Mishimoto Radiator Overflow Reservoir Cap 1.1 Bar for Ford

Mishimoto Radiator Overflow Reservoir Cap — 1.1 Bar (Ford) Replace a weak factory cap with a precision-engineered Mishimoto 1.1 bar overflow reservoir cap designed specifically for Ford applications. Built to maintain consistent system pressure during spirited driving and high-heat conditions, this cap helps protect against coolant boiling, loss, and reduced cooling efficiency. Pressure Rating: 1.1 bar (16 psi) — raises the boiling point of coolant for improved thermal stability. Reliable Seal: Durable gasket and precision spring retain pressure under repeated use and heat cycles. OEM Fitment: Direct replacement for compatible Ford overflow reservoirs — easy install with no modifications. Performance Durable: Engineered materials resist warping, corrosion, and premature failure common with stock caps. Prevents Overheating: Keeps coolant in the system and maintains flow to reduce risk of air pockets and hot spots. Ideal for daily drivers, track cars, and any Ford vehicle experiencing cooling-system pressure loss. Upgrade to Mishimoto quality to maintain coolant where it belongs — inside the system.