Grant Piston Rings supplies engine parts to the automotive industry. The company does business throughout the globe. Grant Piston Rings manufactures piston ring sets for passenger cars, light trucks, industrial engine, air brake compressors and motorcycles. Grant produces cast pistons using either eutectic or hypereutectic material. All genuine Grant pistons have their crowns stamped with the appropriate size and pin axis eccentricity direction. Each piston also has a diamond finish, wrist pins and circlips and a plain, tin-plated, molybdenum-coat or crown-anodized finish. Grant Piston Rings was established in 1922. The company has locations throughout the United States, including Anaheim, Calif.