Athena Big Bore Gasket Kit for the Yamaha YZ250 / YZ250X Big Bore Kit

The Athena Replacement Gasket Kit is designed specifically for servicing or rebuilding the Athena Big Bore Kit for the Yamaha YZ250 and YZ250X. This complete gasket set includes all required top-end gaskets to properly reseal the engine after inspection, maintenance, or rebuild work. Manufactured to OEM-level standards for fit, compression sealing, and durability, ensuring reliable performance and leak-free operation.

Features:

• Complete top-end gasket set for Athena’s YZ250 / YZ250X big bore kit

• OEM-quality materials for reliable sealing and long service life

• Precision-cut for correct fit and compression sealing

• Ideal for rebuilds, top-end refresh, or service work

• Designed specifically for Athena big bore cylinder dimensions

• Ready-to-install kit — no mixing or matching required

Fitment:

• 2003–2026 – Yamaha YZ250 Two Stroke

• 2016–2026 – Yamaha YZ250X Two Stroke

Find the complete YZ250 / YZ250X
Big Bore Kit:  CLICK HERE 

Part Number: P400485160183