Top 21 Automotive Parts Manufacturers in Wisconsin 2026
Last updated
FirmsLedger lists 21 automotive parts manufacturers headquartered in Wisconsin. That ranks 7th among the 48 states with listings, behind Illinois (33), Alabama (30) and 4 other states. The largest clusters are in Oshkosh (3), Green Bay (2), Madison (2) and Waukesha (2), and the other 12 are in 11 more cities. Oshkosh listings include Topsy Products, BEAM Truck Parts and Competition Products.
By specialty, Wisconsin has engine components (4) and wiring harness (2) listings.
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| Wisconsin Metal Parts | Waukesha | Metal Fabrication | (262) 524-9100 | wisconsinmetalparts.com |
| MFG Supply | Medford | Mail-order catalog sales | (800) 826-8563 | mfgsupply.com |
| Oshkosh Airport Products | Neenah | ARFF truck design and manufacturing | (920) 235-9151 | oshkoshairport.com |
| Pegasus Auto Racing Supplies | New Berlin | Custom hose assembly | (262) 317-1234 | pegasusautoracing.com |
| Wesdon Automotive is a Wesdon Industries LLC Company | West Bend | Exhaust kit manufacturing | (888) 977-3348 | wesdonautomotive.com |
| Alpha Automotive | Green Bay | OEM parts distribution | (920) 434-0772 | alphaautomotive.com |
| American Motive Products | Green Bay | Forklift battery sales | (855) 342-0123 | americanmotiveproducts.com |
| Assembly Products | Westfield | Cold heading | (608) 296-4780 | assemblyproducts.com |
| Certified Parts Corporation | Edgerton | Legacy brand acquisition and revival | (608) 884-0770 | certifiedpartscorp.com |
| I.P.W. Auto Parts | Wauwatosa | Auto parts retail | (262) 783-7303 | ipwautoparts.com |
All Automotive Parts in Wisconsin
Pegasus Auto Racing Supplies
New Berlin, Wisconsin
Pegasus Auto Racing Supplies operates from New Berlin, Wisconsin, where it has served the motorsports community since 1980. In addition to stocking products from brands like Beta Tools, Turbosmart, Setrab, and Schroth, Pegasus offers custom hose assembly services and technical product support to help customers select the right components.
Wesdon Automotive is a Wesdon Industries LLC Company
West Bend, Wisconsin
Wesdon Automotive, a division of Wesdon Industries LLC, has operated from West Bend, Wisconsin since 2004. The company was established to supply premium exhaust components for a wide range of vehicles, though the founders are not publicly named.
Alpha Automotive
Green Bay, Wisconsin
Alpha Automotive LLC operates from Green Bay, Wisconsin, where it supplies insurance-quality, reconditioned, and surplus OEM parts. The business is staffed by a team with over 25 years of combined automotive experience, though the founding year and ownership structure are not publicly disclosed.
Certified Parts Corporation
Edgerton, Wisconsin
Certified Parts Corporation (CPC) was founded in 1982 by James Grafft in Edgerton, Wisconsin. The company traces its roots to 1974 when Grafft worked at Fox Corporation in Janesville and recognized the need for continuous parts supply for manufacturers that had ceased operations.
- Mega PartsCoon Valley, Wisconsin
- PDI Waukesha - Federated Auto PartsWaukesha, Wisconsin
- RockAuto, LLCMadison, Wisconsin
- Topsy ProductsOshkosh, Wisconsin
- Worldwide Auto PartsMadison, Wisconsin
- Automotive Supply CoBrillion, Wisconsin
- BEAM Truck PartsOshkosh, Wisconsin
- Behling Racing EquipmentButler, Wisconsin
- Competition ProductsOshkosh, Wisconsin
- Performance UnlimitedWest Bend, Wisconsin
- Ascent Battery Supply LLCGlendale, Wisconsin
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Other industries in Wisconsin
- Electrical Equipment & Components in Wisconsin
- Mechanical Components in Wisconsin
- Plastics & Packaging in Wisconsin
- Metal Fabrication in Wisconsin
- Electronics & Semiconductor in Wisconsin
- Textile & Apparel in Wisconsin
- Furniture & Woodworking in Wisconsin
- Food & Beverage Processing in Wisconsin
- Medical Devices in Wisconsin
- Pharmaceutical in Wisconsin
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