Description
The PAI 740231 is an aftermarket oil temperature sensor for Freightliner engine and transmission service positions, replacing Freightliner 06-23464-000. It uses a 1/2″-14 NPT (with sealant) thread and a 2-pin oval connector — the standard Freightliner harness shared by the engine oil temp and transmission oil temp circuits on Cummins ISX/ISM, Detroit DD13/DD15/DD16, and Eaton/Allison transmissions sourced through Freightliner.
Signs You Need a New Oil Temperature Sensor
- Implausible oil-temp reading (pinned high, pinned low, or stuck on a single value)
- Active fault code for engine or transmission oil temperature circuit
- Open or short circuit when the sensor is bench-tested for resistance vs. temperature
- Temp-related derate or check-engine illumination after a cooling-system service
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 740231 |
| Part Type | Oil temperature sensor (engine or transmission service position) |
| Thread | 1/2″-14 NPT (with sealant) |
| Connector | 2-pin oval |
| Overall Length | 2.18 in |
| Finish | Gold / black housing |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner: 06-23464-000, PF06-23464-000
- PAI Industries: 740231
- Automann: 577.46613
- Newstar: S-22290
Applications
Fits Freightliner trucks using the 06-23464-000 sensor for engine or transmission oil temperature reporting:
- Freightliner Cascadia, Columbia, Century, Coronado, FLD, Business Class M2
- Engine oil temp position on Detroit DD13 / DD15 / DD16 and Cummins ISX / ISM where Freightliner specifies 06-23464-000
- Transmission oil temp position on Eaton / Allison transmissions sourced through Freightliner using the 06-23464-000 sensor
This sensor is used in both engine-oil and transmission-oil-temp positions on Freightliner trucks. Confirm the part number stamped on the sensor you are replacing and the harness pinout before ordering — Freightliner uses several similar 2-pin oval temperature sensors with different resistance curves and threads.
