GM Service Manual Online
For 1990-2009 cars only

Water Pump Outlet Pipe Replacement 6.6L (LB7) Engine

Removal Procedure

  1. Remove the water pump. Refer to Water Pump Replacement .

  2. Object Number: 699336  Size: SH
  3. Remove the water pump outlet pipe from the engine oil cooler assembly.
  4. Remove and discard the O-ring seal.
  5. Remove the gasket and clean the sealing surface.

Installation Procedure


    Object Number: 699336  Size: SH
  1. Install a new O-ring seal on the water pump outlet pipe.
  2. Lightly lubricate the O-ring seal with engine oil.
  3. Install the water pump outlet pipe in the engine oil cooler assembly.
  4. Install a new water pump outlet pipe to water pump gasket.
  5. Install the water pump. Refer to Water Pump Replacement .

Water Pump Outlet Pipe Replacement 6.6L

Removal Procedure

  1. Remove the water pump. Refer to Water Pump Replacement .

  2. Object Number: 1336117  Size: SH
  3. Remove the engine coolant pipe.
  4. Remove and discard the coolant pipe O-ring seal.

Installation Procedure


    Object Number: 1336117  Size: SH
  1. Install a NEW O-ring seal onto the coolant pipe.
  2. Lubricate the O-ring seal with engine coolant.
  3. Install the engine coolant pipe.
  4. Install the water pump. Refer to Water Pump Replacement .