03.2304 Pro-X Connecting Rod Kit for Yamaha YZ250 1983-1989 YZ 250

Pro-X Connecting Rod Kit for Yamaha YZ250

This Pro-X connecting rod kit is a complete bottom-end rebuild component for the Yamaha YZ250, supplied with the Pro-X reference 03.2304 for direct replacement of the original rod assembly.

Overview

The Pro-X Connecting Rod Kit for Yamaha YZ250 restores the crank assembly with a fresh rod, bearing, and related hardware so the engine can return to reliable operation. This connecting rod kit suits riders rebuilding a worn or seized bottom end on 1983 through 1989 YZ250 machines. It is built as an aftermarket replacement for the stock component, giving mechanics a dependable option for a complete crank rebuild.

Built For Performance

• Complete kit includes connecting rod, big end bearing, small end bearing, and thrust washers where supplied
• Manufactured to OEM-equivalent dimensions for correct fitment in the YZ250 crank assembly
• Heat-treated steel construction for strength under high-rpm loads
• Precision-ground bearing surfaces for smooth rotation and reduced friction
• Balanced to work with the standard YZ250 crankshaft stroke

Fits These Machines

• for Yamaha YZ250 1983
• for Yamaha YZ250 1984
• for Yamaha YZ250 1985
• for Yamaha YZ250 1986
• for Yamaha YZ250 1987
• for Yamaha YZ250 1988
• for Yamaha YZ250 1989

On-The-Job Use

• Bottom-end rebuilds after a crank failure or rod seizure
• Top-end refresh projects that include crank inspection and rod replacement
• Motocross and off-road engine servicing on older YZ250 models
• Preventive maintenance during a full engine teardown

Specs At A Glance

Good To Know

Q: Does this kit include the crank bearings? A: It includes the connecting rod, big end bearing, small end bearing, and related washers, while main crank bearings are typically sold separately, so check your rebuild list before ordering.

Q: Can I install this without pressing the crank apart? A: No, the crank must be split and reassembled with the correct press and truing tools, so a workshop with crank service experience is recommended.

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