Correct reproduction of the original radiator overflow jar for use on various 1975-79 Firebird models. Utilizing the correct blow form method, each jar is manufactured in correct clear plastic material and features the GM part number, ADD/FULL lines and molded in mounting studs as original. Includes mounting nuts, clips and screws. For cap use 491032 (white lettering) or 494939 (blue lettering). For mounting bracket use part number 500528.
Note: Note: This is 1975 2nd design jar, for 1975 1st design use part number 491030.
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