Mishimoto Aluminum Expansion Tank 2015 Ford F150 Natural

The aluminum expansion tank replaces the OEM plastic coolant reservoir with an aluminum expansion tank, providing a durable alternative that resists the common brittleness and failure of the factory plastic unit while improving engine-bay appearance.

Designed by Mishimoto for 2015–2020 Ford F-150 applications, this tank is a purpose-built replacement for the stock coolant reservoir. It addresses the known issue of plastic tanks becoming brittle over time, offering a metal construction that maintains form and function under thermal cycling and routine service.

Why this matters

The OEM plastic tank can crack or discolor as vehicles age, leading to coolant loss, unnecessary service events, and an untidy engine bay. The Mishimoto aluminum expansion tank reduces the risk of plastic-related failures and provides a clean, long-lasting visual upgrade without altering the vehicle’s coolant system architecture.

Key functional benefits

• Direct replacement for the factory tank: Installs in place of the OEM reservoir for straightforward integration into the existing cooling system.
• Aluminum construction: Offers a metal alternative to brittle plastic, improving reliability in older or heavily used vehicles.
• Maintains coolant system function: Designed to serve the same expansion and overflow roles as the stock tank while avoiding plastic degradation issues.
• Engine-bay appearance: Replaces the unsightly OEM plastic with a more refined, corrosion-resistant finish for a cleaner look.

Brand and support

Manufactured by Mishimoto, a brand known for engineered cooling components, this aluminum expansion tank leverages the company’s focus on durability and fitment for performance-minded and maintenance-focused owners of the Ford F-150.

If you are replacing a brittle or damaged OEM reservoir or seeking a durable, long-term upgrade for a 2015–2020 Ford F-150, the Mishimoto Aluminum Expansion Tank provides a functional, reliability-focused solution.