2016–2018 Chevy Silverado 1500 Bulb Size Guide | Headlight, Tail Light & More

Introduction

If you drive a 2016, 2017, or 2018 Chevy Silverado 1500 and you're planning to replace a headlight bulb, upgrade to LED lighting, or simply want a reliable reference for every exterior and interior bulb—this guide has you covered.

The 2016–2018 Silverado belongs to the updated third generation of the model, and while it shares a common platform, bulb types can vary slightly between trims and lighting packages (especially when it comes to HID vs. halogen headlights). That’s why having an accurate, year-specific bulb size chart is essential.

In this article, you'll find a complete breakdown of 2016–2018 Silverado 1500 headlight bulb sizes, tail light types, fog light compatibility, and LED upgrade recommendations—plus installation tips and answers to common bulb-related questions. Whether you're troubleshooting a burnt-out light or upgrading your truck's lighting system for better safety and visibility, everything you need starts here.

Bulb Size Chart for 2016–2018 Chevy Silverado 1500

Before replacing or upgrading the lights on your Silverado, it’s important to confirm the correct bulb size. From factory-installed HID headlights to standard tail lights and interior bulbs, having an accurate reference will help you avoid fitment issues and ensure optimal lighting performance.

The chart below lists all major bulb locations for 2016, 2017, and 2018 Chevy Silverado 1500 models, including headlight, brake, reverse, and license plate lights. Always verify your trim level, as some variations (like HID vs. halogen) may apply. Note: Fog lights are not equipped on these model years from the factory.

Pro Tip: If your 2018 Silverado came with factory HID (D5S), you’ll want to use a compatible HID or upgraded LED assembly—standard halogen bulbs won’t fit this housing.

Installation Tips & Compatibility Checks

Upgrading the lighting system on your 2016–2018 Chevy Silverado 1500 is generally straightforward, especially when using plug-and-play LED products. However, there are a few key installation and compatibility tips to ensure a smooth and successful upgrade.

Headlight Assembly Installation (D5S Housing)

• Open the hood and locate the mounting screws behind the headlight.
• Remove any retaining bolts and pull the headlight housing forward.
• Disconnect the factory HID connectors (if equipped).
• Install the new LED assembly or replacement bulb and reconnect wiring.
• Test lighting function before securing the housing.

Note: D5S HID bulbs require careful handling—avoid touching the glass and check alignment before full installation.

Tail Light Assembly Replacement

• Open the tailgate to access mounting bolts inside the tail light panel.
• Use a T15 Torx or 10mm socket to remove screws.
• Gently pull the tail light outward and disconnect the wiring harness.
• Connect Hawkglow LED tail light assembly.
• Secure the housing and test brake, turn, and reverse lights.
  

Compatibility Checks Before Upgrading

• Confirm your model year and trim (WT, LS, LT, High Country, etc.).
• Check factory lighting type (HID or halogen).
• Look for OEM bulb type labels on the back of each housing.
• Ensure LED bulbs are polarity-correct (plug in both ways if needed).
• Test function before reinstalling housings completely.

Frequently Asked Questions

1. What headlight bulb does a 2018 Chevy Silverado 1500 use?

The 2018 Silverado 1500 uses a D5S HID bulb for both low and high beams in most trims.

2. Does the 2016–2018 Silverado 1500 come with fog lights?

No, factory fog lights are not included on most 2016–2018 Silverado 1500 models.

3. Can I replace the tail lights on my 2017 Silverado 1500 with LEDs?

Yes, you can upgrade to LED tail light assemblies, but ensure they match the 7443 bulb base and fit your trim level.

4. How do I know if my Silverado uses HID or halogen headlights?

Check the bulb label on the back of the headlight housing. Most trims use factory HID (D5S) bulbs.

5. Are the headlight and tail light bulb sizes the same for 2016, 2017, and 2018 Silverado 1500?

Yes, most lighting components—including D5S headlights and 7443 tail lights—remain consistent across 2016–2018 models.

6. How to replace headlight in a 2018 Chevy Silverado?

To replace the headlight in a 2018 Silverado 1500:

• Open the hood and locate the headlight housing.
• Remove the mounting bolts and gently pull the housing forward.
• Disconnect the D5S HID bulb connector.
• Install the new bulb or assembly and reconnect the wiring.
• Test the light before re-securing the housing.

Note: D5S HID bulbs should not be touched directly—wear gloves and handle by the base.

Conclusion

Understanding the correct bulb sizes and installation steps for your 2016–2018 Chevy Silverado 1500 ensures a smooth upgrade and better lighting performance. While factory fog lights are not included and HID systems may require care during replacement, this guide gives you a complete overview of what to expect. Bookmark this page for future reference or share it with fellow Silverado owners.

Related Reading

Explore other Silverado lighting guides:

• 1999–2006 Chevy Silverado 1500 Bulb Size Chart

• 2007–2013 Chevy Silverado 1500 Bulb Size Guide

• 2014–2015 Chevy Silverado 1500 Bulb Sizes Guide