Specifications: 100% Brand New,never been used Color:Silver 5/8" Shaft Hole w/ Keyway - (Will NOT Work on Press-on Pulleys) 5-3/4" Diameter Double Groove Pulley Style: V-Belt Pulley Attachment: Keyway Pulley Material: Steel Chrome Finish Fits Chevy 283-400 Pump Press Fit style pulley Package including: 1 x Pump Power Steering Pulley As shown in the picture Fitment: Fits all Chevy and GM 1955-1972 Single Groove units .