Cummins 4921686 Position Sensor

The Cummins 4921686 is a Hall-effect position sensor designed to monitor crankshaft or camshaft rotational position in Cummins diesel engines. It provides a digital signal to the engine control module for accurate fuel injection timing and engine speed governance. The sensor features a threaded M12 x 1.5 mounting interface and a sealed 3-pin connector resistant to vibration, moisture, and thermal cycling from -40°C to 130°C. Constructed with a durable ABS and metal housing, it meets OEM specifications for durability in heavy-duty on-highway and off-highway applications. Cross-references include Cummins 2872279, 3408531, 4921684, 4921687, 5594276, and vehicle OEM numbers such as Dodge 5179099AB and Komatsu 6754-81-9200.