## Namura NA-40001-3 Complete Piston Kit - 64.70mm Boost the performance and reliability of your motorcycle or ATV with the Namura NA-40001-3 complete piston kit, featuring a 64.70mm diameter. This high-quality piston kit offers an excellent alternative to original equipment manufacturer (OEM) parts, providing significant cost savings compared to replacing the entire cylinder. Namura offers solutions in standard size, high-compression versions, and various oversizes to perfectly match your vehicle's needs. ### Advanced Technologies for Enhanced Performance The Namura NA-40001-3 piston kit utilizes several advanced technologies to ensure optimal engine performance: * **MOS2 (Teflon/Molybdenum) Coating:** The piston skirts are coated with MOS2, minimizing friction, improving heat transfer, and preventing cold seizures. * **Machined Smooth Crown:** The specially machined piston crown reflects combustion heat and reduces carbon buildup, resulting in increased horsepower and fuel economy of up to 6%. * **Anodized Crown:** Anodizing the piston crown enhances its resistance to high temperatures and ensures longer lifespan. * **Hypereutectic Casting:** Thanks to the hypereutectic casting process, the piston features higher silicon content, reduced thermal expansion, and increased wear resistance. ### Kit Contents and Installation The Namura NA-40001-3 piston kit includes an individually wrapped piston, a set of OEM quality rings, a wrist pin, and circlips. The 0.75mm oversize refers to the difference between the nominal piston diameter and the cylinder bore it operates in. Installation by a qualified mechanic is recommended. ### Benefits of Choosing Namura: * **Improved engine performance and reliability.** * **Extended engine life.** * **Cost savings compared to cylinder replacement.** * **Namura's quality and precision engineering.**