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) - [Ford Country Squire: 1974] - [Ford Custom 500: 1974, 1975, 1976, 1977] - [Ford E-250 Econoline Club Wagon: 1975, 1976] - [Ford E-250 Econoline: 1975, 1976] - [Ford E-350 Econoline: 1975, 1976] - [Ford Elite: 1975, 1976] - [Ford F-150: 1975, 1976] - [Ford F-250: 1975, 1976] - [Ford F-350: 1975, 1976] - [Ford Galaxie 500: 1974] - [Ford Gran Torino: 1974, 1975, 1976] - [Ford LTD: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978] - [Ford P-350: 1976] - [Ford P-400: 1976] - [Ford P-500: 1976, 1977] - [Ford Ranch Wagon: 1974] - [Ford Ranchero: 1974, 1975, 1976] - [Ford Torino: 1974, 1975, 1976] - [Mercury Colony Park: 1974] - [Mercury Cougar: 1974, 1975, 1976] - [Mercury Grand Marquis: 1975, 1976] - [Mercury Marquis: 1974, 1975, 1976] - [Mercury Montego: 1974, 1975, 1976] - [Mercury Monterey: 1974]