20706327
RPM/TDC Sensor
Mack

The RPM/TDC sensor provides critical data to the engine control unit by monitoring crankshaft position and rotational speed. In Mack applications, accurate timing information drives fuel injection events and ignition timing, directly impacting power, efficiency, and emissions. This sensor is designed for rugged service, with a sealed housing to resist dust, moisture, and temperature extremes typical of long-haul driving or severe-duty operations. The sensor’s electrical interface is compatible with common ECU wiring standards, ensuring reliable signal integrity even in high-vibration environments. Proper installation requires a clean mounting surface, correct alignment with the tone wheel or reluctor, and a secure electrical connection to avoid signal loss. Regular diagnostics can detect degraded performance before it affects engine timing. Source One Parts Center stocks this essential component for dependable coordination between sensor input and engine management in Mack platforms.