Auto parts manufacturers in Wisconsin
Wisconsin has 40 auto parts makers in EPA records, facilities that list codes for engines, electrical, steering, brake, transmission, seating, stamping and other vehicle parts. The most are in Milwaukee, Franksville and Eau Claire. That is 1% of the 3,097 such facilities nationwide, and Wisconsin ranks #15 of 46 states.
- Product
- Auto parts manufacturers
- Facilities
- 40
- State rank
- #15
- NAICS
- 336310 and 7 related codes
- Revised
- November 1, 2026
Facilities in Wisconsin
These are active facilities in EPA's ECHO database that list a code for engines, electrical, steering, brake, transmission, seating, stamping and other vehicle parts.
| Facility | City | What EPA lists |
|---|---|---|
| F G Products, Inc | Rice Lake | Other Motor Vehicle Parts Manufacturing |
| Cummins Emission Solutions | Stoughton | Other Motor Vehicle Parts Manufacturing |
| Cummins Filtration - Neillsville East | Neillsville | Other Motor Vehicle Parts Manufacturing |
| Cummins Filtrations | Mineral Point | Other Motor Vehicle Parts Manufacturing |
| Curt Manufacturing, LLC | Eau Claire | Other Motor Vehicle Parts Manufacturing |
| Donaldson Co Inc | Stevens Point | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Federal Mogul Piston Ring Inc | Manitowoc | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Fleet Guard Incorporated | Black River Falls | Other Motor Vehicle Parts Manufacturing |
| HB Performance Systems Inc-Es875 | Mequon | Motor Vehicle Brake System Manufacturing |
| J.w. Speaker Corp | Germantown | Motor Vehicle Electrical and Electronic Equipment Manufacturing |
| Kewaunee Fabrications LLC | Kewaunee | Other Motor Vehicle Parts Manufacturing |
| Ks Large Bore Pistons Inc | Marinette | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Leer Inc | New Lisbon | Other Motor Vehicle Parts Manufacturing |
| Mpi Engineered Technologies | Deerfield | Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing |
| Nelson Global Products Inc | Viroqua | Other Motor Vehicle Parts Manufacturing |
| Nelson Global Products Inc | Arcadia | Other Motor Vehicle Parts Manufacturing |
| Nelson Global Products- Black River Falls | Black River Falls | Other Motor Vehicle Parts Manufacturing |
| Safc Inc | Verona | Other Motor Vehicle Parts Manufacturing |
| Specific Heat | Franksville | Other Motor Vehicle Parts Manufacturing |
| Winsert Inc | Marinette | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Automotive Machine Works | Eau Claire | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Bei,llc | Franksville | Motor Vehicle Electrical and Electronic Equipment Manufacturing |
| Charter Automotive | Milwaukee | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Cummins Filtration - Bloomer | Bloomer | Other Motor Vehicle Parts Manufacturing |
| Engendren LLC | Franksville | Other Motor Vehicle Parts Manufacturing |
| Former Kenosha Engine Plant | Kenosha | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| H O Bostrom Co Inc | Waukesha | Motor Vehicle Seating and Interior Trim Manufacturing |
| Meritor | Oshkosh | Motor Vehicle Transmission and Power Train Parts Manufacturing |
| Milsco Mfg Co | Milwaukee | Motor Vehicle Seating and Interior Trim Manufacturing |
| Modine Mfg Co | Racine | Other Motor Vehicle Parts Manufacturing |
| Muth Company LLC | Sheboygan | Motor Vehicle Electrical and Electronic Equipment Manufacturing |
| Pentair Residential Filtration LLC | Milwaukee | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Power Packer | Westfield | Motor Vehicle Transmission and Power Train Parts Manufacturing |
| R E Phelon Co | Lomira | Motor Vehicle Electrical and Electronic Equipment Manufacturing |
| Rbc Manufacturing Corp | Wausau | Motor Vehicle Electrical and Electronic Equipment Manufacturing |
| Seats Inc | Reedsburg | Motor Vehicle Seating and Interior Trim Manufacturing |
| Seats Inc | Richland Center | Motor Vehicle Seating and Interior Trim Manufacturing |
| Tenneco Inc. | Waupun | Other Motor Vehicle Parts Manufacturing |
| Tramont Manufacturing LLC | Milwaukee | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
| Wells Mfg Corp Electronics Plt | Fond Du Lac | Motor Vehicle Electrical and Electronic Equipment Manufacturing |
Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.
Where they are
- Milwaukee: 4
- Franksville: 3
- Eau Claire: 2
- Black River Falls: 2
- Marinette: 2
- Rice Lake: 1
By product code
- Other Motor Vehicle Parts Manufacturing (NAICS 336390): 17
- Motor Vehicle Gasoline Engine and Engine Parts Manufacturing (NAICS 336310): 9
- Motor Vehicle Electrical and Electronic Equipment Manufacturing (NAICS 336320): 6
- Motor Vehicle Seating and Interior Trim Manufacturing (NAICS 336360): 4
- Motor Vehicle Transmission and Power Train Parts Manufacturing (NAICS 336350): 2
- Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing (NAICS 336330): 1
- Motor Vehicle Brake System Manufacturing (NAICS 336340): 1
All vehicles, aircraft and parts manufacturing in Wisconsin: 134 facilities and Census job counts.