Yamaha 1UY-11631-01-Y0 - Piston (Std) is a genuine Yamaha part. It is an original equipment replacement part for select Yamaha ATVs and motorcycles.

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Key Features & Benefits

• Genuine Yamaha OEM part, number 1UY-11631-01-Y0.
• Fits 4 Yamaha models from 1987 to 2005.
• Direct replacement for the original part on the listed Yamaha models.

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Fits These Yamaha Models

• BW350 - 1987-1988
• YFM350F Wolverine 4x4 - 1995-2005
• YFM350FW Big Bear 4x4 - 1999
• YFM350X Warrior - 1987-2004

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Frequently Asked Questions

What is Yamaha part 1UY-11631-01-Y0?

1UY-11631-01-Y0 is a genuine Yamaha piston (std) for select Yamaha ATVs and motorcycles.

Is 1UY-11631-01-Y0 a genuine Yamaha part?

Yes, 1UY-11631-01-Y0 is a genuine Yamaha OEM part.

Which Yamaha models fit 1UY-11631-01-Y0?

This part fits the BW350 (1987-1988), YFM350F Wolverine 4x4 (1995-2005), YFM350FW Big Bear 4x4 (1999), and YFM350X Warrior (1987-2004). Confirm the exact model and year 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.