Namura NX-20000-BK Top End Kit for 1998-2000 Kawasaki KX125, 2.124 in. Bore

Restore top-end performance with the Namura NX-20000-BK Top End Kit, designed for Kawasaki KX125 models equipped with Nikasil-plated cylinders. This complete kit includes the piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit, providing the essential components needed for a reliable top-end rebuild. The piston is designed for a 2.124-inch bore with a close-fit specification for the listed application.

The Namura NX-20000-BK piston uses a hypereutectic casting process that increases silicon content to help reduce expansion and improve wear resistance under elevated cylinder temperatures. Its MOS2, or Teflon and molybdenum, coated skirts use a rolled-on application process intended to create a stronger bond than conventional spray-on coatings. This coating helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation.

Additional piston features include a machined-smooth head that helps reflect combustion heat and reduce carbon buildup, along with an anodized dome engineered for increased heat resistance and durability. These design elements support consistent performance and long service life when installed with the proper clearances and related components. The kit fits 1998, 1999, and 2000 Kawasaki KX125 models with Nikasil-plated cylinders. Verify model year, cylinder condition, bore size, and manufacturer specifications before installation. Namura is the brand, and NX-20000-BK is the manufacturer and vendor part number.

Features:

• Complete top-end kit includes piston, rings, wrist pin, clips, top-end bearing, and gasket kit
• Designed for 1998-2000 Kawasaki KX125 models with Nikasil-plated cylinders
• 2.124-inch bore piston with a close-fit specification for the application
• MOS2 Teflon and molybdenum coated 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 provides increased heat resistance and durability
• Hypereutectic casting process supports reduced expansion and improved wear resistance
• Brand: Namura
• Manufacturer and vendor part number: NX-20000-BK