Chrome Aluminum Radiator Cap -Matches many Valve Covers and Air Cleaner Assemblies that we sell and others on the market -Standard 16 PSI Cap -Recommend for use with aftermarket radiators -Diameter of the cap is just under 3" -Diameter of the pressure valve portion is 1.5" -Measurement between the inside edges of the locking tabs is 2" -All measurements are standard for most aftermarket radiators and many factory radiators -Many original radiators from vintage vehicles from the 30s to the 60s had radiator caps that were much lower pressure. Please make sure your radiator and system can handle a 16 lb cap.
