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Description
K&N 18-19 Yamaha YZ450F Replacement Air FilterK&N off road replacement air filters are ideal for extended use in dirty and dusty off road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air flow with excellent filtration. Installation Instructions This Part Fits: Year Make Model Submodel 2019 2020 Yamaha WR450F Base 2019 2023 Yamaha YZ250F Base
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.Installation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2020 | Yamaha | WR450F | Base |
| 2019-2023 | Yamaha | YZ250F | Base |
| 2021-2023 | Yamaha | YZ250F Monster Energy Yamaha Racing Edition | Base |
| 2018-2022 | Yamaha | YZ450F | Base |
| 2021-2022 | Yamaha | YZ450F Monster Energy Yamaha Racing Edition | Base |
| 2019-2023 | Yamaha | YZ450FX | Base |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.5 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
they give what they offer
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
great service from seller it was exactly how much oil quantity i ordered and its great quality
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Works if you need help. Not a miracle in a bottle.
Size: 1 Count (Pack of 1)
It has worked every time I've used this product. Won't fix a damage catalytic converter but will help you pass the test if your car almost passed.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Worked like a charm.
Size: 1 Count (Pack of 1)
Used it as directed. Down to an eighth of a tank. Poured it in and added enough gas to get back to one half a tank. Wanted to get it mixed in really well. Immediately jumped on the interstate and ran 75 MPH for 40 miles. Stopped and filled the tank and when I restarted the engine, the light was off. Coincidence? Not a chance. Light had been on continuously for weeks. AutoZone said I needed a catalytic converter. Nope. One thing I found out the hard way. If your gas filler has a flap at the top, make sure it is easy to push aside. Mine had a little release button near the top that the filler hose would depress before the flap would release. Dumped the first bottle right on the ground. Twelve bucks wasted. No one to blame but me, I guess. Still a bargain, even at twice the price.
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Reviewed in the United States on February 17, 2026
★★★★★ 1
Before use on March 15 two days later March 17 engine light still on
Size: 1 Count (Pack of 1), Size: 1 Count (Pack of 1)
I read the specs on this product and it was guaranteed to cleanse as well as turn engine light off in vehicle. I received it March 14.2026 and used it on March 15.2026 I took a picture on Sunday before I entered it into the gas tank engine light was on at that time. Today is March 17.2026 and engine light is still on. The truck was driven for one hour on the 15th 45 minutes on the 16th and 50 minutes on 17 March. Still the engine light is on. Got home parked the vehicle took a picture again to show engine light is still on product guaranteed it was shut it off, but unfortunately product does not work.
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Reviewed in the United States on March 17, 2026
★★★★★ 4
Good stuff
Size: 1 Count (Pack of 1)
I've used and it's worked for emissions for me and that's with having check engine light on..use stuff,drive around a bit,clear code drive to emissions and should b good unless got serious problems. It's good to use 1 or 2 times a yr if high mileage vehicle.
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Reviewed in the United States on January 1, 2025