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Engines and Components› Pistons and Piston Rings

Athena

Athena 15-17 Yamaha WR 250 F 76.96mm 4T Forged Piston

$189.95 $152.19 Save $37.76

SKU: A0EF S5F07700008A

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Ships by Jun 17
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Non-Returnable Item
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Description

The Athena S5F07700008A is a 4-stroke off-road forged piston designed for increased resistance and performance. It is made from a special high-performance aluminum alloy with a high silicon content, ensuring reliability comparable to OE pistons. The piston features a smooth profile for regular flow and perfect flame propagation, and some skirts are treated with a molybdenum disulfide coating to reduce friction. The included piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) for enhanced durability and reduced friction with the cylinder.

Fitment

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Specifications

BrandAthena
Part NumberA0EF S5F07700008A

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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