03.4218 Pro-X Connecting Rod Kit for Kawasaki KX125 KX 125 1998-2002

Connecting Rod Kit for Kawasaki KX125

This Pro-X connecting rod kit is a complete bottom-end rebuild component designed to restore crank assembly function on the Kawasaki KX125, cross-referencing Pro-X part number 03.4218.

Overview

This connecting rod kit for Kawasaki KX125 delivers the rod, bearing, and related hardware needed to rebuild a worn or failed bottom end. Built as a direct replacement for the original rod assembly, this Pro-X connecting rod kit for Kawasaki KX125 keeps the crank spinning true through the full rev range on the track.

Built For Performance

• Forged steel rod construction for high-rpm strength
• Precision-machined big-end and small-end bores
• Includes caged roller bearing for the big end
• Hardened and polished thrust surfaces
• Balanced to OEM rod weight specifications
• Corrosion-resistant finish on rod and hardware

Fits These Machines

• for Kawasaki KX125 1998
• for Kawasaki KX125 1999
• for Kawasaki KX125 2000
• for Kawasaki KX125 2001
• for Kawasaki KX125 2002

On-The-Job Use

• Bottom-end rebuilds on KX125 motocross bikes
• Top-end teardowns that reveal rod wear or play
• Crank truing and reassembly shops
• Pre-season engine refreshes for racing
• Restoring a seized or knocking bottom end

Specs At A Glance

Good To Know

Q: Does this kit include the crank pin and bearing? A: Yes, Pro-X connecting rod kits ship with the rod, big-end bearing, and crank pin as a matched set for the KX125 bottom end.

Q: Can I install this without splitting the cases? A: No, replacing a connecting rod requires pressing the crank apart and truing it afterward, so the engine cases must be split.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.