LINE A. 0531754 - Caterpillar

Removal Procedure
Note: The coolant temperature sensor is located in the water temperature regulator housing.
Drain the coolant from the cooling system to a level below the coolant temperature sensor into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - change" for the correct draining and refilling procedures.
Illustration 1 g03392900
Disconnect harness assembly (1) and remove coolant temperature sensor (2).
Remove the O-ring seal from the coolant temperature sensor. Installation Procedure
Install coolant temperature sensor (2) in the reverse order of removal. Note: Do not pre-tighten the sensor using the plastic portion of the sensor. Pre-tighten the sensor using the metal hex portion of the sensor. Damage can occur to the sensor if pre-tightened using the plastic portion of the sensor.
Tighten coolant temperature sensor (2) to a torque of 20 3 N m (177 27 lb in).