EXHIBIT 21 SUBSIDIARIES ------------ City Truck and Trailer Parts of Alabama, Inc., an Alabama Corporation City Truck and Trailer Parts of Alabama, L.L.C., an Alabama Limited Liability Company City Truck and Trailer Parts of Tennessee, Inc., a Tennessee Corporation City Friction, Inc., an Alabama Corporation Truck & Trailer Parts, Inc., a Georgia Corporation Truckparts, Inc., a Connecticut Corporation Associated Brake Supply, Inc., a California Corporation Associated Truck Center, Inc., a California Corporation Onyx Distribution, Inc., a California Corporation Associated Truck Parts of Nevada, Inc., a Nevada Corporation Freeway Truck Parts of Washington, Inc., a Washington Corporation Tisco, Inc., a California Corporation Tisco of Redding, Inc., a California Corporation Active Gear, L.L.C., a Washington Limited Liability Company Superior Truck & Auto Supply, Inc., a Massachusetts Corporation QDSP Holdings, Inc., a Delaware corporation Quality Distribution Service Partners, Inc., a Delaware corporation Automotive Sales Company, Inc., a Delaware corporation City Spring Works, Inc., a Delaware corporation Fleetpride, Inc., a Delaware corporation Holt, Incorporated a Delaware corporation SLM Power Group, Inc., a Delaware corporation Truck City Parts, Inc., a Delaware corporation Universal Joint Sales Company, Inc., a Delaware corporation Wheatley Truck Parts, Inc., a Delaware corporation CB Acquisition Sub, Inc., a Delaware corporation New England Truck & Auto Service, Inc., a Massachusetts corporation TBS, Incorporation, an Arizona corporation Four-T Sales & Service, Inc., a Nebraska corporation Stats Remanufacturing Center, Inc., a Nebraska corporation Power Export Distributing Company, a Texas corporation Power Equipment International, Inc., a Texas corporation Parts Management Company, a Texas corporation Parts Holding Company, a Nevada corporation Specialized Sales & Service, Inc., and Oregon corporation Parts Distributing Company, Ltd., a Texas Limited partnership Wheels and Brakes, Inc., a Georgia corporation Specrite Brake Company, a Georgia corporation. Parts Distribution Company (U.K.) Limited, a United Kingdom corporation Power Equipment de Mexico, S.A. de C.V., a Mexico corporation Avon Exports Limited, a United Kingdom corporation