Namura Piston Rings for Yamaha YFM350 / YFM400 Models - 83.95mm - NA-40005-4R 2011 Polaris Ranger 800 4x4 Crew 1993 Harley-Davidson Heritage Softail Classic

1993 Harley-Davidson Heritage Softail Classic - FLSTC

2005 Yamaha YFM660 Grizzly

(1) 16x25x5 Seal

1992 Honda XR600R

Namura Piston Rings for Yamaha YFM350 / YFM400 Models - 83.95mm - NA-40005-4R 2011 Polaris Ranger 800 4x4 Crew 1993 Harley-Davidson Heritage Softail ClassicNamura 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