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PAI 740229 Coolant Temperature Sensor – Replaces Freightliner 22-54800-001
PAI 740229 Coolant Temperature Sensor – Replaces Freightliner 22-54800-001
Premium aftermarket replacement engine coolant temperature sensor from PAI Industries. The 740229 replaces Freightliner 22-54800-001, uses a 2-pin oval connector, and ships with its O-ring seal and thread locking compound.
Signs You Need a New Coolant Temperature Sensor
- Coolant temperature gauge reading erratically, pegged, or dead
- Cooling fan clutch engaging constantly or never engaging
- False overheat warnings with a cool engine
- Engine derate triggered by an implausible temperature reading
- Active coolant temperature fault codes
- Coolant weeping at the sensor boss
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 740229 |
| Part Type | Engine Coolant Temperature Sensor |
| Connector | 2-pin, oval |
| Thread | 3/4 in -16 |
| Overall Length | 2.2 in |
| Includes | O-ring seal and thread locking compound |
| Core Charge | None — sold outright |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner: 22-54800-001
- Freightliner: O41383
Applications
This coolant temperature sensor fits:
- Freightliner chassis using sensor 22-54800-001
Verify the Freightliner part number and the thread before ordering. Freightliner 22-54800-000 is a DIFFERENT sensor — it uses a 1/2 in -14 NPT thread and a rectangular 2-pin connector, and it is not interchangeable with this one. Match the full OEM number including the last three digits. No core charge applies.