Product Info Catalog Automotive Repair & Parts Belts & Pullys 1/2 x 4-Inch V-Groove Die-Cast Pulley 1/2 x 4-Inch V-Groove Die-Cast Pulley Request a Quote UPC: 96158400502 SKU: 113845 Model Number: 400A5 1/2" Bore x 4" Diameter, Single V-Groove Die Cast Pulley, For 4L Or 1/2" x 11/32" Belts, Hollow Head Set Screw.