Description: 100% Brand New. Never Been Used Power Steering Pump Pulley Color:Black Pump Style: Saginaw Pulley Style: V-Belt Groove Quantity: 2 Pulley Attachment: Keyway Keyway Bore: 5/8" Pulley Material: Steel Outside Diameter: 5.750" Underdrive: No Fits Chevy 283-400 Pump with 5/8" Shaft Press Fit style pulley Double Groove 2 groove V-belt for PRESS FIT design. 3/4" bore diameter, 5-3/4" OD Groove width - 1/2" Water Pump Pulley Finish: Black Pulley Style: V-Belt .