Part Type: Engine Cooling Fan Clutch. 1975 Chevrolet Monza Standard Rotation; Standard Duty Thermal Fan Clutch;. Fan Clutch. Standard Rotation Thermal Standard Duty Fan Clutch. Fan Clutch, Thermal. 1980 Chevrolet Monza Engine: 2.5L L4; Standard Rotation; Standard Duty Thermal Fan Clutch;.