Brand New Standard Bore Namura Top End Rebuild Kit.

• Includes piston, rings, wrist pin, circlips, wrist pin bearing, and a top end gasket kit.
• Piston is for the standard bore (66.40mm), actual size of piston is 66.35mm.
• High-quality cast piston made with excellent materials to precise specifications.
• Made to meet or exceed OEM specifications.
• High-silicon content Hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing.
• Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy.
• Hard anodized crowns are 75% stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon/Molybdenum coated skirts.
• MOS2 (Teflon/Molybdenum) coated skirts perform at the highest standards, reducing friction and heat for added power and longevity.

Fits: 2016-2019 Yamaha YZ250X

**All returns must be in original condition, new and unused (just like it was received). A restocking fee (of up to 20%) may apply.**