03.2009 Pro-X Connecting Rod Kit for Yamaha TRZ 125 1987-1992 TRZ125

Connecting Rod Kit for Yamaha

This Pro-X connecting rod kit with part number 03.2009 provides the crank assembly components needed to rebuild the bottom end of a Yamaha TRZ 125 engine.

Overview

This connecting rod kit for Yamaha delivers the rod, bearing, and related hardware required to restore a worn or damaged crankshaft assembly. The kit suits riders and shops rebuilding a Yamaha TRZ 125 that needs a fresh connecting rod kit for reliable bottom end service.

Built For Performance

• Connecting rod machined for a precise fit in the TRZ 125 crank assembly
• Kit includes rod, bearing, and pin to complete the rebuild
• Balanced for smooth rotation at operating RPM
• High-strength steel construction for durability
• Direct replacement for the stock connecting rod assembly
• Manufactured to Pro-X specifications

Fits These Machines

• for Yamaha TRZ 125 1987
• for Yamaha TRZ 125 1988
• for Yamaha TRZ 125 1989
• for Yamaha TRZ 125 1990
• for Yamaha TRZ 125 1991
• for Yamaha TRZ 125 1992

On-The-Job Use

• Bottom end rebuilds on the Yamaha TRZ 125
• Crankshaft service after a top end failure
• Routine engine refreshes on high-hour machines
• Shop rebuilds pairing the rod with a new crank pin and bearing
• Restoring a vintage Yamaha TRZ 125 for track or trail use

Specs At A Glance

Good To Know

Q: Does this kit include the crank pin and bearing? A: Yes, the kit supplies the rod, bearing, and pin so the connecting rod assembly can be rebuilt as a set. Reusing worn hardware alongside a new rod is not recommended.

Q: Can I install this without splitting the cases? A: No, a connecting rod replacement requires access to the crankshaft, which means removing the engine and splitting the cases. Professional installation is advised.

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