NPR Pistons

NIPPON PISTON RING CO., LTD. is a reputable manufacturer of replacement parts for domestic/overseas automobile, marine and land engines, such parts as piston rings, cylinder liners, and valve train parts (composite camshafts, valve seat inserts, and valve locker arms). Building on its accumulations of tribological technology and experience, NPR has been moving into products other than engine parts, such as compressor parts for household electric appliances and parts for industrial machinery.

The company's main products for automobiles include piston rings, cylinder liners, valve seat inserts, camshafts, valve rocker arms, component parts to strengthen aluminum body, fuel injector parts and synchronizer rings. NPR offers products for marine engine and the other products including marine, industrial large size piston rings, sealing rings and compressor parts. The company also provides metal injection molding parts [MIM] like industrial equipment parts, automobile parts, OA equipment parts, equipment for leisure parts, etc.