Manufacturing of heavy-duty trucks (14,001 lb or more), tractors (26,001 lb or more), and heavy-duty truck, tractor, and bus chassis

Facility	City	State	Employees	Status
Adams Thermal Systems INC	Canton	SD	100–499	● ACTIVE
Aircraft Precision Products, INC.	Ithaca	MI	20–99	● ACTIVE
BPBorla Performance Industries INC	Johnson City	TN	100–499	● ACTIVE
Chardam Gear Company, INC.	Sterling Heights	MI	—	● ACTIVE
Grover Corporation	Glendale	WI	20–99	● ACTIVE
Welker Engineered Products CO	Troy	MI	20–99	● ACTIVE
Gale Banks Engineering	Azusa	CA	—	● ACTIVE
Kold-ban International LTD	Lake in the Hills	IL	20–99	● ACTIVE
Nichols Portland, INC.	Saint Marys	PA	—	● ACTIVE
Oetiker Ny, INC	Lancaster	NY	100–499	● ACTIVE
Roush & Yates Racing Engines LLC	Mooresville	NC	100–499	● ACTIVE
Skilled Manufacturing, INC	Traverse City	MI	—	● ACTIVE
Walker Products, INC.	Pacific	MO	—	● ACTIVE
West Electronics INC	Poplar	MT	—	● ACTIVE
Winsert, LLC	Marinette	WI	—	● ACTIVE
BMBig Mac Enterprises, LLC.	Houston	TX	—	● ACTIVE
Fulford Manufacturing Company	Riverside	RI	—	● ACTIVE
HIHambaryan Investments, INC	North Hollywood	CA	—	● ACTIVE
Improved Racing Products, LLC	Orlando	FL	—	● ACTIVE
Katech Engineering LLC	Clinton Township	MI	—	● ACTIVE
Mahle Aftermarket INC.	Olive Branch	MS	—	● ACTIVE
NNNiterra North America, INC.	Wixom	MI	100–499	● ACTIVE
PTPhoenix Trading INC.	Rockville	MD	—	● ACTIVE
PAPitt Auto Electric CO	Allison Park	PA	—	● ACTIVE
Southwest Radiator Shop, INC	Little Rock	AR	—	● ACTIVE

FactoryRegistry lists 363 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced heavy-duty trucks (14,001 lb or more), tractors (26,001 lb or more), and heavy-duty truck, tractor, and bus chassis, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.