Namura NX-30002K Top End Kit for 2004–2008 Suzuki RM125, 53.95 mm Standard Bore

Restore top-end performance with the Namura NX-30002K Top End Kit, designed for Suzuki RM125 motorcycles equipped with a standard 53.95 mm bore and Nikasil-plated cylinders. This complete kit includes the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a comprehensive replacement solution. The kit is suited for 2004, 2005, 2006, 2007, and 2008 Suzuki RM125 models.

The Namura piston uses a hypereutectic casting process that increases silicon content to help control expansion, improve wear resistance, and withstand elevated cylinder temperatures. Its MOS2, or Teflon and molybdenum, coated skirts use a rolled-on application process designed 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 support durability and combustion efficiency. The machined smooth head helps reflect combustion heat and reduce carbon buildup, while the anodized dome improves heat resistance and overall piston strength. These design elements help protect the piston crown and support reliable performance in demanding motocross applications. Verify the cylinder bore, model year, and existing top-end configuration before installation to ensure proper fitment.

Manufacturer part number: NX-30002K. Vendor part number: 185-3002. Brand: Namura.

Features:

• Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
• Fits 2004–2008 Suzuki RM125 models with a standard 53.95 mm bore and Nikasil-plated cylinder
• MOS2 Teflon and molybdenum 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, added wear resistance, and improved high-temperature capability