The Alliant Power AP63566 is a new water pump housing for 2001–2005 GM LB7/LLY Duramax applications.

Features & Benefits

• New Alliant Power Water Pump Housing (Alliant P/N AP63566)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for 97228188
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Chevrolet Silverado 3500 / Silverado 2500 HD (2001–2005)
• GMC Sierra 3500 / Sierra 2500 HD (2001–2005)

Always verify fitment against your VIN, engine, and OE part number before ordering.

Cross-Reference / Replaces

• General Motors: 97228188
• Alliant Power: AP63566

Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).