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Engines and Components Pistons and Piston Rings

Athena

Athena 02-08 Honda CRF 450 R 490cc 100mm Big Bore Cylinder Gasket Kit

$136.95 $106.52 Save $30.43

SKU: A0EF P400210160001

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: P400210160001

Kits include aluminum cylinder with galvanic coating design with forged piston with molybdenum coating.

MIA's Description

The Athena P400210160001 is a top-end gasket kit designed for big bore cylinder kits. This kit features a 100mm bore size, making it suitable for specific engine applications. It is part of Athena's extensive range of replacement engine gaskets.

Fitment

Fitment Guaranteed

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

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Specifications

BrandAthena
Part NumberA0EF P400210160001

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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