Motorcraft Engine Coolant Thermostat RT-1139 Fits select: 1975-1996 FORD F150, 1966-1968 FORD MUSTANG

Stainless steel or brass bridge and spring frame is channel-constructed for strength and rigidity. Tapered-end stainless steel pistons feature flexible elastomeric boots. Streamlined venturi nozzle for maximum coolant flow. Mounting flange is designed for an optimal fit in the engine housing. Stroke-tested, heat-tested, pressure-tested and endurance-tested in real-world conditions to 10-year/150, 000 miles equivalent. Motorcraft thermostats are designed to exacting ford original equipment specifications to maintain recommended coolant temperature for optimal engine temperature and heater performance. Vehicle linkages car/Truck ford bronco: 1973 - 1996 country squire: 1987 - 1991 e-100 Econoline: 1970 - 1983 e-100 Econoline club wagon: 1975 - 1983 e-150 Econoline: 1975 - 1996 e-150 Econoline club wagon: 1975 - 1996 e-200 Econoline: 1970 - 1974 e-250 Econoline: 1975 - 1996 e-250 Econoline club wagon: 1975 - 1991 e-300 Econoline: 1970 - 1974 e-350 Econoline: 1975 - 1996 e-350 Econoline club wagon: 1977 - 1996 explorer: 1996 - 2001 f-100: 1968 - 1983 f-150: 1975 - 1996 f-250: 1968 - 1996 f-250 HD: 1997 f-350: 1968 - 1997 f-500: 1975 - 1977 free star: 2004 - 2007 LTD: 1984 - 1986 LTD crown Victoria: 1987 - 1991 mustang: 1964 - 1968, 1984 - 1995 ranchero: 1960 - 1968, 1978 thunderbird: 1986 - 1988, 1991 - 1993 Windstar: 1998 - 2003 Lincoln continental: 1986 - 1987 mark VII: 1986 - 1992 town car: 1986 - 1990 mercury capri: 1984 - 1986 colony park: 1987 - 1991 cougar: 1986 - 1988, 1991 - 1993 grand marquis: 1984 - 1991 Monterey: 2004 - 2007 mountaineer: 1997 - 2001.

Engine Coolant Thermostat

Fits Select:
1986-1996 FORD F150 8 Cyl 5 L
1966-1968 FORD MUSTANG 8 Cyl 4.7 L
1998-2003 FORD WINDSTAR 6 Cyl 3.8 L
1976-1977,1979-1997 FORD F250 8 Cyl 5.8 L
1984-1995 FORD MUSTANG 8 Cyl 5 L
2004-2005 FORD FREESTAR 6 Cyl 3.9 L
1977-1979 FORD F150 8 Cyl 5.8 L
1996-2001 FORD EXPLORER 8 Cyl 5 L
1978-1981,1984,1990-1996 FORD BRONCO 8 Cyl 5.8 L
1980-1985 FORD F150 6 Cyl 4.9 L
2006-2007 FORD FREESTAR 6 Cyl 4.2 L
1977-1979 FORD F100 8 Cyl 5 L
1978 FORD F250 8 Cyl 6.6 L
1997-2001 MERCURY MOUNTAINEER 8 Cyl 5 L
1979-1997 FORD F350 8 Cyl 5.8 L
2004-2007 MERCURY MONTEREY 6 Cyl 4.2 L
1986-1990 LINCOLN TOWN CAR 8 Cyl 5 L
1975-1982,1991-1992,1994-1996 FORD ECONOLINE 8 Cyl 5.8 L
1975-1976 FORD F150 8 Cyl 5.9 L
1975 FORD F250 8 Cyl 5.9 L
1973-1977,1982-1983,1986-1989 FORD BRONCO 8 Cyl 5 L
1987-1991 FORD CROWN VICTORIA 8 Cyl 5 L
1968-1974 FORD F100 6 Cyl 3.9 L
1976 FORD F100 8 Cyl 5.8 L
1980-1983 FORD F100 6 Cyl 4.9 L