The XDP X-TRA Cool Water Pump (Pump Only) XD678 is a direct-fit replacement for the failed component in your GM 6.6 L5P Duramax. This water pump utilizes high-quality materials in the manufacturing process and is made to the same high-quality specifications as the factory pump. This is sold as the water pump only, no housing included.
Features:

• High-Quality Materials
• Direct-Fit Replacement
• Includes Mounting Gasket
• 2 Year/Unlimited Mileage

Specs:

• Housing Material: Aluminum
• Hub Height: 1.433 Inch
• Impeller Material: Plastic
• Impeller Rotation: Reverse
• Impeller Vane Quantity: 7
• Mounting Hole Quantity: 6

Notes:

• The harmonic balancer bolt will need to be removed to replace your water pump.
• The factory bolt is a torque-to-yield fastener (TTY) for one time use and must be replaced.