Description
Aftermarket coolant temperature sensor (PAI 650654) replacing Detroit Diesel 23515251 and 23514708 on Series 60 12.7L, 14L, and 11.1L engines. Two-pin oval connector, 1″-14 thread, brass housing — standard supersession of the GE/Delco GEGT7610-477 design used on Detroit Series 60 from the early 1990s through the end of EGR-era production.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 650654 |
| Part Type | Coolant Temperature Sensor |
| Engine Compatibility | Detroit Diesel Series 60 (12.7L, 14L, 11.1L) |
| Thread Size | 1″-14 |
| Pin Count | 2 |
| Connector Shape | Oval |
| Overall Length | 2.36 in |
| Color / Finish | Gold body, black connector |
Cross References
This sensor replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23515251, 23514708, 23514742
- PAI Industries: 650654
- GE / Delco: GEGT7610-477, GT7610-477
Applications
This coolant temperature sensor fits the following engines:
- Detroit Diesel Series 60 12.7L (1990–2007)
- Detroit Diesel Series 60 14L (2001–2007)
- Detroit Diesel Series 60 11.1L (1987–1995)
Representative vehicles using these engines:
- Freightliner Classic, Century, Columbia, Coronado (1990–2007)
- Western Star 4900, 5900, 6900 (1990–2007)
- Sterling A-Line, AT, L-Line (1998–2007)
- Ford LT/LTL/L9000-series Class 8 conventionals (1990–1998)
Verify your engine serial number before ordering. Series 60 DDEC II/III/IV/V calibrations all use the same coolant temperature sensor.









