Namura Piston Kit for Polaris 500 Models - 91.97mm - NA-50004 MPN_4066 (1) Adjuster screw

(1) Adjuster screw

1985-01 Yamaha YFM80 Badger

1999 Yamaha FZR600R

75mm Cylinder Stroke Volume Final Engine Displacement California Emissions FALSE Product Disclaimer You MUST measure the size of your cylinder BEFORE ORDERING

2020 Polaris RZR 900 FOX Edition

Namura Piston Kit for Polaris 500 Models - 91.97mm - NA-50004 MPN_4066 (1) Adjuster screwNamura Technologies Piston Kit Namura gives you a higher performance piston without the higher price MOS2 Coated Skirts increase heat transfer and reduce friction to eliminate cold seizures. Higher silicon content reduces expansion rates and increaseswear resistance. Machined Smooth Heads Reflect combustion heat and reduces carbon buildup. Namura piston kits come with the piston, a set of OEM quality rings, a wrist pin, and circlips. Why replace your