Namura Standard Bore Piston Kit Size B 96.96mm for Yamaha YZ450FX 2021-2023 97mm
Namura Standard Bore Piston Kit Size B 96.96mm for Yamaha YZ450FX 2021-2023 97mm
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Standard Bore Piston Kit Size B 96.96mm for Yamaha YZ450FX 2021-2023
This standard bore piston kit is a direct replacement for the Yamaha YZ450FX, delivering OEM-grade compression and power restoration for 2021-2023 models.
Overview
The Namura standard bore piston kit provides a reliable top-end rebuild solution for the Yamaha YZ450FX. This size B 96.96mm piston ensures a precise fit without cylinder boring. It is designed for riders maintaining their high-performance dirt bikes between overhauls.
Built For Performance
- Precision-machined from high-strength aluminum alloy
- Includes rings, wrist pin, and circlips for a complete kit
- Sized to fit stock cylinder bore within service limits
- Heat-treated for improved strength and longevity
Fits These Machines
- for Yamaha YZ450FX 2021-2023
On-The-Job Use
- Motocross racing
- Off-road trail riding
- Enduro competition
- Engine rebuilding and top-end refresh
Specs At A Glance
| Product | Standard Bore Piston Kit Size B |
| Bore Size | 96.96mm |
| Final Bore | 97mm |
| Fitment | Yamaha YZ450FX 2021-2023 |
| Brand | Namura |
Good To Know
Q: Is this piston kit compatible with the stock cylinder? A: Yes, as a standard bore kit it fits the stock cylinder provided the cylinder is within wear limits and not damaged.
Q: What is included in this kit? A: The kit includes the piston, piston rings, wrist pin, and circlips for a complete top end rebuild.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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