Namura Piston Rings for Yamaha YFM350 / YFM400 Models - 83.95mm - NA-40005-4R 2011 Polaris Ranger 800 4x4 Crew Part Number: WR101-043

Part Number: WR101-043

2001 Polaris Indy 340 Deluxe

1992 Honda XR600R

Part Number: PWRWC-H04-500

1980 Yamaha SR250

Namura Piston Rings for Yamaha YFM350 / YFM400 Models - 83.95mm - NA-40005-4R 2011 Polaris Ranger 800 4x4 Crew Part Number: WR101-043Namura Technologies Piston Rings Part Number: NA 40005 4R Piston Rings are an essential part of piston performance, engine efficiency, and durability. Namura piston rings are designed specifically for each application with the best materials and precise fitment. Composed of either a highly ductile cast iron or stainless steel alloy. Quality provide excellent wear resistance and a gas tight seal. Often overlooked and unglamorous, they are an essential