Cummins 6BT (12 Valve) Engine Speed Sensor Kit
Factory Cummins 12 Valve tach pickup, Cummins part number 3923129 (late style, 97/98)
Includes mating harness with 8' of wire that matches the color of our Tach Helper product. Also includes an air gap shim to set sensor height from balancer.
You will need the factory mounts on the gear case to attach the sensor.