Part Type: Ambient Air Temperature Sensor. Coolant Temperature Sensor; Sensor; Sensors. 1981 Ford F-250 Engine: 4.9L L6; Alternate Number;. Coolant Temperature Sensor. Compatible Years: 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997.
