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For the 1973 model year General Motors made many updates and improvements to the Corvette cooling system including switching from earlier pressurized aluminum expansion tanks to a new non pressurized plastic model. Our 1973-Early 1977 Radiator Expansion Tank Cap is the correct GM replacement for the 1973-1977 plastic surge tanks. Caps are manufactured of the correct translucent white plastic and sold individually,
Also Fits:
1974-1975 Camaro
1974 Chevelle
1974-1975 Nova
1973 Chevrolet Pickup Truck