54mm Cylinder Piston Top End Rebuild Set for Yamaha YZ125 YZ 125 2005-2021

Product Overview

This aftermarket replacement top end rebuild set is intended for the listed Yamaha YZ125 applications and includes a 54mm cylinder piston top end kit. A top end rebuild set of this type supplies the piston and related top end components used when servicing the upper portion of a two stroke engine. The 54mm piston size should be confirmed against the existing bore and part number before purchase.

Key Features & Performance

• Provides a 54mm piston and top end components for rebuilding the upper end of a two stroke engine
• Intended for the Yamaha YZ125 model covered by the title
• 54mm piston sizing distinguishes this set from other bore sizes
• Used when replacing a worn or damaged piston and related top end parts

Fitment & Compatibility

• for Yamaha YZ125 applications from 2005 to 2021

Common Uses

• Replacing a worn, scored, or damaged piston during top end service
• Routine top end maintenance of the listed Yamaha YZ125 engine
• Restoring normal upper engine function after the existing top end components have failed

Technical Specifications

• Product Type: Cylinder Piston Top End Rebuild Set
• Piston Size: 54mm
• Model Application(s): Yamaha YZ125, YZ 125
• General Application: 2005-2021

Frequently Asked Questions

Q: What does a top end rebuild set do? A: It supplies the piston and related top end components used to service the upper portion of a two stroke engine.

Q: How should fitment be verified? A: Confirm the 54mm piston size and verify against the complete existing part number and full Yamaha YZ125 model and year designation before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.