Namura Technologies NW-40003-2 Piston Kit - +0.50 Oversized to 80.40mm

Bore: 80.40mm
Sizing: 0.5mm Oversize

MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons. Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

Vehicle Fitment:

2000-2002 Yamaha GP1200 WaveRunner GP1200
1998-2000 Yamaha GP800 WaveRunner GP800
2003-2005 Yamaha GP800A WaveRunner GP800R
1999-2000 Yamaha XA1200 WaveRunner XL12 LTD
2002-2005 Yamaha XA1200A WaveRunner XLT1200
2000-2001 Yamaha XA800 WaveRunner XL800
2002-2004 Yamaha XA800A WaveRunner XLT800
2000-2001 Yamaha (Boats) XRT1200 XR1800