A Mustangs, Etc. Exclusive!
Special size O-ring that seals the fuel filler neck to the gas tank for 1965-1966 full-sized Ford/Galaxie/LTD and Mercury
(except stationwagons)
Part# 379228-S92
Often gets confused with C5AZ-9008-A in the Ford Master Parts Catalog, but this is the actual seal that keeps your tank from leaking when you fill it up!