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Engines and Components› Cylinder Heads and Components

Athena

Athena 97-04 Yamaha YZ 125 LC Factory 125cc 54mm Replacement Power Valves

$121.95 $109.86 Save $12.09

SKU: A0EF S410485303009

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In Stock
Ships by Jun 18
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Athena S410485303009 is a replacement power valve kit designed for Yamaha YZ125 models. This kit features a 54 mm bore size and is suitable for 125cc, 2-stroke engines. It is engineered by Athena to restore the functionality of your motorcycle's exhaust power valve system.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAthena
Part NumberA0EF S410485303009

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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