The Alliant Power AP63542 is a new thermostat low temp left side for 2011–2016 Ford 6.7L Powerstroke applications. Alliant’s Engine Coolant Thermostat regulates coolant flow as engine temperature changes.

Features & Benefits

• New Alliant Power Thermostat Low Temp Left Side (Alliant P/N AP63542)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for BC3Z-8575-C / BC348575CB / RT1207
• 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 (2011–2016)

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

Cross-Reference / Replaces

• Ford: BC348575CB, BC3Z-8575-C
• Motorcraft: RT1207
• Alliant Power: AP63542

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