ElringKlinger AG is a supplier of original equipment parts for vehicles and engines. The company produces cylinder heads and specialty gaskets, plastic housing modules, shielding components for engines, transmissions, exhaust systems, exhaust gas purification technology as well as battery and fuel cell components. Erling Klinger also offers its product to customers in the aftermarkets. The segment of the company revenue is the original equipment division, while the majority of sales are generated outside its domestic German market.