Namura CX-40000 Cylinder for Yamaha YZ125

• Manufactured by Namura & Made in Taiwan
• Kit includes 2 pistons, ring sets, pins & clips (you get exactly what is pictured)
• Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life
• Kit is for standard bore size - 64.00mm & Piston is 63.94mm
• High compression kit

Upgrade the top end of your Yamaha YZ125 with the Namura CX-40000 Cylinder, designed to provide a dependable replacement for a worn, damaged, or out-of-specification cylinder. This precision-manufactured component supports proper piston movement, combustion sealing, and engine performance when installed with compatible top-end components. It is a practical choice for repair, restoration, and routine engine maintenance.

The Namura CX-40000 is engineered for fitment with Yamaha YZ125 applications. Before ordering, verify year, model, and engine configuration to ensure compatibility with your motorcycle and related parts. Professional installation is recommended, including inspection of the piston, rings, gaskets, cylinder surface, and crankshaft components before assembly. Following the manufacturer’s service procedures and break-in requirements helps promote reliable operation and long service life.

Sold individually, this Namura cylinder is supplied as a replacement engine component for the Yamaha YZ125. Pair it with the appropriate piston kit, ring set, gasket set, and other required hardware for a complete top-end service. Use the exact application specifications and installation instructions for your motorcycle to ensure correct clearances and dependable performance.

Features:

• Brand: Namura

• Part Number: CX-40000

• Application: Yamaha YZ125

• Component Type: Replacement engine cylinder

• Unit of Measure: Each

• Use: Top-end repair, restoration, and engine maintenance