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Correct reproduction radiator overflow jar for use on various 1975-79 Firebird models. Manufactured using the correct blowform method, each jar is produced in clear plastic material and features the GM part number, ADD and FULL lines, and molded in mounting studs just like the original. Includes mounting nuts, clips, and screws. Compatible caps include 491032 with white lettering or 494939 with blue lettering. For the mounting bracket, use part number 500528. This jar is designed for the 1975 second design overflow jar. For the 1975 first design, use part number 491030.
Features and Benefits:| Make | Model | Years |
| Pontiac | Firebird | 1975 - 1979 |
| Height | 11 in |
| Length | 7 in |
| Weight | 5 lbs |
| Width | 10 in |