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Athena

Athena 99-24 Yamaha YZ 250 2T 66.34mm Bore 2T Forged Racing Piston

$160.54

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Athena 66.34mm forged racing piston for Yamaha YZ 250 2T. Improves performance and durability.

Key Features

  • Forged racing piston with 66.34mm bore for Yamaha YZ 250 2-stroke models.
  • Constructed from special high-performance aluminum alloys with nickel and silica.
  • Manufactured with advanced CNC machining for dimensional tolerances of less than 0.01 mm.
  • Designed for improved resistance and excellent performance compared to stock.
  • Smooth profile promotes regular fuel flow and perfect flame propagation.
This Athena piston is designed for Yamaha YZ 250 2-stroke models from 1999 to 2024. Not CARB approved and cannot be shipped to California.
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About this part

Product Details

If you're rebuilding the top end of your Yamaha YZ 250 2-stroke, a strong piston is crucial. This forged racing piston from Athena is built to handle the demands of performance riding. It's designed to offer the same reliability as your original equipment piston but with added resistance and improved performance.

Athena uses special aluminum alloys with nickel and silica for this piston, giving it a well-built structure. They're made using advanced CNC machining tools that hold tolerances to less than 0.01 mm, ensuring a precise fit. The smooth surface profile helps with consistent fuel flow and proper flame propagation, which contributes to better overall engine operation.

Specifications

Brand
Athena
Manufacturer Part #
S4F06640019A
UPC
8050444894071

Frequently Asked Questions

Athena 99-24 Yamaha YZ 250 2T 66.34mm Bore 2T Forged Racing Piston

$160.54