Radiator Cap | Mazda3 Sedan, Hatchback & Mazdaspeed3 (2004-2013)
Your Mazda3's cooling system is critical to keep your engine functioning at an optimal temperature. The radiator cap is a protective cap that acts as a pressure valve. It acts as a release valve to open at a maximum pressure in order to allow heat to escape from the radiator and to also allow excess coolant fluid to overflow into the tanks. A properly functioning radiator cap will help protect your car's engine from overheating.
Keep your Mazda3 & Mazdaspeed3's cooling system functioning properly
High quality OEM Radiator Cap
The Radiator cap is a protective cap that acts as a pressure valve for the radiator