Description
PAI 050676 is an aftermarket multi-function temperature sensor kit that replaces Cummins OEM 4088832 and 4076841 across ISX, QSX, ISC, ISL, ISM, ISB, and ISF engine families. Two-pin oval Deutsch connector with M14 x 1.5 threads, supplied with PAI 121210 O-ring (equivalent to Cummins 3678912) for the sensor port. Used for coolant temperature on most platforms and for intake-manifold air temperature on 2004 to 2006 ISC, ISL, ISX, and QSX EPA02-era controls.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 050676 |
| Part Type | Temperature Sensor (coolant / intake-manifold air) |
| Connector | 2-pin oval (Deutsch-style) |
| Thread | M14 x 1.5 |
| Engine Compatibility | Cummins ISX, QSX, ISM, ISL, ISC, ISB, ISF |
| Included Hardware | PAI 121210 O-ring (OEM 3678912) |
Cross References
This temperature sensor replaces or is equivalent to the following part numbers:
- Cummins: 4088832, 4076841, 4088833
- PAI Industries: 050676
- Alliant Power: AP63604
- Cummins O-ring: 3678912 (PAI 121210)
Applications
This sensor fits the following Cummins engine families:
- Cummins ISX 15L (HPI / EPA02–EPA10 ECMs that use the M14 x 1.5 oval-connector port)
- Cummins QSX 15L (industrial / off-highway)
- Cummins ISM 11L
- Cummins ISL / ISC 8.3L (2004–2006 intake-air temp; multi-position elsewhere)
- Cummins ISB 5.9L / 6.7L
- Cummins ISF 2.8L / 3.8L
Representative vehicles using these engines:
- Class 8 tractors with Cummins ISX or ISM (Kenworth T660/T680, Peterbilt 379/389, Freightliner Cascadia, International ProStar) (2003–2017)
- Medium-duty trucks with ISC or ISL (Freightliner M2, International DuraStar, Kenworth T370) (2004–2017)
- Off-highway equipment with QSX 15L
Verify your engine ECM family and the sensor port location (coolant vs intake-air) before ordering. The two cross-referenced OEMs share the same M14 x 1.5 oval-connector form factor but live in different ports depending on application.









