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SKU: YA-4518XD | UPC: 024844373083
K&N YA-4518XD Replacement Air Filter for 2018-2022 Yamaha YZ450F, YZ250F, YZ450FX & More
The K&N YA-4518XD is a washable replacement air filter for Yamaha off-road bikes like the 2018-2022 YZ450F. It boosts airflow for added horsepower and acceleration while trapping dirt in extreme conditions. Pre-oiled and designed to drop into the OEM airbox, it supports clean carburetion at high altitudes without jet changes.
Key Features
- Washable and Reusable: High airflow with excellent filtration lasts through dirty off-road riding, easy to clean and reinstall multiple times
- Dual-Stage Design: Run without foam for track performance gains or add foam pre-filter for trail endurance in dust
- Power Gains: Engineered to increase horsepower and acceleration with pre-oiled cotton media
- OEM Direct Fit: Seals precisely in stock airbox on Yamaha YZ450F, YZ250F and compatible models, ready to ride out of the box
- One-Year Warranty: Special off-road media and unoiled foam insert provide maximum protection
Product Notes
- Unoiled foam pre-filter cleans easily with soap and water, reuse after drying
- Filter element washes with K&N cleaner, re-oil for peak performance
- Packaged securely for fast delivery, handles rough trails immediately
Installation Notes
- Professional installation recommended.
- Remove stock filter, insert YA-4518XD directly into OEM airbox
- No modifications or extra hardware needed, seals with stock components
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2020 | Yamaha | WR450F | Base |
| 2019-2022 | Yamaha | YZ250F | Base |
| 2021-2022 | Yamaha | YZ250F | Monster Energy Yamaha Racing Edition |
| 2018-2022 | Yamaha | YZ450F | Base |
| 2021-2022 | Yamaha | YZ450F | Monster Energy Yamaha Racing Edition |
| 2019-2022 | Yamaha | YZ450FX | Base |
Why Choose K&N?
- Proven in motocross and off-road racing since 1969
- Cotton gauze media flows more air than paper filters
- Exact engineering matches Yamaha airbox for leak-free seal
Frequently Asked Questions
-
Q: Will this fit my 2020 Yamaha YZ450F?
A: Yes, YA-4518XD fits 2018-2022 YZ450F Base models and 2021-2022 Monster Energy editions directly in the OEM airbox -
Q: Do I need the foam pre-filter?
A: Remove for maximum track airflow or install dry foam for dusty trail protection and longer service intervals -
Q: How is warranty handled?
A: Backed by one-year limited warranty, contact K&N with proof of purchase for service
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective box 9.25 x 7.5 x 2 inches
- Weight: 0.6 lbs
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