The M20123 Cummins Socket Speed Sensor is a precision-machined service tool designed for the safe removal and installation of the engine speed/position sensor on select Cummins heavy-duty diesel engines. Built as a direct aftermarket replacement for the OEM 3822747 sensor socket, this 11/16″ hex sensor socket provides the precise fit required to service the elusive speed sensor on Cummins L10, M11, and N14 engines.
On Cummins Celect-equipped engines, the speed or engine position sensor plays a critical role in engine timing, ECM signal feedback, and overall engine performance. When performing diagnostics, ECM sensor replacement, or timing system service, using the proper sensor socket helps technicians avoid damaging the sensor housing, connector body, or surrounding components. Designed for heavy-duty truck, industrial, and fleet applications, the M20123 tool ensures accurate engagement and smooth service operations.
This speed sensor socket is ideal for professional diesel technicians, fleet maintenance facilities, and rebuild shops that regularly work on Cummins medium and heavy-duty platforms. Its robust construction and correct 11/16″ hex engagement help reduce wear on the sensor fitting and prolong service life.
Key Features & Benefits
-
Direct replacement for Cummins OEM 3822747 engine speed/position sensor socket.
-
11/16″ hex socket sized for precise engagement with the speed sensor body.
-
Designed specifically for Cummins L10, M11, and N14 diesel engines.
-
Helps prevent sensor housing and connector damage during removal/installation.
-
Heavy-duty construction suited for repeated shop use.
-
Ideal for ECM diagnostics, sensor swaps, and timing system service.
Applications
-
Cummins L10, M11, and N14 Celect engine platforms
-
Engine speed/position sensor installation and removal
-
ECM diagnostics and engine timing service
-
Fleet maintenance shops, heavy-duty garages, and rebuild facilities