For 100 years, Hastings Manufacturing Company has been a world power in piston ring engineering and manufacturing. Hastings revolutionized oil control ring design with the invention of the Hastings Flex Vent® oil control ring, and it is now the accepted standard in the industry. Hastings offers piston rings for nearly any application worldwide—from automotive and truck, to agriculture, industrial, small engine, as well as marine and high performance engine applications.