Description
The K&N Engineering YA-4518XD replacement air filter is designed to enhance the performance of Yamaha off-road motorcycles, including models like the YZ450F, YZ250F, and WR450F from 2018 to 2021. Built with pleated media, this filter offers a large filtration surface area, promoting long service intervals and high airflow. Its application-specific sealing bead ensures a precise fit directly into the OEM air box, providing a secure seal that prevents dirt and debris from bypassing the filter. This filter is particularly effective in dusty and off-road environments, maintaining clean carburetion even at high altitudes without requiring jet adjustments or additional modifications.
Features:
- Designed to provide increased horsepower and acceleration for off-road, motocross, ATVs, UTVs, and side-by-sides
- Fits directly into OEM air box with application-specific sealing bead for a precise fit
- Pleated media offers a large filtration area for extended service intervals
- No fuel management modifications required for performance gains
- Multiple layers of woven cotton gauze media deliver excellent filtration
- Washable and reusable, most filters come pre-oiled and ready for use
- Backed by a one-year limited warranty
Fitment:
Yamaha WR450F Base 2019
Yamaha WR450F Base 2020
Yamaha YZ250F Base 2019
Yamaha YZ250F Base 2020
Yamaha YZ250F Base 2021
Yamaha YZ250F Base 2022
Yamaha YZ250F Base 2023
Yamaha YZ250F Monster Energy Yamaha Racing Edition Base 2021
Yamaha YZ250F Monster Energy Yamaha Racing Edition Base 2022
Yamaha YZ250F Monster Energy Yamaha Racing Edition Base 2023
Yamaha YZ450F Base 2018
Yamaha YZ450F Base 2019
Yamaha YZ450F Base 2020
Yamaha YZ450F Base 2021
Yamaha YZ450F Base 2022
Yamaha YZ450F Monster Energy Yamaha Racing Edition Base 2021
Yamaha YZ450F Monster Energy Yamaha Racing Edition Base 2022
Yamaha YZ450FX Base 2019
Yamaha YZ450FX Base 2020
Yamaha YZ450FX Base 2021
Yamaha YZ450FX Base 2022
Yamaha YZ450FX Base 2023

















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