Namura Standard Bore Piston Kit Size C 76.98mm for Yamaha WR250F 2015-2019 77mm
Namura Standard Bore Piston Kit Size C 76.98mm for Yamaha WR250F 2015-2019 77mm
FREE, Fast Shipping on all orders!
Namura Standard Bore Piston Kit Size C 76.98mm (77mm) for Yamaha WR250F 2015-2019
This Namura Standard Bore Piston Kit Size C with a 76.98mm bore (77mm oversize) is a direct-fit replacement piston assembly designed to restore compression and performance for Yamaha WR250F models from 2015 to 2019.
Overview
The Namura Standard Bore Piston Kit Size C is engineered to precisely match the original cylinder bore dimensions for Yamaha WR250F motorcycles. This piston kit delivers reliable sealing and power recovery for off-road riding. Whether rebuilding a worn top end or refreshing a competition machine, this piston kit ensures consistent performance.
Built For Performance
- Precision-machined from high-silicone aluminum alloy for durability
- Features a moly-coated skirt for reduced friction and scuff resistance
- Includes rings, wrist pin, and circlips for a complete top-end rebuild
- Bore size of 76.98mm (standard Size C) ensures correct clearance
- Engineered to OEM specifications for exact fitment
- Heat-treated for long service life
Fits These Machines
- for Yamaha WR250F 2015
- for Yamaha WR250F 2016
- for Yamaha WR250F 2017
- for Yamaha WR250F 2018
- for Yamaha WR250F 2019
On-The-Job Use
- Commonly used for top-end rebuilds on enduro and trail riding bikes
- Ideal for motocross racing when restoring worn pistons
- Suitable for off-road competition where consistent compression is critical
- Used by mechanics for routine engine overhauls on WR250F models
Specs At A Glance
| Part Number(s) | Size C (76.98mm) |
| Bore | 76.98mm (standard Size C, 77mm oversize) |
| Material | High-silicone aluminum alloy |
| Includes | Piston, rings, wrist pin, circlips |
| Vehicle Fitment | Yamaha WR250F 2015-2019 |
Good To Know
Q: Is this piston kit compatible with my 2016 WR250F? A: Yes, this Standard Bore Piston Kit Size C is designed for Yamaha WR250F models from 2015-2019; always confirm your engine bore condition before installation.
Q: What is the difference between Size C and other sizes? A: Size C indicates a specific piston diameter within the standard bore range; your cylinder should be measured to verify the correct size for your engine.
Slight variation in finish or dimensions may occur between production runs, and confirm compatibility before ordering.
Get it between -
