Keep your motor’s lungs fed with clean, energy-rich oxygen from the “the world’s best air filter”—K&N Air Filters. Constructed from pleated sheets of oiled cotton gauze, these air filters strip away grime without blocking airflow. Fully reusable. Million Mile Limited Warranty.
Say goodbye to the days of re-oiling your reusable performance filter—innovative aFe Pro-Dry S Air Filters boast a 100% oil-free cotton gauze construction for wicked airflow. Easy to clean and reuse. The Pro-Dry S Air Filter is backed by a Lifetime Warranty.
Steer clear of oil-soaked upgrades and make the switch to AEM DryFlow Air Filters. Boasting an oil-free polyester synthetic material, these performance air filters ensure ample airflow, enhanced protection and easy maintenance. Custom sized. Lifetime Limited Warranty.
Put to rest the ghosts of paper air filters past by exorcizing your air system with a Spectre Air Filter. Masterfully constructed from pleated cotton gauze, these performance air filters trap dirt while still allowing energy-rich air to blast through. Reusable. Lifetime Warranty.
Get maximum filtration with the Airaid SynthaMax Air Filter. Featuring 5 layers of non-oiled, 100% synthetic fiber, this reusable air filter directly replaces your factory paper filter with no modifications. Washable in household detergent and reusable for life. Lifetime Warranty.
When you equip your engine bay with an aFe Air Filter, you’ll never need another performance air filter in your ride’s life. aFe expertly crafts your automotive air filter from high-quality cotton gauze to trap grime without blocking airflow. Cleanable and reusable. Lifetime Warranty.
Drop in optimal engine filtration and performance with the Airaid SynthaFlow Air Filter. Replacing flimsy factory paper filters, this high-performance filter combines multiple oiled cotton gauze and synthetic fiber layers to deliver ultimate airflow and protection. Lifetime Warranty.
Not sure which 2004 Ford Explorer Air Filters - Custom Fit is right for you? We have over 14143 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"My 2004 Ford Explorer has the 4.0L V6 flex fuel engine. I've gone through 2 Motorcraft air filters in 40k miles. Decided it was time for a K&N and I wish I had done so sooner. P/N 33-2207 fits perfectly and was easy to install. The supplied gasket fits on nicely and prevents any air from short-circuiting around the filter through the airbox lid. The K&N filter is also thinner than the stock filter, providing for more volume of air in the airbox." —Jerry F from Livermore, CA bought a K&N Air Filters for a 2004 Ford Explorer, Standard Explorer, 4.0L V6.
"Love it so far, easy to install. Instead of buying a number of standard filter, buy just one that last forever." —Timothy G from Glenville, NY bought a K&N Air Filters for a 2004 Ford Explorer.
"I just bought my 2004 Explorer and first thing I did was buy a K&N Air Filter. I had bought one for my husbands truck and he likes it so I knew that this filter was a good one. Thanks for the Fast and Free Shipping." —Tina R from Mount Airy, MD bought a K&N Air Filters for a 2004 Ford Explorer.
"purchased a OEM dirct replacement for my 04 explorer, was getting terrible mileage and poor acceleration. Installed the k&n filter and in one week have seen awesome results. increased mileage by 1.5 mpg already and increased accelerataion. would recomend this to anyone." —Daniel C from Schenectady, NY bought a K&N Air Filters for a 2004 Ford Explorer.
"I have just installed a K&N filter in my 2004 Ford Explorer V8 and I now have K&N's in all my vehicles; I like the thought that it improves breathing, never needs to be replaced (only cleaned) and ostensibly adds a few horses! My Explorer feels livelier (whether or not that is only in my mind) I am a believer and if you are a car guy and do not want to spend money on a K&N cold air intake system, get the K&N filter, it is great! By the way, shop AutoAnything for the best price anywhere on a K&N!" —Francois W from Burlington, ON bought a K&N Air Filters for a 2004 Ford Explorer.
"This filter really helps give my 04 Explorer the extra kick it needs in the pedal and helps improve my gas mileage as well." —Michael Z from Chandler, AZ bought a K&N Air Filters for a 2004 Ford Explorer.
"I recently installed a K&N filter on my 2004 Ford Explorer at 20,000 miles. It seems that the throttle is more responsive, no noticable lag at all. I am very pleased with the results of replacing the filter with the K&N. Gas milage seems a bit better too as long as I am not trying to see how much extra power that is has gained! Averaged nearly 21 mpg on a recent road trip, over 16 in the city. Not great milage, but I can live with it." —Timothy O from Litchfield, NH bought a K&N Air Filters for a 2004 Ford Explorer.
"I installed the K&N Air Filter in my Sport Trac with 90,000 miles, I had an increase of gas mileage from 19 mpg to 20.5 mpg." —Anthony P from Humboldt, TN bought a K&N Air Filters for a 2004 Ford Explorer.
"It appears that the hype of 10% more power and 10% better milage area accurate. I have a Ford Explorer and with the price of gas, and extra is a help. Therefore, the investment of the K&N Air filter I hope will save me money in the long run." —Charles C from Annandale, VA bought a K&N Air Filters for a 2004 Ford Explorer.
"I recently added a K&N air filter to my 2004 V8 Explorer, which has 53,000 miles, immediately the mileage went up 1-2 MPG in town. I can't wait to see the difference on the highway!" —Clay Y from Dallas, TX bought a K&N Air Filters for a 2004 Ford Explorer.