03.4214 Pro-X Connecting Rod Kit for Kawasaki KX125 KX 125 1994-1997

Connecting Rod Kit for Kawasaki KX125

This Pro-X connecting rod kit is a complete crank rebuild component for Kawasaki KX125 two-stroke engines, cross-referenced under part number 03.4214, and it restores the rod, bearing, and pin assembly that transfers piston force to the crankshaft.

Overview

This connecting rod kit for Kawasaki supplies the rod, big-end bearing, and crankpin needed to rebuild a worn bottom end on the KX125. The connecting rod kit for Kawasaki KX125 models from 1994 through 1997 is aimed at riders and mechanics doing a full crank service rather than a top-end refresh. Every connecting rod kit is built to original equipment dimensions so the crank spins true once pressed and trued.

Built For Performance

• Forged steel rod body for high tensile strength under two-stroke combustion loads
• Precision-ground big-end bearing with caged rollers for smooth rotation at high rpm
• Hardened crankpin matched to the rod for consistent press-fit during crank assembly
• Silver-coated or polished bearing surfaces to reduce friction and heat buildup
• Balanced rod geometry to keep vibration low at race speeds
• Cross-references Pro-X part number 03.4214 for easy verification

Fits These Machines

• for Kawasaki KX125 1994
• for Kawasaki KX125 1995
• for Kawasaki KX125 1996
• for Kawasaki KX125 1997

On-The-Job Use

• Bottom-end rebuilds on 1994 to 1997 KX125 motocross bikes
• Race engine freshening between motos or seasons
• Restoring a seized or noisy crank in a rebuild project
• Shop service work where a pressed crank needs new rod hardware

Specs At A Glance

Good To Know

Q: Do I need special tools to install this rod kit? A: Yes, a crank press and truing stand are normally required because the crankpin must be pressed into the flywheels and the assembly trued to tight runout specs. A qualified engine shop can handle this if you do not have the equipment.

Q: Should I replace the main bearings at the same time? A: It is good practice to fit fresh main bearings and seals whenever the crank is split for a rod replacement. Reusing worn bearings can shorten the life of the new rod assembly.

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