Stainless Pressure Release Radiator Cap - Choose Pressure

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Highly polished stainless and brass construction. 79mm max width. Rubber upper and lower seal. Fits 56mm diameter neck. 14mm locking ears. One-way valve for use with overflow/expan sion tank. Standard reach 23mm. 7- 20lb pressure options Rubber upper and lower seals. No more scalded hands or hot water fountains in your engine bay. Just lift the lever to relieve pressure in your cooling system before you take the cap off. POLISHED STAINLESS PRESSURE RELIEVING RADIATOR CAP #RCPR • Integrated lever for controlled pressure release before cap removal • Designed to help prevent burns, coolant spray, and engine bay mess Choose a pressure‑relieving radiator cap that combines safety, performance, and durability—an essential upgrade for any well‑engineered cooling system. Show more