For 2007-2010 GMC Sierra 3500 HD 6.6L V8 Engine Cooling Fan Clutch 4 Seasons

2007 GMC Sierra 3500 HD Engine: 6.6L V8; Reverse Rotation|Severe Duty Thermal Fan Clutch;. 2008 GMC Sierra 3500 HD Engine: 6.6L V8; Reverse Rotation|Severe Duty Thermal Fan Clutch;. 2009 GMC Sierra 3500 HD Engine: 6.6L V8; Reverse Rotation|Severe Duty Thermal Fan Clutch;.