OE Solutions™ Front Driver Side Power Window Regulator and Motor Assembly (741-586) 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 on certain BMW models binds when the cable deforms over time. This Dorman OE FIX replacement features added tension springs, cable guides and sheathing to counteract elongation and resist reel binding. Designed using state of the art technology and with customers in mind.