Billet Radiator Cap Large Style 7 psi (0.5 Bar) suit 42mm Water Neck
Blue Finish .

These Aeroflow radiator caps feature a precision-machined billet aluminium top from 6061-T6 aluminium. Designed for use on 42mm (large cap) radiators and recovery type expansion tanks. These caps are rated at 7 psi (50 kPa).