Check the listing for details. rc15 AC radiator cap 64-81 GTO 442 GS chevelle pontiac chevy olds hollow rivit. Condition: New. Listed at 37.50 USD. SUPPORT AMERICAN WORKERS! BUY AMERICAN-MADE PRODUCTS! This is a new made in the USA reproduction of the AC rc15 radiator cap. Includes as shown. This is the hollow tubular center rivet style. This a 15# pound radiator cap. This cap is used on many models for many years. Fits most GM models from 64-81. The cap has a zinc plating and has the AC logo in the circle in the left, 15# in the circle and has the large ears. GTO lemans tempest Pontiac judge ram air Chevy Chevrolet special Malibu ss super sport chevelle olds oldsmobile f-85 cutlass 442 4-4-2 buick gs gran sport skylark 1968 1969 1970 1971 1972. Per California Law (Prop 65) we are required to put the following warning on all our listings. WARNING: This product can expose you to chemicals, including lead, which is know to the state of California to cause cancer, birth defects and or reproductive harm - www.P65Warnings.ca.gov