3-1/4" dia. V-belt pulley mounts directly to the front side of water pump pulley to drive the power steering pump at optimum speed during high RPM racing conditions Machined on CNC equipment from premium-grade billet aluminum fior dead-accurate concentricity Hard-coat blue anodized finish extends service life Deep "V" groove is machined to retain belt in all engine RPM ranges Includes all mounting hardware Designed for use with 36° x 17/32 V-belts: also accepts 38° belts Use with Moroso No. 64900, 64901 or 64902 or other aftermarket Water Pump Pulleys, Power Steering and Crankshaft Pulleys for optimum belt retention, alignment and speed