WISECO 40309M09700 Piston Kit 97mm 13.5:1 Yamaha YZ450F 2023–2025

WISECO 40309M09700 Piston Kit 97mm 13.5:1 Yamaha YZ450F 2023–2025

The WISECO 40309M09700 piston kit 97mm 13.5:1 compression ratio is engineered to deliver a strong balance of increased power, throttle response, and long-term reliability for Yamaha 450cc four-stroke engines. Built to precise tolerances, this WISECO piston kit supports efficient combustion and consistent power delivery, making it an excellent choice for motocross racing, off-road riding, and performance-focused maintenance.

Designed for durability under demanding conditions, the WISECO 40309M09700 piston kit 97mm 13.5:1 compression ratio provides dependable sealing and stable operation across a wide RPM range. This piston kit is ideal for riders and mechanics performing top-end rebuilds who want improved torque characteristics without sacrificing engine longevity, whether on the track or the trail.

Key Features

• Precision-manufactured piston built to tight tolerances for strength and reliability
• 97.00 mm bore with 13.5:1 compression ratio for enhanced torque and throttle response
• Optimized piston design supports efficient combustion and consistent power output
• Engineered for durability in motocross and off-road riding applications
• Includes piston, piston rings, wrist pin, and circlips for complete installation

Vehicle Fitment

• 2023–2025 Yamaha YZ450F
• 2023, 2025 Yamaha YZ450F Monster Energy Yamaha Racing Edition
• 2024 Yamaha YZ450F Monster Energy Edition
• 2024–2025 Yamaha YZ450FX
• 2024–2025 Yamaha WR450F

Frequently Asked Questions

Is this piston kit compatible with my Yamaha YZ450F or WR450F?
Yes, this piston kit is designed for the listed Yamaha YZ450F, YZ450FX, and WR450F models that use a 97.00 mm bore.

Does this kit include all required installation components?
Yes, the kit includes the piston, piston rings, wrist pin, and circlips for a complete top-end piston replacement.

Is a 13.5:1 compression ratio suitable for aggressive riding?
The 13.5:1 compression ratio offers improved throttle response and torque while maintaining reliability for motocross and off-road use.

Choose a precision-engineered piston designed to deliver reliable power, accurate fitment, and long service life. This WISECO piston kit is a solid option for maintaining and upgrading your Yamaha 450 engine with confidence.

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