Athena Piston Kit 80.95 mm for Yamaha WR250F and YZ250F (S4F08100005A)

The Athena Piston Kit, part number S4F08100005A, is designed for Yamaha WR250F and YZ250F motorcycles requiring dependable replacement engine components. Built to withstand high mechanical and thermal stresses, this piston kit supports consistent performance during demanding off-road riding, competition use, and high-load engine operation.

Each Athena piston kit is tested on engine dynamometer benches under progressive stress loads and subsequently validated on the track. This testing process helps confirm reliable operation and durability in extreme conditions, giving riders and technicians a practical replacement solution for performance-focused Yamaha engines.

Designed for a precise fit and dependable service life, the Athena Piston Kit helps restore engine performance while supporting the durability expected from a high-quality aftermarket component. Verify vehicle application and piston clearance requirements before installation to ensure proper compatibility with your Yamaha WR250F or YZ250F.

Features:

• Brand: Athena
• Part Number: S4F08100005A
• Piston Size: 80.95 mm
• Application: Yamaha WR250F and YZ250F
• Durability: Engineered for high resistance to mechanical and thermal stresses
• Testing: Validated on engine dynamometer benches and under track conditions
• Use: Suitable for demanding off-road and performance applications

Ships from Parts Unlimited.