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For years, Subaru enthusiasts have chosen our performance aluminum radiators as a reliable way to increase cooling capacity and durability beyond what factory equipment can provide. Built from fully brazed aluminum and engineered for a direct fit, these radiators have proven themselves in both daily driving and high-performance conditions. While the radiator itself is the heart of the system, smaller components are just as critical to long-term reliability. One of the most important is the radiator cap, and our latest update ensures that Subarus from 2002 onward equipped with dual radiator caps now receive exactly the right components for their system.
These Subarus feature a unique cooling arrangement that uses two separate radiator caps. The radiator is fitted with a one-way cap, while the expansion tank requires a two-way cap. Each cap is designed for a specific function, and together they maintain consistent pressure and coolant flow as the engine heats up and cools down.
Previously,