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K&N 33-2385 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   95 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N 33-2385 Air Filter fits some Ford Expedition, Ford F150, Ford F150 Platinum, Ford F150 SVT Raptor, Ford F250 Super Duty, Ford F350, Ford F350 Super Duty, Ford F450, Ford F450 Super Duty, Ford F550 Super Duty, Ford F650, and Lincoln Navigator models. See vehicle applications link for details.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount2.21 oz (65 ml)
Height1 in (25 mm)
Outside Length10.5 in (267 mm)
Outside Width9.875 in (251 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height11.56 in (294 mm)
Product Box Length10.44 in (265 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1.4 lb (0.6 kg)

K&N 33-2385 Air Filter Product Reviews

Tuesday, March 21, 2017 - Part 33-2385
Very happy with my purchase of your quality air filter products. I've purchased them in the past and will continue to do so. Thank you.

Deane Johansen
Fairhaven, Massachusetts
Monday, March 20, 2017 - Part 33-2385
Excellent product, easy installation, high quality and increased mileage.

Bob Thibodeaux
Kinder, Louisiana
Friday, March 3, 2017 - Part 33-2385
This is the 4th K&N air filter I have purchased. I really like them, they are excellent air filters. I have noticed that they increase my fuel mileage, improve the performance, and easy to clean. No need to purchase another filter, this one will last a life time. Excellent product.

Dale Shafer
Holstein, Nebraska
Sunday, February 26, 2017 - Part 33-2385
It was a dark and stormy night... which made changing the filter on my 2012 F-150 a little interesting. I purchased the filter and changed it in the parking lot during a Cleveland snowstorm. The air-box came apart easily, and dropping the filter in place was a snap. Replacing the air-box cover took a little more work than I bargained for during a 6-inch-per-hour snowstorm. The cover has 4 tabs that fit snugly into the box, but things wouldn't line up right because the K&N filter's rubber edge is thicker than the OEM paper filter's. If you encounter this issue, it's easier to un-clamp the cover from the hose, put it all together, and re-clamp it. Also, don't do it at night, in a snow storm, having your only source of illumination be the LED from your cell phone, using a multi-tool's screwdriver, and not wearing gloves. I reset the gizmo on my dash and left the lot. I had been getting around 16.9 to 17.2 MPG, running mostly interstate, using 87 Octane gas. I have run E85, but only get 14 MPG with it. (Full synthetic oil, for those who are wondering.) I climb two big hills both ways to work every day at highway speeds. I'm averaging 19.9 MPG over the past 800 miles. I've also noticed a difference in acceleration and power, but I have no way of quantifying it other than saying that I notice it's running a little stronger. Once this tank is empty, I'm going to try E85 to see if there is also a 15 increase in fuel economy. I will put an additional review up and post my findings. I hope there is, because that would mean this one-time-purchase filter would make running the less expensive E85 more viable.

CS Merchant
Akron, Ohio
Monday, February 6, 2017 - Part 33-2385
Easy install. I can tell my mpg have got a little better.

Jason Ferrell
Cincinnati, Ohio
Wednesday, February 1, 2017 - Part 33-2385

Dennis Bash Sr.
Kodiak, Alaska
Monday, January 30, 2017 - Part 33-2385
I'm satisfied with the replacement air filter I purchased from K&N. I received it in a timely fashion and was very easy to install. I'm waiting for K&N to produce a cold air intake system for my 2017 F150 3.5L Ecoboost. I had a K&N cold air intake system for my 2015 F150 3.5L Ecoboost engine as was very satisfied with the performance and uptick in fuel mileage I experienced using this system.

Mike Linahan
Philadelphia, Pennsylvania