Description
The 20513343 is a Mack/Volvo engine speed (tachometer) sensor with a 2-pin rectangular connector and Viton 75 O-ring, mounted at the flywheel housing on the MP7/MP8 and Volvo D11/D13/D16 platform to read the crankshaft target wheel and feed RPM to the ECM and instrument cluster. PAI 845069 is the catalog equivalent and replaces Mack/Volvo 20513343 and 21426987.
Signs You Need a New Speed Sensor
- Tachometer drops to zero or jumps erratically while running
- Engine cranks but fails to start, or stalls intermittently
- Active engine speed sensor fault code on the dash
- Loss of cruise control or speed-limiter function
- Hard or rough starts when the sensor signal is intermittent
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 845069 |
| Part Type | Engine Speed / Tachometer Sensor |
| Connector | 2-pin rectangular |
| Seal | Viton 75 O-ring |
| Engine Compatibility | Mack MP7, MP8; Volvo D11, D13, D16 |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack: 20513343, 21426987
- Volvo: 20513343, 21426987
- PAI: 845069
Applications
This engine speed sensor fits the following engines:
- Mack MP7 11L (2007-2016)
- Mack MP8 13L (2007-2016)
- Volvo D11 11L (2007-2016)
- Volvo D13 13L (2007-2016)
- Volvo D16 16L (2007-2016)
Representative vehicles using these engines:
- Mack Pinnacle CXU / CHU (2008-2016)
- Mack Granite GU713 / GU813 (2008-2016)
- Volvo VNL 300 / 430 / 630 / 670 / 730 / 780 (2007-2016)
- Volvo VNM 200 / 430 / 630 (2007-2016)
- Volvo VHD / VAH (2007-2016)
Verify your engine serial number and configuration before ordering to confirm fitment.









