Description
The PAI 853758 is a DPF (diesel particulate filter) delta pressure sensor for 2010 and newer Mack and Volvo heavy-duty trucks, replacing Mack 23488881 and Volvo 21403962. The sensor measures pressure differential across the DPF and feeds data to the ECM to trigger active regeneration when soot loading reaches the threshold. Backed by PAI’s 2-year unlimited mileage warranty.
Signs You Need a New DPF Pressure Sensor
- Check engine light with DPF-related fault codes
- Frequent or incomplete regeneration cycles
- Engine derate or reduced power warnings
- Truck enters limp mode due to aftertreatment faults
- Erratic DPF soot level readings on diagnostic scan
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 853758 |
| Part Type | DPF Delta Pressure Sensor |
| Connector | Rectangular, 3-Pin |
| Overall Length | 3.24 in |
| Engine Compatibility | Volvo D11, D13 / Mack MP7, MP8 |
| Warranty | 2 Years Unlimited Mileage |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack: 23488881
- Volvo: 21403962, 24405156
- Also known as: 7421403962
Applications
This DPF pressure sensor fits the following engines:
- Volvo D11 10.8L (2010+)
- Volvo D13 12.8L (2010+)
- Mack MP7 11L (2010+)
- Mack MP8 12.8L (2010+)
Representative vehicles using these engines:
- Volvo VNL, VNR, VNM, VNX, VHD (2010+)
- Mack Anthem (2017+), Pinnacle CXU (2010+), Granite GU (2010+), CHU (2010-2018)
Verify your VIN, engine serial number, and emission certification (US10, US13, US17, GHG17) before ordering. When replacing, inspect the dual pressure hoses for cracks or blockage.
