1Universal Fitment: Coolant overflow tank is designed with universal fitment, suitable for most vehicles, replacement for Subaru, replacement for Mitsubishi, replacement for Mazda, replacement for Ford, and more. 2Securely Sealed: Coolant overflow tank features a tightly closed cap, fully Tig welded, and threaded with an O ring gasket, ensuring a secure and closed environment to prevent coolant leakage. 3Efficient Working: When the coolant pressure in the radiator exceeds the pressure cap setting, the coolant is sealed through the pressure cap and flows through the overflow tube into the radiator coolant overflow tank. 4Sturdy Construction: Coolant recovery tank is made of aluminium alloy materials, ensuring durability, longevity, and resistance to wear and tear. It is also designed to handle increased pressure. 5Improves Engine Performance: With coolant overflow tank, your vehicle's engine coolant system can operate at optimal levels, allowing it to perform efficiently and maintain a healthy temperature, helping to extend the life of your engine.