Namura Oversized Piston Kit for 1999-06 Honda TRX350 Rancher - 79.46mm - NA-10007-4 2002 KTM 520 Big Bore pistons increase displacement

Big Bore pistons increase displacement and power while maintaining stock compression ratios

1979 Kawasaki KE100

2002 Yamaha YZ85

1980-81 Yamaha XS850LG Midnight

2001 Kawasaki KLF300 Bayou 4X4

Namura Oversized Piston Kit for 1999-06 Honda TRX350 Rancher - 79.46mm - NA-10007-4 2002 KTM 520 Big Bore pistons increase displacementNamura 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