Description
EGR differential pressure (delta-P) sensor for Detroit Diesel Series 60 engines, replacing OEM 23531964. The PAI 650642 reads the pressure drop across the EGR system so the ECM can calculate exhaust gas recirculation flow and trim injection events accordingly. Built by PAI Industries to OEM specifications and individually tested before shipment.
Signs You Need a New EGR Delta-P Sensor
- Active EGR-related fault codes (low/high differential pressure, sensor circuit, plausibility)
- Engine derate or check-engine light tied to EGR system
- Black smoke, rough idle, or surge under load with no other fuel-system fault
- Sensor-rationality codes after EGR cooler or piping service
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 650642 |
| Part Type | EGR Differential Pressure Sensor (Delta-P) |
| Engine Compatibility | Detroit Diesel Series 60 (12.7L, 14.0L) |
| Connector | 3-pin, oval |
| Overall Length | 3.59″ |
| Weight | 1.02 lbs |
| Quality Tier | Premium Aftermarket |
| Warranty | 2 Years (PAI) |
Cross References
This part replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23531964
- PAI Industries: 650642
Applications
This EGR delta-P sensor fits the following Detroit Diesel engines:
- Detroit Diesel Series 60 12.7L EGR (2002-2007)
- Detroit Diesel Series 60 14.0L EGR (2002-2011)
Representative vehicles using these engines:
- Freightliner Century Class, Columbia, Coronado (2002-2011)
- Western Star 4900 (2002-2011)
- Sterling A9500/L9500 (2002-2008)
Verify your engine serial number and EGR configuration before ordering. DD13/DD15/DD16 engines use a different sensor — see Detroit 23531964 fitment lookup or your engine ESN to confirm.
