Description:

Compatibility: Replace for 16401-31520, 1640131520, 16401-31650, 1640131650, 16401-31480, 1640131480, 16401-46610, 1640146610 radiator cap; Compatible for Lexus/Toyota/Scion Vehicles. Material: Made of premium materials for durability, high temperature, and corrosion resistance, anti-rust, anti-oxidation, and anti-deformation, Ensure long-lasting and high performance. Function: If the pressure isn't maintained, coolant will boil and evaporate, the engine will at risk of overheating. Radiator cap holds the coolant inside the radiator, but it also works as a two-way valve that keeps the right pressure inside so the radiator does it work correctly. Designed for function on open cooling systems and overflow reservoir type systems. Easy to Install: Designed for a straightforward replacement, allowing you to easily remove your old radiator cap and install this new one to restore proper cooling system function.