72-21-938 - OE-R Clamp-In Sensor S391

Aftermarket OE replacement sensor.

Please note a scan tool is required to gather sensor information – including the Sensor ID which is not printed on aftermarket sensors.

Nut Torque: 4.0Nm

Screw Torque: 1.4Nm

Comparative Part Numbers: HTS-A69BM-S391, HAM-S391.1,