The typical halogen setup for a 2018 Ford F-150 uses H11 bulbs for the low beams, 9005 bulbs for the high beams, and H11 bulbs for the fog lights. If your truck uses HID or LED headlights, sizes and replacement methods may differ and you should consult the owner’s manual or your dealer.
For most 2018 F-150 models with halogen headlights, the following sizes apply by function. This overview helps you identify what to purchase when servicing or upgrading your headlights.
Headlight bulb sizes by function
The list below summarizes the standard bulb sizes used in the common halogen-equipped 2018 F-150 headlight system:
- Low beam: H11 (55W)
- High beam: 9005 (65W)
- Fog lights: H11 (55W)
When replacing bulbs, always confirm the exact type for your vehicle by checking the bulb currently installed or the owner’s manual. Some trims with optional lighting packages may differ or use different bulb configurations.
Upgrade considerations
If you’re considering upgrading to LED or HID bulbs, note that compatibility, wiring, and ballast requirements vary. Some upgrades may require additional adapters or modifications, and certain factory lighting packages may not support non-OEM bulbs without professional installation.
Summary
For the 2018 Ford F-150 with a typical halogen headlight setup, the practical bulb sizes are: low beams H11, high beams 9005, and fog lights H11. Always verify with your specific vehicle’s documentation or by inspecting the existing bulbs, especially if your trim includes optional HID/LED lighting.