Wiseco Piston Kit, 68.50 mm for Yamaha YZ250 and YZ250X (804M06850)

The WISECO 804M06850 Piston Kit is designed for all-purpose two-stroke riding in Yamaha YZ250 and YZ250X applications. Built to support dependable engine performance, this piston kit combines durability, longevity, and increased horsepower potential for riders seeking a reliable replacement or performance-oriented upgrade. Its dedicated forging design helps optimize the balance between strength and weight for demanding off-road use.
The piston features additional lightening operations designed to improve throttle response and promote crisp engine performance. Each component is engineered, forged, and machined in the USA, reflecting WISECO’s focus on precision manufacturing and consistent quality. The piston is made in the USA and built to withstand the operating demands associated with high-performance two-stroke engines.
This WISECO piston kit uses a 68.50 mm piston size and is tailored for compatibility with Yamaha YZ250 and YZ250X motorcycles. It is a practical choice for engine rebuilds, maintenance, and performance applications where responsive power delivery and durable construction are important. Verify engine specifications and application compatibility before installation to ensure the correct fit and proper setup.

Features:

• Application: Designed for all-purpose two-stroke riding

• Performance: Supports increased horsepower and enhanced throttle response

• Construction: Dedicated forging design optimized for strength-to-weight performance

• Weight Reduction: Additional lightening operations promote responsive engine performance

• Manufacturing: Engineered, forged, and machined in the USA

• Piston Material: Piston is made in the USA

• Compatibility: Fits Yamaha YZ250 and YZ250X applications

• Piston Size: 68.50 mm

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