- Web-Cam Inc
- Webasto Sunroofs Inc
- Webasto Sunroofs Inc
- WEBB Wheel Products Inc
- WEBB Wheel Products Inc
- Weil Oldsmobile Cadillac Inc
- Welles Manufacturing Corp
- Wellman Products Group Inc
- Wells Manufacturing Corp
- WERX
- Wescott Enterprises Inc
- West Amity Auto Parts Co
- West Loop Dodge
- West Medford Auto & Hardware
- West-Side Radiator Svc
- Westco Products Inc
- Westex Automotive Corp
- Westling Manufacturing Co
- Wetsand Motorsports
- Wheel Works
- Wheels In Motion
- Whirlaway Corp
- White Products
- Wholesale Express
- Wholesale Tire Ctr North
- WIA America
- WIA America
- Will-Fix Inc
- Willhoite's Camshaft Exchange
- Williams Brothers Inc
- Williams Controls Inc
- Williams Motor Co
- Willis Manufacturing Inc
- Willow Springs Co
- Willy's Replacement Parts
- Wind Walkers Motorcycle
- Wisconsin Machining Div
- Wix Corp
- Wolo Manufacturing Corp
- Woodbridge Corp
- Woodbury Automotive Warehouse
- World Class Suppliers
- World PAC
- Worldpac
- Worthington Precision Metals
- Worthington Precision Metals
- Wrightwood Racing
- Wynne Exhaust Distr
- X-Rad Northwest
- Y H America Inc
- Yankee Warehouse Inc
- Yazaki North American
- Yerger Industries Inc
- Yesterday's Chevy Parts
- Yeterian Auto Parts
- Yoder Brake & Mfg Co
- Yorozu
- Yorozu America Corp
- Young Automotive Distributors
- Young's Gear Inc
- YSK Corp
- Z Rated Racing
- Zemer Engineering Co
- Zenith Auto Parts Corp
- Zf Batavia LLC
- ZF Industries
- ZF-Lemforder Corp
- Zua Auto Parts
