Fan spacers position the fan closer to the radiator or fan shroud and away from pulleys. - 3" Billet Aluminum Fan Spacer - Anodized Black - Includes bushing and 4 bolts and 4 washers - Bolt Length 3-3/4" (Bottom of Head to end of Bolt) - Spacer Flange Diameter: 2 3/4" - Fan Side: 5/8" and includes 5/8" ID x 3/4" OD Bushing - Two Four Bolt patterns - Pattern 1: 1-1/2" Spacing - Pattern 2: 1-1/4" Spacing - Bryke Part#: 603-103