This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life. Vehicle model years this part fits (be sure to check your vehicle trim using the Amazon garage) - [American Motors Ambassador: 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974] - [American Motors American: 1967, 1968] - [American Motors AMX: 1968, 1969, 1970, 1978, 1979] - [American Motors Concord: 1978, 1979] - [American Motors Gremlin: 1972, 1973, 1974, 1975, 1976] - [American Motors Hornet: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977] - [American Motors Javelin: 1970, 1971, 1972, 1973, 1974] - [American Motors Marlin: 1967] - [American Motors Matador: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978] - [American Motors Pacer: 1978, 1979] - [American Motors Rebel: 1967, 1968, 1969, 1970] - [American Motors Spirit: 1979] - [Jeep Cherokee: 1974, 1975, 1976, 1977, 1978, 1979] - [Jeep CJ5: 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979] - [Jeep CJ6: 1972, 1973, 1974, 1975] - [Jeep CJ7: 1976, 1977, 1978, 1979] - [Jeep Commando: 1972, 1973] - [Jeep J10: 1974, 1975, 1976, 1977, 1978, 1979] - [Jeep J-100: 1971, 1972, 1973] - [Jeep J20: 1974, 1975, 1976, 1977, 1978, 1979] - [Jeep J-2500: 1971, 1972, 1973] - [Jeep J-2600: 1971, 1972, 1973] - [Jeep J-3800: 1971] - [Jeep J-4500: 1971, 1972, 1973] - [Jeep J-4600: 1971, 1972, 1973] - [Jeep J-4700: 1971, 1972, 1973] - [Jeep J-4800: 1971, 1972, 1973] - [Jeep Wagoneer: 1972, 1973, 1974, 1975, 1976, 1977, 1978] - [Oldsmobile 442: 1964] - [Oldsmobile Cutlass: 1964] - [Oldsmobile F85: 1964] - [Oldsmobile Jetstar 88: 1964] - [Oldsmobile Vista Cruiser: 1964]