Athena Piston Kit with Gaskets, 66.34 mm, Yamaha (P4F0664267019A)

Upgrade your Yamaha 2-stroke off-road engine with the Athena Piston Kit with Gaskets, part number P4F0664267019A. Designed as a reliable replacement for the original equipment piston, this kit combines a high-performance aluminum alloy piston, piston rings, and a complete gasket set to support consistent engine operation, dependable sealing, and strong performance. The piston’s high silicon content contributes to durability, dimensional stability, and resistance under demanding riding conditions.
The smooth piston profile promotes regular airflow and efficient flame propagation within the combustion chamber. Athena manufactures its 2-stroke off-road pistons using computer numerical control (CNC) machines to maintain precise production standards and consistent quality. This attention to detail helps provide a dependable fit and supports the performance characteristics expected from a properly matched replacement piston.
Included piston rings are engineered to maintain a high-quality seal against the cylinder walls while minimizing friction. Reduced friction can help support efficient power delivery and responsive engine performance. The included gasket kit is produced according to strict manufacturer specifications, using carefully selected raw materials and surface treatments designed to compensate for surface irregularities. A material stress-relieving process further improves sealing in critical areas, helping promote reliable compression and reduce the risk of leakage.
This Athena piston kit is an application-focused solution for Yamaha 2-stroke off-road engines requiring a 66.34 mm piston. Verify engine compatibility and installation requirements before purchase. Professional installation and adherence to the engine manufacturer’s service procedures are recommended for optimal results.

Features:

• High-silicon aluminum alloy piston supports durability, reliability, and heat resistance

• Smooth piston profile promotes regular airflow and efficient flame propagation

• CNC-manufactured piston provides consistent production quality and precise fit

• Piston rings help maintain a strong cylinder-wall seal with reduced friction

• Gasket kit uses surface treatments and stress-relieved materials to improve sealing

• Designed for Yamaha 2-stroke off-road applications

• Piston size: 66.34 mm

• Brand: Athena

• Part Number: P4F0664267019A

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