NPR rings

[kingd]

Hi guys, I dont post here alot but im trying to find out some info on Nippon Piston Rings.
http://www.npr.co.jp/english/company/business.html

Ive been looking into the company and it seems they list alot of major manufacturers as customers. Im trying to find out If the oem Toyota rings are actualy NPR rings? Does anyone have any experience with NPR rings?

Any info would be greatly appriciated.

[cambelt]

You are correct, you will find on your genuine old toyota rings numbers and letters , N,s are NPR rings R,s are riken rings , there may be one more brand that toyota use but i cant think of it now.
1R is top ring 2R is second ring in RIKEN brand .
Dave

[kingd]

^^ thanks for the info mate,