♻️ Drive smarter, cleaner, and faster with K&N’s lifetime power boost!
The K&N High-Flow Original Lifetime Engine Air Filter (E-0634) is a premium, washable replacement filter designed for the 2021 Ford Bronco. Featuring four layers of cotton gauze media, it enhances horsepower and acceleration while providing superior contaminant protection. Engineered for durability with a lifetime warranty, it requires cleaning only every 75,000 miles, saving money and reducing landfill waste. Proudly made in the USA, it’s a quick, eco-conscious upgrade for lasting engine performance.
| Manufacturer | K&N Engineering, Inc. |
| Brand | K&N |
| Model | Replacement Air Filter |
| Item Weight | 1.31 pounds |
| Product Dimensions | 8.13 x 8.13 x 8.75 inches |
| Country of Origin | USA |
| Item model number | E-0634 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | E-0634 |
| OEM Part Number | Ford FA2022 |
G**.
Perfect fit. Easy install
Excellent. Perfect fit. I wish it came with a label for noting date of install and milage.
M**T
Bronco Easy & Quality Air Filter Improvement
Installed the product a few weeks ago and saw an improvement in gas mileage right away. It has changed over the weeks, but seeing about 1.5- 2 mpg improvement. Installation was extremely easy and just a few tools to complete. Fit easily and quality product.Definitely would recommend for the price.
J**.
Perfect fit
Read some of the other reviews about fitment issues. It fit exactly as the original in my 2022 2.3 L Bronco. Added some pep and suspect gas mileage soon to follow. As always, K&N makes a great product and it's always been my first "mod" to every vehicle I've owned. Thanks K&N!
C**J
This was well worth the money
My new 2024 Bronco was getting about 14.7 mpg when I bought it. I know what I am about to say may seem crazy but it is true. I watched a few YouTube videos that said the K&N filter actually improved gas mileage on their Broncos. I didn’t care about gas mileage but I do enjoy the peppier HP gain you get from this filter. So for performance reasons I bought it. My Bronco definitely feels healthier and more peppy while on the thottle. But let me tell you this. My gas mileage actually went up to 16.9 mpg. That was actually pretty surprising. That gas mileage is with me driving my Bronco with the four on the pedal all the time. So someone that drives more conservatively may get 18 to 19 mpg out of theirs. Mine is a 2024 Wildtrak Bronco. Mine is geared very low so a regular Bronco should get even better MPG.
J**H
Great fit and great quality !
Fits perfect and works as it should. Appears to be better quality than factory air filter.
M**E
great product - excellent service
ordered and came in two days! I can feel a big difference in my car power and pep with the new air filter
G**E
Disappointing
It doesn’t fit snug around the intake and my gas mileage DROPPED 1.5mpg after installing it. I usually like K&N filters but this one is trash.
M**E
Perfect fit - easy install
Got this for my 2021 Ford Bronco 2.3L. Fit like a glove and install was 5 mins. Does not feel like there’s a difference but I’m sure it’s doing a bit better hp and mpg wise. Not sure why other posts saying it’s a loose fit. The stock filter sits the same way there is no clamps holding this on. It just slips on.
Trustpilot
2 weeks ago
1 day ago
