Yamaha B2W-WB033-10-00 - Piston Rebuilt Kits is an accessory featuring a forged aluminum piston and includes parts needed to rebuild the top end of select Yamaha motorcycles.

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Key Features & Benefits

• Genuine Yamaha forged aluminum piston for strength and heat resistance
• Complete top-end rebuild kit — piston, ring, wrist pin, circlips, gaskets, seals, and O-rings in one package
• Proven OEM fitment tested to Yamaha's durability and reliability standards
• One-stop rebuild — no separate sourcing of gaskets, seals, or small hardware
• Restores compression and power output to like-new levels
• Convenience and cost savings versus buying individual top-end components separately

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Fits These Yamaha Models

Yamaha Model	Compatible Years
WR450F	2022-2023
YZ450F	2022
YZ450FX	2021-2023

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Frequently Asked Questions

What is Yamaha part B2W-WB033-10-00?

B2W-WB033-10-00 is the Yamaha Piston Rebuilt Kits, an accessory kit containing parts to rebuild the top end of select Yamaha motorcycles.

Is B2W-WB033-10-00 a Yamaha accessory?

Yes, B2W-WB033-10-00 is classified as a Yamaha accessory designed for service and maintenance.

Which Yamaha models fit B2W-WB033-10-00?

This kit fits the WR450F models from 2022 to 2023, YZ450F from 2022, and YZ450FX from 2021 to 2023. Confirm the exact model and 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.