Paccar Q21-6005 Speed Sensor – Kenworth Peterbilt 1995–2011 Air Pressure Regulator and Donaldson P553871

and Donaldson P553871

This camshaft/crankshaft position sensor replaces or is equivalent to the following part numbers:

and small excavators with the matching circuit

The QR-1C is mounted on the emergency side of spring-brake chambers

Paccar Q21-6005 Speed Sensor – Kenworth Peterbilt 1995–2011 Air Pressure Regulator and Donaldson P553871Paccar Q21 6005 speed tachometer sensor for 1995 2011 Kenworth and Peterbilt trucks equipped with Eaton transmissions using an internal tone ring. The 2 pin rectangular sensor mounts in the transmission tailshaft housing on a 3 4 16 fitting and supplies the vehicle speed and tachometer signals to the speedometer cluster, cruise control, and ECM. Common replacement when the speedometer drops to zero, the cruise won't hold, or the ECM logs a vehicle