Namura Oversized Piston Kit for 2001-05 Yamaha YFM660R Raptor - 100.97mm - NA-40004-4 2016 Polaris Sportsman 570 X2 EPS 1998 Yamaha Big Bear 350

1998 Yamaha Big Bear 350 2x4

2013 Polaris Sportsman 800 EFI Med Yellow

Fits: 2001-05 Kawasaki KX85 (+2mm

2000 Honda TRX300FW FourTrax 4x4

Namura Oversized Piston Kit for 2001-05 Yamaha YFM660R Raptor - 100.97mm - NA-40004-4 2016 Polaris Sportsman 570 X2 EPS 1998 Yamaha Big Bear 350Namura 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