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This Gates threaded radiator cap is specified for 1987–1992 BMW 325i coolant bottles and is rated to 20 psi. It functions as the system pressure relief and sealing device at the coolant reservoir, maintaining the specified pressure threshold to support proper coolant system boiling point and flow. The cap is offered as a direct-fit replacement for the listed BMW 325i years and reservoir type.
Gates 87-92 BMW 325I Threaded Coolant Bottle Radiator Cap - 20 psi
