Namura Piston Rings for 1987-06 Yamaha YFZ350 Banshee - 63.95mm - NA-40000R Piston Size_83.45mm 2018 Polaris Ranger 570

2018 Polaris Ranger 570

2022 Polaris RZR4 1000 XP Trail & Rocks Edition

Part Number: 4927M07700

2006 KTM 950 Adventure S

(1) 843M06640 piston kit

Namura Piston Rings for 1987-06 Yamaha YFZ350 Banshee - 63.95mm - NA-40000R Piston Size_83.45mm 2018 Polaris Ranger 570Namura Technologies Piston Rings Part Number: NA 40000R 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