6.7L Powerstroke Main Engine Thermostat Alliant AP63540 SKU: appAP63540

The Alliant Power AP63540 is a new main engine thermostat for 2011–2024 Ford 6.7L Powerstroke applications. Alliant’s Engine Coolant Thermostat regulates coolant flow as engine temperature changes.

Features & Benefits

New Alliant Power Main Engine Thermostat (Alliant P/N AP63540)
Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
Direct replacement for BC3Z-8575-A / BC3Z-8575-D / BC3Z-8575-E
Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

Ford F-250 Super Duty / F-350 Super Duty / F-450 Super Duty / F-550 Super Duty (2011–2024)
Ford F-150 (2023–2024)
Alliant Power lists additional vehicle applications for this part number

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

Cross-Reference / Replaces

Ford: BC3Z8575, BC3Z-8575-A, BC3Z-8575-D, BC3Z-8575-E, BC3Q8575CD
Motorcraft: RT1205, RT1231, RT1249
Alliant Power: AP63540

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