OE Solutions™ Rear Driver Side Power Window Regulator and Motor Assembly (741-578) by Dorman®. Package Quantity: 1. Material: Metal and Plastic. Without Installation Hardware. Mouting Type: Bolt-On. Gear Material: Plastic. Without Installation Instructions. The original equipment window regulator fails when the cable binds because it has poor tension. This Dorman OE FIX replacement regulator incorporates cable tension springs to resist cable reel binding. Designed using state of the art technology and with customers in mind.