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LED Brake, Tail & Turn Signal Bulbs for Trucks | Silverado, Sierra & Ford F-Series

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LED Turn Signal, Brake & Tail Light Bulbs Engineered for Trucks and SUVs

Underground Lighting collection is dedicated to LED signalling and rear lighting bulbs, including turn signal lights, or direction indicators, brake lights, tail lights, and reverse lights used in cars, SUVs, and full-size trucks. These lights perform safety-critical functions such as turning, lane changing, braking, merging, and hazard indication, where visibility, response time, and legal color compliance are mandatory.

All products use solid-state LED modules that produce light through electroluminescence at a semiconductor p-n junction, eliminating the filaments found in halogen bulbs. This enables instant illumination, consistent brightness, and long service life. Compared to halogen signal bulbs, LED turn signals activate milliseconds faster, improving reaction time for vehicles behind you. 

The collection includes front, rear, and vehicle-specific LED turn signals with a built in resistor and tail light bulbs for popular truck platforms such as Chevrolet Silverado (1999–2024), GMC Sierra (1999–2021), and Ford F-Series / F-150 / F-250 (1997–2025). Both front turn signal and rear brake/turn signal positions are covered, along with reverse backup bulbs and tail/marker light LEDs.

Supported bulb bases include 3156, 3157, 7440, 7443, 7444, 1156, 1157, PY21 (7507), WT21 (4257) and related variants. These bases replace traditional dual-filament halogen bulbs, with LED circuitry designed to emulate OEM flashing logic. CANbus-compatible LED bulbs are included to prevent hyperflash, dashboard warnings, and fast blinking caused by lower LED resistance. Still not convinced, click here to read more about upgrading to LED indicator lights or blinkers

All turn signal LEDs emit regulated amber light, while brake and tail lights emit red, complying with DOT / SAE / FMVSS color mandates. Flash rate remains within the legally required 60–120 flashes per minute when CANbus or load-corrected bulbs are used.

Still confused, contact our experts and find the right fit for your vehicle. We’re just a click away!

6 Data-Driven Benefits of LED Brake, Tail & Turn Signal Bulbs

  • Faster Illumination Improves Reaction Time

    LED turn signal and brake bulbs activate instantly, unlike halogen filaments that require a heat-up time. Faster illumination improves following-driver reaction time during braking and lane changes.

  • Clear Amber & Red Output for Legal Compliance

    All turn signal bulbs emit regulated amber, and brake/tail bulbs emit regulated red, meeting traffic law color mandates enforced by DOT, SAE, and FMVSS standards.

  • Wide Visibility Angle Enhances Signalling

    LED modules distribute light across a wide viewing angle, improving visibility from the side, rear, and adjacent lanes—critical for merging and turning safety.

  • CANbus Error-Free Operation Prevents Hyperflash

    CANbus-compatible bulbs maintain correct electrical load, preventing hyperflash, fast blinking, and dashboard indicator errors common when converting from halogen to LED.

  • 25,000–50,000+ Hour Service Life

    LED signalling bulbs last up to 50× longer than halogen (400–1,000 hours), reducing bulb failure, maintenance frequency, and downtime.

  • Improved Styling Without Sacrificing Function & Weather Resistant

    Reliable weather proof LED tail and turn signal bulbs provide a clean, modern appearance while maintaining OEM signalling behaviour, avoiding the visibility and legality issues of poorly designed aftermarket lights.

How to Find Out Which Replacement Turn Signal Bulb or Brake Light Bulb You Need

Start by identifying your vehicle's specific bulb requirements to ensure compatibility and optimal performance.

Check your bulb number in three quick steps:

  1. Locate your current turn signal bulb or brake lightbulb, carefully remove it from the housing, and check the part number on its base. Common bulb sizes are 1156, 1157, 7440, 7443, 3157, and 3156. Each type has specific base configurations and electrical requirements that must match your vehicle's specifications.
  2. Enter your vehicle's year, make, and model into our fitment finder to verify the exact bulb you need. You can also check the maintenance section in your owner's manual.
  3. Choose your LED turn signal bulb or LED brake light bulb with confidence. Our Fit Guarantee ensures you'll receive the correct bulb that perfectly matches your vehicle's specifications.

Do you need help choosing the right LED light? Our customer service team is ready to help you identify the perfect LED brake light or turn signal bulb for your specific vehicle.

Are you looking for brake lights and turn signal bulbs for your vehicle? Use our vehicle part search today!

Vehicle Part Search

Frequently Asked Questions

Frequently Asked Questions

Yes, most vehicles accept LED brake lights as long as you match the correct bulb size. Check your current bulb number to confirm the exact style your car uses.

Yes. LED brake lights create a stronger, clearer burst of light that often stands out faster to other drivers. This makes your signals easier to see in daylight, at night, and in poor weather.

While LED conversion kits work with most vehicles, compatibility depends on your specific make and model. Some vehicles may require additional components for proper operation. Use our vehicle finder tool so we can check compatibility and get the exact kit designed for your car or truck. We make sure you'll receive the right bulb type and any necessary accessories for a successful upgrade.

Installing LED headlight conversion kits is a straightforward process that most people can complete in under 30 minutes. Here's what to expect:

  1. Access your existing headlight bulbs (check your owner's manual for location)
  2. Remove the old halogen bulbs
  3. Install your new LED bulbs
  4. Connect the LED drivers (power adapters)
  5. Test your new lights

If you experience headlight flickering or error messages, you may need a load resistor to quickly resolve these issues. Every kit comes with detailed instructions, and our support team is ready to help if you need assistance.

Yes! Replacing your outdated, dull, and dim Halogen headlight bulbs is easy when you use one of our LED bulbs. Our simple, fast “plug and play” installs can be done by just about anyone, and our wide varieties of LED bulbs are compatible with most makes and models, including some after-market vehicles. Reach out to us today, and we can help you choose the right LED bulbs in no time.

Converting to LED headlights is a cost-effective upgrade when you consider the long-term benefits. While the initial investment is higher than traditional halogen bulbs, LED conversion kits pay for themselves through extended lifespan, reduced power consumption, and minimal maintenance.

Our kits are competitively priced to provide maximum value, with options for different budgets and performance needs. Factor in the improved safety and modern appearance, and LED headlights become a smart investment in your vehicle.

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