For 2003-2009 GMC C4500 Topkick Engine Cooling Fan Clutch 4 Seasons 2004 2005

2003 GMC C4500 Topkick Engine: 8.1L V8; Reverse Rotation; Severe Duty Thermal Fan Clutch;. 2004 GMC C4500 Topkick Engine: 8.1L V8; Reverse Rotation; Severe Duty Thermal Fan Clutch;. 2005 GMC C4500 Topkick Engine: 8.1L V8; Reverse Rotation; Severe Duty Thermal Fan Clutch;.