XDP XTRA Cool Water Pump (With Housing) XD666

PART# XD666 | SKU XD666

Vehicle Fitment For:
2001-2005 GM 6.6L Duramax LB7/LLY | 2003-2005 GM Kodiak/Topkick C4500/C5500 6.6L Duramax

See full application list below
NOTES: 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 p
$157.95

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Estimated ship date: 06/15/2026 (if ordered today)
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Description

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.

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Specifications For XDP XD666

MPN XD666
SKU XD666
ID 150430
Manufacturer Name XDP
Shipping Weight 7.00 lb.
Shipping Length 9 in.
Shipping Width 9 in.
Shipping Height 9 in.
Fuel Type Diesel
E-Code 1
Manufacturer Warranty* 2 Year / Unlimited Mileage
Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Cross Reference # 19113733, 19357961, 251-674, 251-723, 252-994, WP9301, 20331, 98211, 55-13617, 19168888, 97216136, NP1768, 42349BH, 130-5980, 111122, JAMZ 8501 K
Internal L0R0

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