What size fog light for 2019 F150?

The 2019 Ford F-150 uses 3.75-inch round fog light housings (about 95 mm in diameter). This is the standard size for factory fog lights on that model year, and it informs most replacement and aftermarket options.

In practice, this means you’ll want to shop for 3.75-inch round fog lights first. Some aftermarket 4-inch options may fit with adapters or minor modifications, but the safest and most straightforward choice is a 3.75-inch unit that matches the stock mounting and bulb configuration. Always verify fitment for your specific trim and bumper design before purchasing.

Size specifics and replacement options

Details that help you choose the right fog light replacement, including the typical bulb configuration and how the size translates to fitment.

Bulb type and electrical considerations

Most 2019 F-150 fog lights use a 3.75-inch round housing with a common bulb configuration such as H11 for fog lighting. If you upgrade to LEDs, ensure the new unit is designed for 12V systems and includes appropriate heat management and wiring compatibility.

• Diameter: 3.75 inches (95 mm) for the fog light housing


• Typical bulb type: H11 (12V, around 55W) is common on many trims; check your exact build as configurations can vary


• Fitment notes: Round, bumper-integrated fog light housing; verify mounting depth and connector compatibility with aftermarket replacements

When shopping, confirm the exact bulb type and connector for your specific trim to avoid fitment issues. If upgrading to LEDs, choose products rated for automotive use with proper thermal management and weather sealing.

Choosing aftermarket options (by size)

Guidance on what to look for when replacing or upgrading fog lights, including how size affects compatibility and installation.

• 3.75-inch round fog lights: The closest match to stock size; widely available in LED and halogen options; easiest fit for most 2019 F-150 trims


• 4-inch round fog lights: Can fit in some bumper openings with adapters or mounting adjustments; not always compatible without modification

To ensure a trouble-free upgrade, stick to 3.75-inch units when possible. If you choose a 4-inch option, consult installation guides or a professional to assess required adapters, mounting hardware, and potential clearance issues.

Installation tips and precautions

Practical steps to prepare for and execute a fog light replacement, minimizing risk and ensuring optimal performance.

• Disconnect the negative battery terminal before replacing to prevent shorts


• Verify the wiring harness type and connector fit (commonly H11 for fog lights on this model) and have the appropriate adapters if needed


• Test the new fog lights before final mounting to confirm beam pattern and electrical function

Following these steps helps ensure a clean installation and reliable operation in adverse weather conditions.

Summary

For a 2019 Ford F-150, the standard fog light size is 3.75 inches in diameter. When shopping, prioritize 3.75" round fog lights to match the stock fitment, with 4" options only if you’re prepared to use adapters or modify mounting. Always confirm bulb type and connector compatibility for your specific trim before purchasing.

Can I use H11 for fog lights?

Yes, you can use H11 bulbs for fog lights, as they are a common fit, but you should always check your vehicle's specific requirements first. While H11s are often used for low beams, they are also a popular choice for fog lights, and many manufacturers make H11 LED versions specifically for this purpose. Be sure to confirm compatibility and, for halogen H11s, be mindful of heat if your fog light lens is plastic, as some suggest LEDs are a safer alternative to avoid melting the plastic.
 
Key considerations 
This video explains the differences between H8, H9, and H11 bulbs: 53sHeadlight RevolutionYouTube · Nov 1, 2023

• Vehicle compatibility: Always consult your owner's manual to confirm the correct bulb type for your specific vehicle. Some cars that use H11 for low beams may use a different, though similar-looking, bulb like an H8 or H16 for fog lights. 
• Wattage: H11 halogen bulbs are typically 55 watts, while the lower-wattage H8 is often used for fog lights. Fog lights are designed to be less bright and more focused to cut through fog without reflecting back as much, so using an H11 halogen might be overkill. 
• LEDs vs. Halogen: For fog light upgrades, H11 LEDs are frequently recommended as a good option. They are often designed to work in H8/H11/H16 sockets and can provide a clearer, brighter light. 
• Heat and lens material: Be cautious if using high-wattage halogen H11 bulbs in plastic fog light lenses, as the heat could potentially melt them. LEDs can be a safer alternative to avoid this issue. 
• Installation: When replacing halogen bulbs with LED H11s, it is often a direct, plug-and-play replacement, but always verify the fit before purchasing. 

This video demonstrates how to replace H11 LED fog lights in a Honda Pilot: 56s4DIYersYouTube · Sep 21, 2024

What size are my fog light bulbs?

Fog light bulb sizes vary by vehicle model, but common sizes include H11, 9005, 9006, and H10. The best way to find the correct size is to check your vehicle's owner's manual or use an online bulb finder tool on a parts retailer's website. 
Common fog light bulb sizes

• H11: A very common size often used for both fog lights and low-beam headlights, and is interchangeable with H8, H9, and H16 bulbs. 
• 9005 (HB3): While sometimes used for fog lights, this bulb is more powerful and generally better suited for high-beam applications. 
• 9006 (HB4): Another common size that is frequently used for fog lights. 
• H10: This is another size used for fog lights, sometimes listed with equivalents like 9140 and 9145. 
• 5202 (PS24W): Used in some vehicles, particularly older models like the 2014-2015 Chevy Silverado. 

How to find the right bulb for your vehicle

• Check your owner's manual: This is the most reliable way to confirm the exact bulb size for your make and model. 
• Use an online bulb finder: Many automotive parts websites have a "bulb finder" tool where you can enter your vehicle's information to get a list of compatible bulbs. 
• Look at the existing bulb: You can often find the size printed on the plastic base of the old bulb. 

What size bulbs are in the Ford F-150?

The bulb sizes for a Ford F-150 vary by model year and trim, so it is essential to check your owner's manual or current bulbs before purchasing. For a recent model (2019-2022) with halogen headlights, the low beams are typically H11 and the high beams are 9005. If your F-150 has LED headlights from the factory, you will need to purchase LED-specific bulbs.
 
Common bulb sizes by model year

• 2015-2018:
  • Low beam headlights: H11 
  • High beam headlights: 9005 (HB3) 
  • Fog lights: 9140 (H10/9145) 
• 2019-2022:
  • Low beam headlights: H11 
  • High beam headlights: 9005 (HB3) 
  • Fog lights: 9145 (H10/9140) 
• Older models (e.g., 2007-2012):
  • Headlights (high and low beam): H13/9008 

Other common bulb types

• Brake/Tail/Rear Turn Signal: 3157/3156
• High-mounted Brake Light: T15/921/912
• Front Turn Signal: 7443/7440
• License Plate Light: T10/194/168 

What bulbs go in a 2019 F-150?

A 2019 Ford F-150 uses H11 bulbs for the low beam headlights, 9005 (HB3) for the high beams, and H10 (9140) for the fog lights. Other common bulbs include 3157 for brake lights, 912 (T15) for the high-mounted brake light, and 168 for the license plate light. 
Headlights

• Low beam: H11 (or H8/H9)
• High beam: 9005 (or HB3)
• Fog light: H10 (or 9140/9145) 

Other exterior lights

• Brake light: 3157
• High-mounted brake light: 912 (or T15)
• Reverse light: 7440 or 3156/3157
• Front turn signal: 7443 (or 7444NA)
• Rear turn signal: 3156 (or 3157)
• License plate light: 168 (or 194)