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In-depth guide
2018 Ford F-150
2018 F-150 cabin filter is Motorcraft FP-79 on every engine table read. It sits behind the glove box.
| Item | Figure |
|---|---|
| Location | Behind the glove box. |
| Part | Motorcraft FP-79 on the 2.7L EcoBoost, 3.0L diesel, 3.3L Duratec, 3.5L EcoBoost, and 5.0L tables. |
Source: owner's manual / last verified 2026-10-15 (2018 F-150 Owner's Manual, third printing, February 2018, cabin air filter and Motorcraft parts (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2018 F-150 Owner's Manual, third printing, February 2018, cabin air filter and Motorcraft parts (opens in a new tab), Ford Motor Company, published 2018-02-01, read 2026-10-15.
Numbers on this page come from the cited source. Match the engine before you use a capacity or a torque. Do not work under a vehicle held only by a jack.
| Item | Figure | Where it comes from |
|---|---|---|
| Location | Behind the glove box. | Cabin air filter |
| Part | Motorcraft FP-79 on the 2.7L EcoBoost, 3.0L diesel, 3.3L Duratec, 3.5L EcoBoost, and 5.0L tables. | Motorcraft parts |
The climate-control section says the cabin air filter is behind the glove box. It reduces particle concentration, keeps the interior cleaner, and protects the climate-control parts.
The Motorcraft tables list cabin air filter FP-79 for the 2.7L EcoBoost, the 3.0L V6 diesel, the 3.3L Duratec V6, the 3.5L EcoBoost, and the 5.0L.
The same section says to see an authorized dealer for more information or to replace the filter. Replace it at the scheduled-maintenance interval. The page does not describe dropping the glove box.
The 2018 F-150 climate section locates the cabin filter behind the glove box and sends the replacement to an authorized dealer. The Motorcraft parts pages list FP-79 on each engine table that was read: 2.7L EcoBoost, 3.0L diesel, 3.3L Duratec, 3.5L EcoBoost, and 5.0L.
A filter has to stay installed. The manual says running the system without one can degrade or damage the system. No glove-box screw or door sequence is printed, so none is added.
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Part
Motorcraft FP-79 cabin air filter
Listed on the 2.7L EcoBoost, 3.0L diesel, 3.3L, 3.5L EcoBoost, and 5.0L Motorcraft tables. The manual does not print the removal steps.
FP-79 in the 2018 F-150 owner's manual (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)
The maintenance checklist is on the site now. The email list is not sending yet, so this box will not store an address.
Same repair, different model year. Use the page that matches the truck or car in the driveway. A figure on one year is not a figure for the next.
These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.