This power window regulator with motor assembly is designed to fit the rear left or rear driver side of a BMW 323i, 328i, or M3. It is made of plastic and galvanized steel materials and operates electrically. The manufacturer part number for this product is 748468 and it replaces OEM part numbers 67626927025 and 51357140589. This item is not a vintage part and is not meant for universal fitment. However, please note that it comes with a California Prop 65 warning. It is a high-quality replacement part for your vehicle's window motor and regulator assembly. Exact item is shown. New open box without original packaging. Has 5 pin connector. Item length 20 inches. Made in China. No returns if installed. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.