Description
Aftermarket dual probe exhaust gas temperature (EGT) sensor module for Cummins EPA13 ISX and QSX 12-liter engines, supplied by PAI Industries (PAI 050727) as a direct replacement for Cummins OEM 4384812. The sensor reports pre- and post-SCR exhaust temperatures to the engine ECM so the aftertreatment controller can manage DEF dosing and DPF regeneration windows. Threaded fittings install into the exhaust gas temperature module bracket on the SCR / DPF inlet.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 050727 (also listed as 050727OEM) |
| Part Type | Dual Probe Exhaust Gas Temperature Sensor |
| Engine Compatibility | Cummins ISX 12L, QSX 12L (EPA13) |
| Replaces | Cummins 4384812 |
| Thread | M12 x 1.25 |
| Probe Lengths | 3.16 in / 6.5 in / 7.75 in / 13.12 in |
| Includes | High-temperature anti-seize on probe threads |
Cross References
This part replaces or is equivalent to the following part numbers:
- Cummins: 4384812
- Paccar: 1906310PE, 2129818PE
- Dinex: 5EL025
- Omega Environmental: EGT295
- Global Parts: 1814675
Applications
This dual probe exhaust temperature sensor fits the following engines:
- Cummins ISX 12L EPA13 (2013-2016)
- Cummins QSX 12L EPA13 (2013-2016)
Representative chassis using these engines:
- Kenworth T660, T680, T800, W900 (2013-2016)
- Peterbilt 386, 388, 389, 567, 579 (2013-2016)
- Freightliner Cascadia, Coronado (2013-2016)
- International ProStar, LoneStar (2013-2016, Cummins-equipped)
Verify your engine serial number, EPA emissions tier, and exhaust aftertreatment configuration before ordering to confirm fitment.









