NA-40012-BK Top End Kit 101.98/+0.01 9.2:1 Yam
NA-40012-BK Top End Kit 101.98/+0.01 9.2:1 Yam
Out of stock
Couldn't load pickup availability
NA-40012-BK Top End Kit 101.98/+0.01 9.2:1 Yam
Elevate your engine's performance with the NA-40012-BK Top End Kit, specifically designed for Yam models. This comprehensive kit is the ultimate solution for enthusiasts seeking enhanced power, durability, and efficiency in their machines.
Key Features:
- Complete Top End Kit: Includes a piston, rings, wrist pin, clips, top end bearing, and a gasket kit, ensuring you have everything you need for a successful upgrade.
- MOS2 (Teflon/Molybdenum) Coated Skirts: Our advanced rolled-on application process creates a bond ten times stronger than conventional spray coatings. This innovation promotes better heat transfer, reduces friction, and helps prevent cold seizures.
- Machined Smooth Heads: Designed to reflect combustion heat and minimize carbon buildup, these heads protect the piston while potentially boosting horsepower and fuel economy by up to 6%.
- Anodized Domes: With 75% more strength than non-anodized pistons, these domes offer superior heat resistance and longevity, making them an essential upgrade for any serious rider.
- Hypereutectic Casting Process: This advanced technique ensures higher silicon content, leading to reduced expansion rates and enhanced wear resistance, while also withstanding higher cylinder temperatures for improved reliability.
The NA-40012-BK Top End Kit is not just an upgrade; it's a transformation for your engine, delivering performance and reliability you can trust. Experience the difference today!
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

