Rear Upper Window Molding by OER®. Material: Stamped Steel. When choosing a parts supplier, choose the name that means quality, Original Equipment Reproduction®. Each product is designed and manufactured to duplicate the original part as closely as possible. Most OER® products are officially licensed as authentic restoration products. Restore your vehicle’s look to its former glory with superior OER body parts. With these top-notch quality reproductions, you’ll get the ultimate in authentic quality and original appearance at an attractive price. Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.