Description
The Namura Top End Kit (SKU 186-4009B) is a complete piston kit and top end rebuild solution for Yamaha engines, built for riders who want a reliable, spec-correct rebuild without hunting down individual parts. This kit fits a 94.96mm bore at a +0.01 oversize with an 11.4:1 compression ratio, making it a precise replacement for a worn or damaged top end. Everything goes together smooth because Namura includes the piston, rings, wrist pin, clips, top end bearing, and full gasket kit in one box. That’s the kind of complete package that saves you time and keeps your build on track.
- Keeps friction and heat in check with MOS2 coated skirts that bond 10 times stronger than spray-on coatings.
- Protects the piston crown with machined smooth heads that cut carbon buildup and can gain up to 6% more power.
- Built with anodized domes that are 75% stronger than non-anodized pistons for better heat resistance.
- Delivers hypereutectic piston Yamaha builders trust for reduced expansion rates and better wear resistance at high temps.
- Fits a 94.96mm bore at +0.01 oversize with all gaskets and hardware included for a complete top end rebuild.
Order the Namura Top End Kit for your Yamaha rebuild today at DDRV, authorized dealer.
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