The Alliant Power AP63503 is a new water pump for 2004–2007 Ford 6.0L Powerstroke applications. Alliant’s Engine Water Pump circulates coolant through the engine and cooling system.

Features & Benefits

• New Alliant Power Water Pump (Alliant P/N AP63503)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for 4C3Z-8501-AC / 4C3Z-8501-C / 4C3Z-8501-AB
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Ford F-650 / F-750 / E-450 Super Duty / F-250 Super Duty / F-350 Super Duty / F-450 Super Duty / F-550 Super Duty (2004–2007)
• Ford Excursion / E-350 Club Wagon (2004–2005)
• Ford E-350 Super Duty (2004–2010)

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

Cross-Reference / Replaces

• Ford: 4C3Z8501, 4C3Z-8501-AC, 4C3Z-8501-C, F81Z8501ABRM, 4C3Z-8501-AB, 4C3Z8501ABRM
• Motorcraft: PW491, PW662
• Navistar: 5010118, 5010118R91
• ACDelco: 252-885
• Alliant Power: AP63503

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