GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Mechanical - 6.5L 🢒 Water Pump Installation
  1. Clean the sealing surfaces on the water pump plate and the block.
  2. Install the water pump and the gasket to the water pump plate.

    3. Object Number: 59828 Size: SH
  3. Apply high temperature thread adhesive GM P/N 12345493, or equivalent, to the bolt threads.

    4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the bolts.

    5. Tighten
    Tighten the bolts to 28 N·m (20 lb ft).


    Object Number: 66579 Size: SH
  5. Apply a bead of anaerobic sealer GM P/N 1052942 or the equivalent to the water pump plate.

    6. Object Number: 59826 Size: SH
  6. Install the water pump plate to the engine.
    7. • The sealer must be wet to the touch when installing the plate.
    • Apply the sealant GM P/N 12346004, or equivalent, to the threads of the bolts and studs.
  7. Install the bolts and studs.

    8. Tighten

        • Tighten the water pump to the front cover bolts to 42 N·m (32 lb ft).
        • Tighten the water pump plate to front cover bolts to 28 N·m (20 lb ft).