Part Type: Engine Cooling Fan Clutch. Compatible Years: 1977 1978. 1978 GMC K35 Engine: 5.7L V8; Standard Rotation; Optional Non-Thermal Fan Clutch;. 1977 GMC K35 Engine: 4.8L L6; Standard Rotation; Optional Non-Thermal Fan Clutch;.
4 Seasons Engine Cooling Fan Clutch For 1973-1974 Chevrolet P20 Van 4.8L L6
4 Seasons Engine Cooling Fan Clutch For 1966 Chevrolet P20 Series 4.1L L6
4 Seasons Engine Cooling Fan Clutch For 1966 GMC PB15 Series 4.1L L6
4 Seasons Engine Cooling Fan Clutch For 1978-1986 Chevrolet K30 4.8L L6
4 Seasons Engine Cooling Fan Clutch For 1970-1974 Chevrolet P20 Van 4.1L L6
4 Seasons Engine Cooling Fan Clutch For 1968-1974 Chevrolet P30 Van 4.8L L6
