Namura Standard Bore Top End Rebuild Kit Size C for Yamaha YZ450F 2023-2025 97mm

Standard Bore Top End Rebuild Kit Size C for Yamaha YZ450F 2023-2025 97mm

This top end rebuild kit from Namura is a complete set of components designed to restore cylinder compression and engine performance in 2023-2025 Yamaha YZ450F motorcycles equipped with standard bore 97mm cylinders.

Overview

The Namura Standard Bore Top End Rebuild Kit Size C includes a piston, rings, wrist pin, circlips, and gaskets specifically engineered for the Yamaha YZ450F 2023-2025. This kit is ideal for riders performing routine top end maintenance or rebuilding after wear, ensuring reliable power delivery and longevity.

Built For Performance

• High-quality cast piston matched to 97mm standard bore
• Precision-machined rings for optimal seal and compression
• Includes wrist pin and circlips for secure installation
• Complete gasket set for leak-free assembly
• Designed to meet OEM specifications for fit and performance

Fits These Machines

• for Yamaha YZ450F 2023
• for Yamaha YZ450F 2024
• for Yamaha YZ450F 2025

On-The-Job Use

• Motocross racing
• Trail riding and off-road competition
• Engine rebuild after high-hour use
• Performance restoration in modified builds

Specs At A Glance

Good To Know

Q: Is the piston included in this kit? A: Yes, the kit includes a matched piston, rings, wrist pin, circlips, and a full gasket set for a complete top end rebuild.

Q: Does this kit work with 2022 or earlier YZ450F models? A: No, this size C kit is specifically designed for 2023-2025 Yamaha YZ450F with 97mm bore; earlier years use different dimensions.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.