











💨 Power up your drive with lifetime performance and eco-friendly swagger!
The K&N Performance Diesel High-Flow Lifetime Engine Air Filter is a premium, washable air filter designed to increase airflow by up to 50%, enhancing horsepower and acceleration for 2020-2026 Ford Super Duty trucks. Engineered with four layers of cotton gauze and durable materials, it offers lifetime use with cleaning intervals every 75,000 miles. Easy to install and backed by a limited lifetime warranty, this eco-friendly filter reduces waste by replacing disposable filters and is proudly made in the USA.





| ASIN | B09H8GR3W8 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #18,962 in Automotive ( See Top 100 in Automotive ) #268 in Automotive Replacement Air Filters |
| Brand | K&N |
| Customer Reviews | 4.8 4.8 out of 5 stars (328) |
| Date First Available | September 15, 2021 |
| Exterior | Machined |
| Global Trade Identification Number | 00024844383938 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3 pounds |
| Item model number | 33-5100 |
| Manufacturer | K&N Engineering, Inc. |
| Manufacturer Part Number | 33-5100 |
| Model | High-Flow Engine Air Filter |
| OEM Part Number | Ford FA1950, Ford FA1951 |
| Product Dimensions | 14.25"L x 14.22"W x 3.31"H |
| Shape | Rectangular |
| UPC | 024844383938 |
M**K
This fits well and my F350 2022 Ford diesel
K&N has always had good products in my book. I plan on buying another one in the future so when I pull this one out, I can put another right back in . I feel like it helps my fuel mileage.
J**N
Nice stock replacement
Fits perfectly
J**F
Reusable air cleaner
Great air, cleaners
S**N
nice filter
great price and exact fit and easy installation. would recommend
J**R
Trusted product
Fast transaction
P**N
Quality product
Fit perfectly and will save money
F**K
K&N filter good investment
This is my 4th K&N engine air filter which is to say the 4th vehicle that I've purchased the product for. They are extremely more efficient than a standard disposable paper filter. Increased horsepower, better fuel mileage and WAY less expensive in the long run. I plan on keeping my pick up for many years, this is the last airfilter I'll ever have buy for it. My truck is a 2024 F350 Superduty, an OEM filter for it is $25 and needs to be replaced about once every 12 to 18 months. The K&N cost me $63 and it will outlast pretty much any other component on my truck, (at least a million miles or more). Just know that a periodic cleaning and re oiling is required about as often as you would normally change and dispose of a paper filter. The math is pretty straight forward and easy, K&N is a great investment and has a finominal R.O.I.
U**D
Perfect fit for 2024 F450
Perfect filter fit. And nice amped up sound as well
K**N
I have put a K&N in every vehicle I've owned for over 25 years. Trucks and motorcycles (street and dirt). I do believe the science K&N promotes... mileage, performance/increased power, etc., as they are used by amateur and professional motoesports all over the world, where every little edge can make a difference towards a win. I believe that their quality speaks for itself, as they have been producing filters for almost every type of internal combustion engine imaginable for decades. Finally, I am very much a fan of the filter's cleaning intervals. For my truck, two paper filters equal the cost of one K&N. In a dusty part of the World, like the prairies? Two filters a year, isn't unheard of. In a year's time, a K&N is paying for itself, and I haven't even had to clean it once. Hey, K&N!? Put me in an ad!! 😄😄
K**Z
I would recommend this air filter, Better than the factory air filter by far way better throttle response
M**E
Two of the sides always wanted to bend towards the inside. Too fix it just pull outward before installing the filter
H**U
Qualité supérieure
J**R
Used in a commercial vehicle, easy to install, is serviceable adding more long term savings
Trustpilot
2 weeks ago
1 month ago