1953-1968 for Jeep CJ3B. 1955-1975 for Jeep CJ6. 1955-1975 for Jeep CJ5. 1966-1975 for Jeep CJ6 Base Sport Utility 2-Door. 1956-1958 for Jeep Willys DJ-3. 1956-1958 for Jeep Willys Base. A carburetor is a device to mix air and fuel for internal combustion engines in the proper ratio for combustion.