DCEC General Speed Sensor Assembly 3971994 The sensor is a detection device that senses measured information and converts it into electrical signals or other required forms of output to meet information transmission, processing, storage, display, recording, and control requirements. This oil pressure sensor detects oil pressure signals and transmits data to the ECU for information storage and delivery to the instrument cluster. Name: Speed Sensor Type: DCEC Generator Engine RPM Pickup Speed Sensor Model Number: 3971994 Keywords: Speed Sensor Wire: 2 Thread Length: 42mm Thread Distance: 18mm Fit: For Cummins 6BT Engine Color: As Shown Material: Plastic + Metal Package Contents: 1 x Speed Sensor Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. Measurement error allowed is +/- 1-3cm.