure to the DDEC ECM, supporting gauge readout, low-oil warning, and protection-mode shutdown when pressure drops below threshold. 1/4-18 NPT thread with locking patch, 3-pin rectangular connector, 2.23 in overall length.
Signs You Need a New Oil Pressure Sensor
- Erratic, stuck, or zero reading on the oil pressure gauge
- Low oil pressure warning at idle when actual pressure is normal
- Engine derate or shutdown without confirmed low oil
- Check engine light with oil pressure circuit fault codes (SID 100 / SPN 100)
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 650657E |
| Part Type | Engine Oil Pressure Sensor |
| Engine Compatibility | Detroit Series 60 12.7 L and 14.0 L (non-EGR) |
| Connector | 3-Pin Rectangular |
| Thread Size | 1/4-18 NPT (with locking patch) |
| Overall Length | 2.23 in |
Cross References
This part replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23532797, 23511176
- PAI: 650657, P650657
- Fortpro: F238833
Applications
This oil pressure sensor fits non-EGR Detroit Diesel engines:
- Detroit Series 60 12.7 L (pre-EGR, through 2002)
- Detroit Series 60 14.0 L (pre-EGR, through 2002)
Representative vehicles using these engines:
- Freightliner Century Class, Classic, Columbia, FLD, Argosy
- Western Star 4900, 5900
- Sterling A9500, AT9500, LT9500
- Kenworth W900, T800, T600 (Detroit-equipped)
- Peterbilt 379, 378, 357, 387 (Detroit-equipped)
- Volvo VNL, VNM (Detroit-equipped)
This sensor is for non-EGR Series 60 engines. EGR-equipped (post-2003) Series 60 engines use a different sensor — verify your engine ESN and connector style before ordering.









