Founded in 1922 as Harrisburg Stanley Spring Works, Dayton Parts manufactures and supplies replacement drivetrain and undercarriage components for commercial vehicles from its Pennsylvania headquarters. Its history began with leaf springs, and the company now serves spring shops, distributors, dealers and fleets across North America through manufacturing and distribution facilities in the United States and Canada. Dayton Parts became part of Dorman in 2021.
ISO 9001:2015
certification
Triangle Suspension Systems, IncSince 1919, Triangle Suspension Systems has made steel leaf springs and other undercarriage parts for heavy-, medium- and light-duty trucks and trailers. Founded in Pittsburgh’s Golden Triangle and based in DuBois, Pennsylvania since 1927, the company manufactures its springs in the United States and supports its North American market through more than 1,400 distributor locations. Triangle is an ISO 9001:2015-registered Marmon, Berkshire Hathaway company, with a veteran workforce and in-house technical support.DU BOIS, PA
Camerota Truck PartsFounded by Sam Camerota in 1960, Camerota Truck Parts remanufactures and distributes truck drivetrain components while providing repair, diagnostics, installation, and driveline services across the Northeast. Still family-owned and operated, the company has grown from a scrap recycling and used-parts yard into an eight-location business with more than 200 employees and a large off-highway operation. Its Enfield headquarters holds ISO 9001:2015 certification for drivetrain remanufacturing and distribution.VALLEY COTTAGE, NY
Dorman ProductsFamily-run Dorman Products has been solving automotive repair problems since 1918, developing aftermarket parts for the people and businesses that keep cars and trucks on the road. Its engineers are known for rethinking failure-prone original-equipment designs, often making repairs more accessible to technicians and vehicle owners. Based in Colmar, Pennsylvania, Dorman has grown its catalog to more than 118,000 products while retaining an entrepreneurial culture of contribution.COLMAR, PA
HDX RemanHDX Reman is a Pennsauken, New Jersey specialist focused on keeping heavy-duty truck fleets moving through remanufactured drivetrain components. The company supplies exchange-ready units to commercial partners such as OEMs and wholesale distributors, using technical knowledge and strict quality processes to support consistent performance.LEWISBERRY, PA