AEROFLOW Billet Radiator Cap Large, 7 psi (0.5 Bar) suit 42mm Water Neck BLUE Heat Sheild comes with rubber inserts and

comes with rubber inserts and can be universally mounted where ever you wish

these Proflow AN to inverted flare

and has been proven to reduce coolant temperatures up to 20°F

670" Shank Diameter

GM 32 spline TH400

AEROFLOW Billet Radiator Cap Large, 7 psi (0.5 Bar) suit 42mm Water Neck BLUE Heat Sheild comes with rubber inserts andAF64 5042 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).