ProX Piston Kit for Kawasaki KX125, 53.97 mm (01.4218.C)

The PROX 01.4218.C Piston Kit is an OEM replacement solution for Kawasaki KX125 applications. Manufactured in Japan, this piston kit is designed to provide reliable fitment, consistent performance, and dependable service in demanding two-stroke engine environments. The 53.97 mm piston is engineered for riders and technicians seeking a quality replacement component built to precise standards.
Cast from a high-silicon-content aluminum alloy, the PROX piston meets or exceeds OEM specifications for strength, durability, and dimensional stability. The piston is CNC-machined to extremely close tolerances, helping support accurate installation and dependable operation when paired with properly serviced engine components. Its construction is intended to withstand the heat, load, and operating demands associated with motocross and off-road riding.
The PROX 01.4218.C kit includes the piston, ring kit, wrist pin, and circlips for a convenient engine rebuild or piston replacement. Supplying the primary piston components in one package helps simplify installation and ensures the included parts are designed to work together. Always verify application details and follow the manufacturer’s service procedures before installation to help achieve proper clearance, ring placement, and engine performance.

Features:

• Brand: PROX

• Part Number: 01.4218.C

• Application: Kawasaki KX125

• Piston Size: 53.97 mm

• Manufacturing Origin: Made in Japan

• Construction: Cast from high-silicon-content aluminum alloy

• Machining: CNC-machined to extremely close tolerances

• Specification: Meets or exceeds OEM specifications

• Kit Contents: Piston, ring kit, wrist pin, and circlips

• Type: OEM replacement piston kit

Ships from Parts Unlimited.