Thermostat, 168 degree, with gasket. Tractors: Dexta, Super Dexta (1957-1965), 2000, 3000, 4000, 5000, 7000, (1965-1975), 2600, 3600, 4100, 4600, 5600, 5700, 6600, 6700, 7600, 7700 (1975-1981), 2610, 3610, 4110, 4610, 5610, 6610, 6710, 7610, 7710 (1981 & up), 8000, 8700, 9000, 9700 (1968-1978). Replaces 957E85775, C9NN8575C. (Fits: Ford Dexta, Super Dexta, 2000, 2600, 2610, 3000, 3600, 3610, 4000, 4100, 4110, 4600, 4610, 5000, 5600, 5610, 5700, 6600, 6610, 6700, 6710, 7000, 7600, 7610, 7700, 7710, 8000, 8700, 9000, 9700)