We offer the complete range of NPR piston rings. Piston rings are available for most import engines including Acura, Honda, Mitsubishi, Nissan and Toyota. Nippon Piston Ring is one of the world's premiere manufacturers of pistons and piston rings, supplying both original equipment manufacturers and the aftermarket. Why choose NPR? Parts manufacturers who supply the OEM's are on the automotive forefront in both technology and quality. Below is only a partial offering. Don't see what you're looking for? Contact us for your application.