Upgrade the cooling system on your 7.3L diesel Super Duty with this billet aluminum thermostat housing. Designed to replace the factory stamped steel unit, this upgraded housing eliminates common sealing issues while delivering long-term durability under heavy-duty use.

Factory thermostat housings are prone to warping and corrosion over time, leading to coolant leaks and inconsistent cooling performance. This CNC-machined billet aluminum replacement provides a stronger sealing surface and improved resistance to heat cycles, making it an ideal upgrade for work trucks, tow rigs, and high-mileage applications.

Key Features:

• Billet Aluminum Construction – Machined from premium 6061-T6 aluminum for superior strength and reliability.
• Leak-Resistant Design – Replaces the factory stamped steel flange that commonly warps and leaks.
• CNC Precision Machining – Ensures accurate fitment and proper sealing against the engine block.
• Anodized Finish – Provides excellent corrosion resistance and long-term durability.

Specifications:

• Condition: New
• Product Type: Thermostat housing
• Material: Billet aluminum
• Manufacturing Process: CNC-machined
• Recommended Bolt Torque: 100–110 in-lbs

Fitment:

• 7.3L diesel engines (1999.5–2003)

• Super Duty trucks equipped with 7.3L diesel
• F-250 (1999.5–2003)
• F-350 (1999.5–2003)

What’s Included:

• 1 × Billet aluminum thermostat housing

This billet thermostat housing is a simple yet essential upgrade for anyone looking to improve cooling system reliability and eliminate common factory failure points on the 7.3L diesel platform.