KAWASAKI Piston KX 125 01-03

The KAWASAKI Piston KX 125 01-03 is a Vertex top-end piston kit for the Kawasaki KX125 2001-2003 engine, providing an OEM-style replacement for service or rebuilds. This Race series kit restores the 54.0 mm bore with a C fit class piston matched to the cylinder specification.

Technical specifications

• Engine application: Kawasaki KX125 2001-2003
• Kit type: Top-end piston kit
• Bore diameter: 54.0 mm
• Fit class: C
• Design: OEM replacement style
• Series: Race
• Kit contents: Piston, rings, wrist pin, circlips
• Product code: 22714C

Use and service context

This Vertex Pistons kit suits routine top-end refreshes, seizure repairs, or loss-of-compression issues on KX125 2001-2003 engines. It is typically installed together with a fresh small-end bearing and relevant top-end gaskets as part of a complete top-end service.

Installation notes

The piston is a direct-fit replacement for the specified KX125 years; use appropriate ring compressors, circlip tools, and a torque wrench, and verify clearances and orientation against the Kawasaki service manual during assembly.