Part Type: Engine Cooling Fan Clutch. Compatible Years: 1966 1967 1968 1969 1970 1971 1972 1973 1974. Fan Clutch. Standard Rotation Thermal Standard Duty Fan Clutch. Fan Clutch, Thermal. 1966 GMC K15/K1500 Pickup Standard Rotation; Standard Duty Thermal Fan Clutch;.
