Yamaha BR9-116A0-00-00 - 4-Stroke Piston Kit is a maintenance accessory that includes piston, ring, circlips, and wrist pin components for select Yamaha motorcycles.

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Key Features & Benefits

• Genuine Yamaha kit — piston, ring, circlips, and wrist pin included
• High-quality forged aluminum piston construction
• Proven OEM fitment, durability, and reliability
• Restores factory compression and throttle response
• Straightforward drop-in replacement during a top-end rebuild
• Matched components eliminate bore/clearance guesswork

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Fits These Yamaha Models

Yamaha Model	Compatible Years
WR450F	2019-2020
YZ450F	2018-2019
YZ450FX	2019-2020

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Frequently Asked Questions

What is Yamaha part BR9-116A0-00-00?

BR9-116A0-00-00 is the Yamaha 4-Stroke Piston Kit, an accessory kit including piston, ring, circlips, and wrist pin components for service maintenance.

What type of Yamaha part is BR9-116A0-00-00?

BR9-116A0-00-00 is an accessory service part designed for piston replacement in select Yamaha motorcycles.

Which Yamaha models fit BR9-116A0-00-00?

This 4-Stroke Piston Kit fits various WR and YZ models from 2010 through 2026. Check the fitment table above and confirm model year compatibility before ordering.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.