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2018–2020 Ford F-150 LED Lighting

Designed for compatible 2018–2020 Ford F-150 lighting applications, this collection includes LED and HID upgrades for headlights, fog lights, brake lights, turn signals, and other exterior lighting. Common applications include 9005 high beams, H11 low beams, 9140 fog lights, and several rear and signal bulb sizes, but exact fitment varies by year and factory lighting configuration.
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With a 4.95 average rating across Google and Judge.me, Underground Lighting has earned the trust of drivers looking for dependable LED lighting upgrades. See why customers choose us for fitment support, quality products, fast shipping, and brighter lighting solutions for cars, trucks, and SUVs.

Ford Truck Lighting Upgrades for F150 2018-2020 

Underground Lighting brings Ford truck lighting upgrades for all areas particularly forward lighting, fog lights, exterior signals, and rear visibility. Instead of universal fit for every F-series truck, you can pick your upgrade by bulb type, lamp position and model-year application.

The collection includes LED headlight and fog-light upgrades, HID replacement bulbs, front turn signal bulbs, rear brake/turn signal bulbs, and reverse-light replacements. Available applications include F-150, F-250, and F-350 models. Fitment varies by year, trim, lamp position, and factory lighting setup on your specific truck.

Headlight Upgrades.

Our headlight lineup for the 2018–2020 F-150 covers H11 low beams and 9005/HB3 high beams in LED. Both come in 60W kits built for plug-and-play installation. For trucks with factory HID projectors, we also carry 35W HID kits in H11 and 9005 sizes. These are direct swaps for your existing HID bulbs, not conversions for halogen housings.

Fog Light Upgrades

F-150 fog light applications include H10/HB3 LED replacements, available in 6000K white and 3000K yellow. These are built for the matching factory fog light housing, not as a one-size-fits-all swap across every Ford truck.

Turn Signal & Brake Light Upgrades

Underground Lighting carries Ford-specific LED signal bulbs in 3157, 7443, and 4257 applications. Select products include built-in resistor and CANbus-compatible circuitry, which helps the bulb keep a normal flash rate instead of triggering hyperflash.

Reverse Light Upgrades

Reverse-light replacements for the 2018–2020 F-150 use a 7440/7443 base. These are plug-and-play, no wiring needed. Other Ford model years use different formats, like 3156/3157 or 921/T15, so always confirm your truck's year before ordering.

Ford F-150, F-250 & F-350 Fitment

Ford truck lighting fitment changes across generations, model years, trims, and lamp positions, so Underground Lighting's Ford collection is built around multiple specific applications rather than one bulb to fit every F-Series truck on the road.

Current product applications include:

  • 1997–2014: selected 3157 front/rear signal applications
  • 2004–2014: H13/9008 headlight applications
  • 2009–2014: 921/T15 reverse-light applications
  • 2013–2014: D3S HID headlight applications on compatible factory HID systems
  • 2015–2018: selected 7443 front signal applications
  • 2015–2023: H11 low-beam applications
  • 2018–2023: 9005/HB3 high-beam applications
  • 2019–2021: selected 4257 front signal applications for F-Series trucks
  • 2020–2023: selected 4257 F-150 front signal applications
  • 2021–2025: selected 4257 rear brake/turn applications

These ranges represent specific products and applications rather than a universal fitment for every trim or configuration. That’s why it's recommended to  match the bulb position and factory lighting setup before ordering.

Why Choose Underground Lighting Ford F-150 Lighting Upgrades

  • Vehicle-Specific Reverse Lighting

    The Underground Lighting 2018–2020 F-150 reverse-light option uses a 7440/7443 plug-and-play base and can deliver a significantly higher rear illumination (500 lumens per bulb) for safer nighttime backing up and trailer hookups.

  • Built-In Resistor Options for Signal Circuits

    Underground Lighting offers compatible turn-signal and brake-light products with built-in resistors, helping address hyperflash on applicable F-150 circuits.

  • Multiple Bulb Types for Different F-150 Applications

    The collection covers 7440/7443, 3156/3157, 4257, 9005/HB3, H10 and H11, allowing the replacement to be matched to the original lighting position rather than using one universal bulb.

  • LED & HID Technology Options

    Underground Lighting provides both LED and HID choices within the F-150 collection, including 60W LED and 35W HID kits for applicable forward-lighting positions.

  • Plug-and-Play Replacement Options

    Several Underground Lighting products use direct-fit bases and plug-and-play installation, including the dedicated 7440/7443 reverse bulbs that require no wiring or modifications.

  • Tested Output on Dedicated Reverse Bulbs

    The Underground Lighting 2018–2020 F-150 reverse bulbs comes with 500-lumen measured output, with a projector lens and side illumination designed to improve rear light coverage.

How to Choose the Right Ford F-150 Lighting Upgrade

Start with the lighting position and factory bulb number, not just the F-150 model year. Different lighting positions can use different bulb bases, circuits, and electrical requirements. Underground Lighting’s vehicle search can help narrow the available options before installation.

  • Check the bulb number: Confirm whether your application uses 7440/7443, 3156/3157, 4257, 9005/HB3, H10, H11, or another bulb type.
  • Choose LED or HID: Use LED for instant response and efficient operation; choose HID where the vehicle and housing are designed for HID.
  • Check CANbus requirements: Vehicles that monitor bulb load may require CANbus or resistor-equipped products.
  • Match the lighting function: Headlights, fog lights, turn signals, brake lights, and reverse lights have different requirements.
  • Verify the exact year and configuration: Some products cover wider Ford ranges, so confirm your specific 2018, 2019, or 2020 F-150 before ordering.
  • Check physical fitment: Make sure the replacement bulb has adequate housing clearance and the correct socket/base configuration.

Watch these helpful Underground Lighting videos for step-by-step guidance, product details, and real-world installation tips.

Find the Right Lighting for Your F-150

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The Underground Lighting 4257 LED pair is listed at $64.99. The price is for two amber LED bulbs.

Fast blinking, or hyperflash, can happen when an LED has a lower electrical load than the factory bulb. This 4257 LED has a built-in resistor to help maintain the normal flash rate without an external resistor.

Ford LED and HID replacement bulbs at Underground Lighting range from $39.99 to $199.99, based on the application. Reverse light pairs start at $39.99. Signal bulbs run $64.99 to $69.99. The D3S HID replacement pair is $99.99. H11, 9005/HB3, and H10 LED kits run around $180. H13/9008 LED headlight bulbs are $199.99. Prices and promotions can change.

Replacing both sides together is generally recommended when the bulbs are the same age, particularly with HID systems. Matching the pair helps maintain more consistent light output and color between the two headlights.

Yes, as long as each upgrade matches its specific lighting position and factory system. A truck can run an LED signal or fog light replacement while keeping a compatible HID projector system in the headlights. What matters is the fit for each position, not the technology.

Yes. Replacing only one lighting function can create a noticeable difference in color or brightness between different lamps. Buy bulbs in pairs for the position you're upgrading so both sides match in output and color. For a more consistent look overall, pick the same color temperature and lighting technology across every position you plan to upgrade.

Start by checking the bulb orientation, connector engagement, socket contacts, fuse, and vehicle-side wiring. If the replacement uses a vehicle-specific electrical design, also confirm that the product matches the exact year, trim, and lamp position.

A D3S HID replacement is appropriate when the vehicle already uses a compatible D3S HID projector system and the bulb itself has degraded. If the issue is caused by the ballast, wiring, projector, or headlight housing, replacing the bulb alone may not resolve it.

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