a part that is produced by someone other than the Original Equipment Manufacturer (OEM)
A vehicle replacement part manufactured by a company other than the vehicle maker. These parts are less expensive than the original equipment manufacture (OEM) part. There is ongoing controversy as to whether aftermarket parts are equal to or inferior to OEM parts. Individual states have various rules and regulations regarding the use of aftermarket parts.
A part of similar kind and quality not made by the original manufacturer of the vehicle.
goods not for use as original equipment in the production of light-duty vehicles or heavy-duty vehicles, ie. products and services used in the repair and maintenance of these vehicles.
any new repair part not produced by the original vehicle manufacturer.
After-market parts are made by a company other than the manufacturer of the vehicle.