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. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Ford Country Sedan: 1969, 1970, 1971, 1972, 1973, 1974] - [Ford Country Squire: 1969, 1970, 1971, 1972, 1973] - [Ford Custom 500: 1969, 1970, 1971, 1972, 1973] - [Ford Custom: 1969, 1970, 1971, 1972] - [Ford E-250 Econoline Club Wagon: 1975, 1976] - [Ford E-250 Econoline: 1975, 1976] - [Ford E-350 Econoline: 1975, 1976] - [Ford F-150: 1975, 1976] - [Ford F-250: 1975, 1976] - [Ford F-350: 1975, 1976] - [Ford Fairlane: 1969, 1970] - [Ford Falcon: 1970] - [Ford Galaxie 500: 1969, 1970, 1971, 1972, 1973] - [Ford Gran Torino: 1972, 1973] - [Ford LTD: 1969, 1970, 1971, 1972, 1973] - [Ford Mustang: 1969, 1970, 1971, 1972, 1973] - [Ford Ranch Wagon: 1969, 1970, 1971, 1972, 1973] - [Ford Ranchero: 1969, 1970, 1971, 1972, 1973] - [Ford Thunderbird: 1972] - [Ford Torino: 1969, 1970, 1971, 1972, 1973] - [Mercury Colony Park: 1970, 1971, 1972, 1973, 1974] - [Mercury Comet: 1969] - [Mercury Cougar: 1970, 1971, 1972, 1973, 1974] - [Mercury Cyclone: 1969, 1970, 1971] - [Mercury Marquis: 1970, 1971, 1972, 1973, 1974] - [Mercury Montego: 1969, 1970, 1971, 1972, 1973] - [Mercury Monterey: 1970, 1971, 1972, 1973, 1974]