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.
Want serious filtration and maximum airflow? The only air filter you’ll ever need is the aFe Pro-Guard 7 Air Filter. Built from 7 layers of cotton gauze, these performance air filters stop grit from clogging your motor without hindering flow. Fully cleanable and reusable. Lifetime Warranty.
Not sure which 2004 Ford F-350 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:
"Struggled a bit getting everything to fit just right ... it's crowded under the hood ... but it went pretty well and my truck had an immediate boost in power. I don't know if it will improve mileage yet, but I'll know in a month or so." —Jerry R from Ocala, FL bought a K&N Air Filters for a 2004 Ford F-350, 6.0L Powerstroke.
"This is the second K&N Air Filter I've used. The first was on my 1995 F250 diesel. I'm not a mechanic ... but when I took my 95 in for it's second tune up, at 200,000 miles the shop said the engine was in great shape. I've already noticed better performance in my new F350. I haven't checked the fuel milage yet.
I believe in preventative maintenance ... frequent oil changes and a good air filter are great insurance." —Jim R from Carbondale, CO bought a K&N Air Filters for a 2004 Ford F-350.
"i like the fact you only have to buy one and easy way to get better gas mileage." —Jason R from Worcester, MA bought a K&N Air Filters for a 2004 Ford F-350.