Description
The PAI FSU-0554 is a complete differential/transmission oil temperature sensor service kit for Mack E7, E-Tech, and ASET engines, replacing OEM Mack 64MT298AM. Ships with the temperature sensor itself plus the rectangular connector body, electrical terminals, seals, and connector lock so the entire harness-side connection can be refreshed in one job.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | FSU-0554 (also 0554) |
| Replaces | Mack 64MT298AM, 64MT298M |
| Part Type | Differential / Transmission Oil Temperature Sensor Kit |
| Engine Compatibility | Mack E7, E-Tech, ASET |
| Connector Shape | Rectangular |
| Color / Finish | Black / Gold / Green |
| Warranty | 2 years unlimited mileage (PAI) |
Kit Includes
- Oil temperature sensor — PAI FSU-0560 (OEM Mack 64MT2112M)
- Connector — PAI FCN-0462 (OEM Mack 954AM14)
- Electrical terminal — PAI FTM-0463 (OEM Mack 925AM3) (qty 2)
- Connector seal — PAI FCS-0464 (OEM Mack 970AM1) (qty 2)
- Connector lock — PAI FCL-0465 (OEM Mack 971AM9)
- Installation instruction sheet — PAI 1120
Cross References
This sensor kit replaces or is equivalent to the following part numbers:
- Mack: 64MT298AM, 64MT298M
- PAI Industries: FSU-0554, 0554
Applications
This sensor kit fits the following engines:
- Mack E7 (12.0L)
- Mack E-Tech (12.0L)
- Mack ASET (AC, AI, AMI variants)
Representative vehicles using these engines:
- Mack CH, CL, CV (Granite), CT (Vision), RD, DM (1990s–2007)
Note: Not for Mack MP7 / MP8 engines — those use a different sensor architecture.
Verify your engine model and confirm the sensor location (transmission vs. differential) before ordering.









