Namura NX-20014-BK Top End Kit for Kawasaki KX100, 52.45 mm Bore

The Namura NX-20014-BK Top End Kit is designed for Kawasaki KX100 models equipped with a Nikasil-plated cylinder. This complete replacement kit includes the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit needed for a reliable top-end rebuild. The kit is sized for a 52.45 mm bore and is engineered to match the fitment requirements of 2014–2020 Kawasaki KX100 motorcycles.

The piston uses a hypereutectic casting process that increases silicon content to help control expansion, improve wear resistance, and withstand higher cylinder temperatures. Its MOS2, or Teflon/molybdenum, coated skirts use a rolled-on application process designed to create a strong bond while reducing friction, improving heat transfer, and helping minimize cold-seizure risk. A machined smooth head helps reflect combustion heat and reduce carbon buildup, supporting dependable performance and piston protection.

The anodized dome increases heat resistance and durability compared with a non-anodized piston, making this Namura top-end assembly a practical choice for replacement or engine restoration. Verify the cylinder condition, bore specification, and required clearance before installation. This kit fits 2014, 2015, 2016, 2017, 2018, 2019, and 2020 Kawasaki KX100 models. Manufacturer part number: NX-20014-BK. Vendor part number: 185-2014B.

Features:

• Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
• 52.45 mm bore size for Kawasaki KX100 models with Nikasil-plated cylinders
• MOS2-coated piston skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
• Machined smooth piston head helps reflect combustion heat and reduce carbon buildup
• Anodized piston dome improves heat resistance and durability
• Hypereutectic casting process provides controlled expansion and enhanced wear resistance
• Fits 2014–2020 Kawasaki KX100 motorcycles
• Brand: Namura
• Manufacturer part number: NX-20014-BK
• Vendor part number: 185-2014B