The Speedflow 462-32.16 Billet Radiator Cap is a 16lb (110 kPa) pressure-rated cap designed to maintain consistent cooling system pressure in performance and motorsport applications. CNC-machined from billet aluminium, it offers reliable sealing, improved durability, and a professional finish compared to standard stamped caps. By maintaining correct system pressure, this cap helps raise coolant boiling point and supports stable engine temperatures under demanding conditions. Features 16lb (110 kPa) pressure rating for effective cooling system control CNC-machined billet aluminium construction for strength and longevity High-quality sealing mechanism for consistent pressure retention Corrosion-resistant finish suitable for performance environments Direct replacement fit for compatible radiator filler necks Typical Applications Performance street vehicles Motorsport and track cars Upgraded cooling systems Custom radiator and swirl pot setups Fitment Notes Confirm radiator or filler neck is designed for a 16lb pressure cap Not suitable for systems requiring lower or higher pressure ratings Ensure sealing surfaces are clean and undamaged before installation Do not remove cap while system is hot or under pressure Radiator Cap made from Billet Alloy. 16lb Pressure, suits Speedflow Large Weld on Radiator Necks