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 2003 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:
"I use K&N products on all my vehicles, truck, Explorer and Harley and have had great success. I put the factory replacement air filter on my wife's Explorer and the gas mileage has improved, but it seems to run a little erratic at times. This may be in part due to the computer learning the system. The cold air intake system by K&N is used on my 2001 Ford F150 with great results....better gas mileage, more power and that awesome growl when accelerating. The gas mileage savings on the Explorer is well worth the purchase price for the filter. K&N filter works great on my Harley Roadking also offering great power, increased mileage and the wonderful million mile warranty where another filter won't have to be purchased for the life of the vehicle. I love the product and as you can see, I have them on all my vehicles." —Bill T from Clemmons, NC bought a K&N Air Filters for a 2003 Ford Explorer.
"Have only had the K&N drop-in air filter for a little over two weeks so do not have much to add as far a performance goes just yet, however installing the filter on my Explorer Sport Trac was as simple as it gets. The thought of not having to buy another air filter again makes me smile!" —Jay O from Palm Bay, FL bought a K&N Air Filters for a 2003 Ford Explorer.
"I USE K&N FILTERS IN ALL MY CARS AND MOTORCYCLES. VERY PLEASED WITH THE PERFORMANCE." —Mario M from Carol Stream, IL bought a K&N Air Filters for a 2003 Ford Explorer.
"I have switched to K & N Air Filters on all family vehicles, and I have several friends who have done the same. Vehicle performance and gas mileage definitely improves. I would recommend K & N products to everyone! It's a no-brainer." —Shannon Z from Valdosta, GA bought a K&N Air Filters for a 2003 Ford Explorer.
"The K&N air filter is well worht the money. I replaced the orginal air filter in my 2003 Ford Explorer Sportac and my wifes 2005 Escape. The Escape is averaging two miles to the gallon better tha with the orginal Ford filter and seems to have gained more horse power.
The Sportrac I have not checked mileage but I do know it has more get and go.
Thank you AutoAnything for the great price I save $68.00 by purchasing these items from you.
Mandan, ND" —David H. F from Mandan, ND bought a K&N Air Filters for a 2003 Ford Explorer.
"Ease of installation. Performance incsease noticable. Also increase in gas mileage." —Michael P. W from Casselberry, FL bought a K&N Air Filters for a 2003 Ford Explorer.
"i have to say that it was a little intimidating when i opened the box and saw all the parts, but with the instructions handy i was able to install in less than 2 hours. this is a great product and i stand by K and n products to the fullest." —Karen F from Middle Village, NY bought a K&N Air Filters for a 2003 Ford Explorer, 2.4L 4-cyl. engine.
"Installation was a nonissue (btw the filter is preoiled). Quality was good. As long as it lasts forever as advertised I'll be happy." —Jason H from Saint Louis, MO bought a K&N Air Filters for a 2003 Ford Explorer.
"I currently own 2 corvettes as well as a mustang convertible and 3 cars for the kids. Every one has K&N filters. In the long run they save money and improve prefeomance.
PMR" —Philip R from Port Charlotte, FL bought a K&N Air Filters for a 2003 Ford Explorer.
"I could feel the increased H.P. right away,gas mileage has also increased slightly." —Richard W from Las Vegas, NV bought a K&N Air Filters for a 2003 Ford Explorer.
"had one on 2 diesel engines in trucks and they improved mileage. haven't had this one in truck long enough to check mileage. several years ago saw K&N filter demo. and the imp`roved air flow convinced me. easy to install." —W. G. C from Gilmer, TX bought a K&N Air Filters for a 2003 Ford Explorer, Sport Trac, 4.0L V6.