Based in Elgin, Ill., Elgin Industries has long been one of the transportation industry’s premier manufacturers of engine and chassis components. The company’s ultra-modern, fully-integrated manufacturing complex has earned IATF16949 and ISO14001 status and a broad range of quality awards and certifications from such leading customers as General Motors, Ford Motor Company, Navistar, Federal-Mogul Corporation, Mack Trucks and Harley-Davidson. Find Elgin rocker arms, roller rockers, and more below.