Description
PAI Industries aftermarket electric tachometer sensor in the Mack 64MT348M / 20706327 form factor. The bell-housing-mounted sensor uses a 3-pin rectangular connector and an 11.9 in. lead to feed engine speed to the dash tachometer and ECM across the 1997-2011 Mack range, including E7, E-Tech, and ASET applications. A failed unit typically produces a dropped or erratic tachometer signal, MIL, or speed-input fault code.
Signs You Need a New Tachometer Sensor
- Tachometer reads zero or drops to zero intermittently while driving
- Engine-speed input fault codes from ECM
- No-start or no-crank-signal condition
- Cruise control or PTO functions disabled by missing speed signal
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 64MT348M (Mack service number) |
| Sensor Type | Electric tachometer / engine speed |
| Connector Shape | Rectangular |
| Pin Count | 3 |
| Overall Length | 11.90 in. |
| Color/Finish | Black |
| Mount Location | Bell housing / timing cover |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack: 20706327, 64MT348M, 935-0281002206
- Automann: 577.62502
Applications
This tachometer sensor fits bell-housing / timing-cover mount locations on:
- Mack E7 12.0L (1997-2006)
- Mack E-Tech / ASET 12.0L (1998-2007)
- Mack MP7 11.0L / MP8 13.0L early applications (2006-2011)
Verify your engine serial number and connector pin pattern before ordering.
