## Namura NA-40025-4 Complete Piston 103.97mm - Performance and Reliability The Namura NA-40025-4 piston kit is an excellent way to improve the performance and reliability of your motorcycle or ATV engine. This high-quality piston with a diameter of 103.97mm (+1mm oversize) offers significant advantages over standard pistons, ensuring longer engine life and better performance. ### Advanced Technologies for Maximum Performance Namura utilizes advanced technologies in the production of its pistons, which translates into their exceptional quality and durability. The MOS2 (Teflon/Molybdenum) coating on the piston skirt reduces friction and improves heat transfer, minimizing the risk of cold seizures. The smooth, machined piston head reflects combustion heat and reduces carbon buildup, contributing to increased power and fuel economy. The anodized piston dome increases resistance to high temperatures and ensures long-lasting durability. ### Precise Manufacturing and High Quality The Namura NA-40025-4 piston kit is manufactured using the hypereutectic casting method, which ensures higher silicon content, lower thermal expansion, and additional wear resistance. The kit includes an individually wrapped piston, a set of OEM quality rings, a piston pin, and circlips. ### Benefits of Choosing the Namura NA-40025-4 Piston: * **Increased engine performance and reliability:** Enjoy better performance and smoother engine operation. * **Longer engine life:** Advanced technologies and materials ensure extended piston and engine life. * **Fuel savings:** Reduced carbon buildup and improved heat transfer contribute to lower fuel consumption. * **Easy installation:** The kit includes all necessary components for installation. The +1mm oversize means that this piston is intended for cylinders that have been honed or bored. Make sure your cylinder diameter matches the requirements of this piston. Choose the Namura NA-40025-4 piston and experience the difference!