This radiator cap adopts high-strength stamped metal shell and high elasticity sealing rubber ring. The built-in precision spring controls fixed pressure value stably. All fitting dimensions are strictly calibrated to match standard radiator water tank openings.
It integrates dual functions of pressure stabilization and overflow protection. It raises the boiling point of coolant to improve engine heat dissipation efficiency. It releases excess pressure automatically to avoid tank bulging or coolant leakage under high temperature.
Every finished product undergoes pressure cycle and aging sealing tests. It fits most passenger cars, light trucks and construction machinery for aftermarket replacement. We supply stable batch goods with complete model coverage for global auto parts buyers.