Nippon Piston Ring (NPR) Performance Parts

NIPPON PISTON RING CO., LTD. was e stablished 1934 and is headquartered Saitama, Japan. Piston rings, cylinder liners, valve seat inserts, camshafts, valve rocker arms, fuel injector parts and synchronizer rings.

NPR products are widely used in all kinds of engines due to their high quality backed up by proven technology and an abundant line-up.

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We’re off and racing!

Our new website is here and like any good project we still need to do some tinkering under the hood.

If you encounter any speedbumps please get in touch and our team.