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Yamaha

Yamaha Piston (STD) YZ65 2018-2027 OEM BR8-11631-01-B0

Yamaha Piston (STD) YZ65 2018-2027 OEM BR8-11631-01-B0

Regular price $61.22 USD
Regular price Sale price $61.22 USD
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Genuine Yamaha OEM Standard Piston (STD)
Part Number: BR8-11631-01-B0 | New In Box (NIB)
Product Overview:
Keep your machine running at peak performance with this 100% Brand New, Genuine Yamaha Factory OEM Standard Size Piston. Perfect for a fresh top-end rebuild, this high-quality Japanese-engineered piston guarantees exact fitment, reliability, and power output that aftermarket parts simply cannot match. Avoid compression loss and piston slap by choosing original factory racing parts.
Product Specifications:
  • Brand: Yamaha OEM (Original Equipment Manufacturer)
  • Part Number: BR8-11631-01-B0 (Replaces/Interchanges with standard BR8-11631 series)
  • Size: Standard Bore (STD) / Size Classification "B0" (Orange classification)
  • Condition: Brand New, never installed. In original factory packaging.
  • Country of Manufacture: Japan
Vehicle Fitment / Compatibility:
This part is designed specifically for Yamaha's youth two-stroke motocross lineup. Please verify your specific model year:
  • Make: Yamaha
  • Model: YZ65
  • Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
    (Note: Always double-check your owner's manual or local dealer to confirm your cylinder code matching for standard size pistons.)
Why Choose Genuine Yamaha OEM?
  • Flawless Tolerances: Manufactured to exact factory specs to maximize engine compression and reliability.
  • Superior Heat Dissipation: Built using specialized premium alloys designed to handle the extreme RPMs of a 65cc race bike.
  • Race-Ready Reliability: Avoid the premature wear and structural risks often associated with cheap aftermarket pistons.

Thank you for shopping with us!


You will only receive items shown in the pictures. Any hardware or extra items that are not shown in the photos are not included with the listing. 


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  1. Report the Damage: Notify the shipping company directly (UPS, FedEx, USPS, etc.).

  2. Document the Condition: Take clear photos of the damaged packaging and keep all original materials.

  3. Follow Carrier Instructions: Complete the claim process as required by the shipping provider.

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Quantity

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