Family-owned and operated since its 1946 founding in Syracuse, United Auto Supply has grown into a regional automotive parts distributor known for serving the trade rather than retail consumers. Its 40-location network supports professional customers across four states, backed by more than 1,500 local employees and a fleet of 400 delivery vehicles.
ECE R90
certification
Automotive of York, IncLocally owned since 1947, Automotive of York is a second-generation family business serving South Central Pennsylvania through seven NAPA Auto Parts stores. The Walton family acquired the original three stores in 1991, and today Cary and Braden Walton continue the company’s community-focused work, backed by two machine shops and a machinist team with more than 150 years of combined experience.YORK, PA
Diesel ProFrom a farmhouse basement in Glen Rock, Pennsylvania, Diesel Pro has grown into a family-owned diesel parts remanufacturer, distributor, and repair operation serving customers across the United States and Canada. Founded by Lance Donaldson in 1985 and now managed by his son Scott, the company remanufactures fuel-system components and turbochargers while running a full-service truck repair facility with 11 bays. Its 30,000-square-foot warehouse holds more than 100,000 parts, giving the long-standing local business an unusually broad reach.GLEN ROCK, PA
Standard Motor Products, IncFounded by the Sills family in 1919, Standard Motor Products manufactures and distributes replacement automotive parts while developing custom vehicle-control and thermal-management solutions for on- and off-highway equipment. Now headquartered in Long Island City, the century-old company employs more than 6,500 people across 54 facilities in North America, Europe and Asia. Its portfolio spans established aftermarket brands such as Standard and Four Seasons alongside engineered-solutions brands including Trombetta and Stabil.LONG ISLAND CITY, NY
Milliron Auto PartsFamily-owned and operated in Mansfield since 1954, Milliron Auto Parts recycles end-of-life vehicles and supplies tested used automotive parts, including ready-to-install OEM assemblies and remanufactured engines. Its local yard is also a regional Team PRP hub, connecting customers to inventory from 263 partner yards nationwide while maintaining Certified Green Vehicle Disposal practices. Milliron serves both full-service parts buyers and do-it-yourself customers through its You Pull & Save yard.MANSFIELD, OH