GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy K Silverado - 4WD 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Water Pump Installation

    Object Number: 881731 Size: SH
  1. Lubricate the water pump O-ring with engine oil.
  2. Install the engine coolant pipe gasket.
  3. Install the water pump seal.
  4. Install the water pump. Be sure the water pump studs align with the coolant tube.

    5. 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.

  5. Install the water pump bolts.

    6. Tighten
    Tighten the water pump bolts to 21 N·m (15 lb ft).


    Object Number: 881730 Size: SH
  6. Install the water pump to coolant tube nuts.

    7. Tighten
    Tighten the water pump to coolant tube nuts to 25 N·m (18 lb ft).