Namura Oversized Piston Kit for 2000-08 Yamaha YFM400 models - 85.42mm - NA-40008-4 2002 Polaris Trail Boss 325 2004 Buell XB9R Firebolt

2004 Buell XB9R Firebolt

2004 Polaris SwitchBack 600

Part Number: 810405

2001 Honda TRX300EX Sportrax

Namura Oversized Piston Kit for 2000-08 Yamaha YFM400 models - 85.42mm - NA-40008-4 2002 Polaris Trail Boss 325 2004 Buell XB9R FireboltNamura 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