Sierra 2500 4WD V8-6.0L (2008)
8. Position the oil cooler hose adapter end out of the way, if equipped.
9. Disconnect the coolant heater cord electrical connector.
Important: Do not score the surface of the engine block hole when removing the coolant heater.
10. Remove the coolant heater from the engine block.
11. Remove any burrs, sealer, or other rough spots.
Installation Procedure
