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The K&N High-Flow Original Lifetime Engine Air Filter is a premium, washable air filter designed to increase horsepower and acceleration while providing superior engine protection. Compatible with a wide range of Ford models from 1995-2017, it features a durable 4-layer cotton gauze construction, requires cleaning only every 75,000 miles, and offers a lifetime limited warranty. This reusable filter reduces waste and saves up to $125 over its lifespan, making it a smart, eco-conscious upgrade for performance-driven drivers.





| ASIN | B0000UUU6E |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #70,395 in Automotive ( See Top 100 in Automotive ) #1,054 in Automotive Replacement Air Filters |
| Brand | K&N |
| Customer Reviews | 4.8 4.8 out of 5 stars (729) |
| Date First Available | October 2, 2000 |
| Exterior | Machined |
| Global Trade Identification Number | 00024844029683 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.43 pounds |
| Item model number | E-0945 |
| Manufacturer | K&N Engineering |
| Manufacturer Part Number | E-0945 |
| Model | Replacement Air Filter |
| OEM Part Number | F50Z9601BA, F5UZ9601BA, F6ZX9601AA, F6ZX9601AB, F6ZZ9601A |
| Product Dimensions | 8.25"L x 8.25"W x 8.75"H |
| UPC | 024844000002 024844029683 |
A**.
Very good filters
I previously always purchased the long life Fram filters but now am sold on this K&N long life. The price compared with the Fram makes it comparable but the K&N is a much better quality manufactured filter. I bought an extra to have on hand. This came well packaged and delivery was quick. My truck loves them. Thanks. AMR.
A**O
Air intake
This air intake is a must have, the performance, the quality, and it ease to install, I recommend this product .
P**L
Awesome
Very nice fits kinda snug
H**.
Totally worth the money
Perfect fit, fast shipping.
S**Y
Noticeable increase in acceleration.
Also, less throttle is needed on the freeway, which should mean better fuel economy. A little harder to install because the K&N gasket is made of a stiffer material than normal filters. I have a 2001 Ford Econoline 150 with the 4.6 V8. When checking out you have the option of an outer box; I didn't choose that and my filter arrived in a bag, slightly crushed... I also got a panel style K&N for my 1.9 BMW Z3, and the difference was even more dramatic, like adding a turbo.
K**F
Will order again , when needed
Good product , works well
M**O
Better than disposable filters
Better than disposable filters and you can clean as often as you care too to have top performance
W**.
awesome filter
great filter. just what my truck needed.
J**N
I've put a k&n engine air filter in every vehicle I've owned and again not disappointed. Was slightly tight clamping it back into place but I only saw that as having a good seal around the rubber part of the filter. I doubt it gives you extra horsepower but I've noticed better throttle response. I'll continue to use these k&n filters in the future for any other vehicles I may purchase.
B**L
Fits my ford excursion perfectly and does what it’s supposed to highly recommend and shipping was fast .
R**É
I always used K&N filters on my vehicles and this was a first for me on my v10 Ford rv. Wow what a noticeable difference right away, much snappier take off and I don’t hear the “air surging” (If you will) when I would release the gas before the Install. Fuel mileage wise, I Haven’t done a comparison yet but plan to. Overall It breaths 100% better than the stock paper filter that only makes you wonder why car companies even use them still to this day.
R**.
Works great in my Ford E450 6.8L V10 motor home. I cannot say for certain that we got any better gas mileage as we were driving in the mountains most of the trip. However, I did notice that with the OEM air filter I could hear a fair amount of octane ping. With the K&N filter installed the octane ping was reduced to the minimum. In over 7,000 miles I only noticed it a couple of times.
S**U
Awesome product I have uesd them for years
Trustpilot
2 weeks ago
5 days ago