The XDP XTRA Cool Water Pump (With Housing) XD666 is a high-quality replacement for the failed water pump on your GM 6.6 LB7/LLY Duramax engine. This Water Pump comes with the housing which is known to leak or erode due to cavitation and or corrosion in the cooling system. This is a direct-fit replacement that includes the necessary seals for a hassle-free installation. Each pump is manufactured to factory specifications giving you a factory fit and function.

Features:

Includes New Seals
Direct-Fit Replacement
Meets OEM Specifications
Includes Water Pump & Housing

Specifications:

Fan Clutch Included: No
Housing Material: Aluminum
Hub Height IN: 2.515
Impeller Material: Grey Iron
Impeller Rotation: Standard
Impeller Vane Quantity: 8
Includes Back Housing: Yes
Mounting Hardware Included: No
Mounting Hole Quantity: 5
Outlet Quantity: 3
Pulley Included: No
Thermostat And Housing Included: No

Manufacturer Warranty:

2 Year / Unlimited Mileage

Note:

Any modifications such as welding the impeller or gear will void water pump warranty.
The harmonic balancer 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.