NX-40025-4K, .040 Over Top End Repair Kit for Yamaha 1999-2001 YZ250 67.40mm
$79.95
$79.95
$
33
.99
$33.99
- Manufactured by Namura and Made in Taiwan
- Kit includes piston, rings, pin, clips, wrist pin bearing & top end gasket kit (you get exactly what is pictured)
- Cast piston has super-high silicone content for additional strength. Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life. Piston dome is anodized for superior heat resistance and longer lifespan
- Kit is for .040 over bore size - 67.40mm. Piston is 67.35mm. Compression ratio of 10.9:1
- Namura gaskets use performance materials to increase durability and provide greater reliability. Includes all gaskets pictured to rebuild top end
