3971994 for Cummins 6BT DCEC Generator Engine RPM Pickup Speed Sensor Assembly M18 Thread Diesel Gen DCEC general speed sensor assembly 3971994 Sensor Is a kind of detection device, can feel the measured information and will feel the information, according to a certain rule form become electrical signals or other required forms of information output, to meet the information mission, processing, storage, display, record and control requirements, oil sensor is a kind of testing oil pressure signal, the quack mission to the ECU for storing information and send to the inst ent cluster. Name:Speed sensor Type:DCEC Generator Engine RPM Pickup Speed Sensor Model Number:3971994 key words:speed sensor Wire:2 Thread length:42mm Thread distance:18mm Fit:For Cummins 6BT engine Colour:As Shown Material:Plastic+Metal Package Contents: 1 * Speed sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.