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The Turbosmart oil cap for Subaru M42x4.5 applications is a direct-fit replacement sized to M42x4.5 threads. Finished in purple, it seals the oil filler port to limit contaminants and leaks while providing a color accent under the hood. It replaces the factory cap without changing thread fitment on compatible Subaru engines.
Turbosmart Subaru M42x4.5 Purple Oil Cap
