What do the terms OEM and OES mean?
OEM stands for Original Equipment Manufacturer, and OES stands for Original Equipment Supplier. Car manufacturers buy many of their parts from outside vendors. For many items the parts manufacturer will sell through two distribution channels: one to the car manufacturer and another to wholesale parts distributors. This means the same part will often be at the car dealer’s parts department in their box, and the identical part will be packaged under the part manufacturer’s name. As you might suspect, the price will almost always be lower when it is not packaged in the car manufacturer’s box.
