Powered By Subcompanies. Gem Auto Parts Powered By Parts Authority. Overview. Parts Authority, founded in 1973, is a leading national distributor of automotive replacement parts, tools/equipment and transmissions. Headquartered in Long Island, New York, Parts Authority is rapidly expanding, and today has more than 200 locations servicing customers in New York, New Jersey, Pennsylvania, Maryland, Washington DC, Virginia, Ohio, Georgia, Florida, Te...
