Best Headlight Relays

Looking for the best headlight relays to enhance your vehicle’s lighting? We’ve curated a list of top-rated options, tested for durability and performance, to help you drive safer and see clearer with ease.

Headlight relays are essential for bright, reliable lighting on your vehicle. They fix dim or flickering lights and boost performance, making night drives safer. Whether you’re upgrading to LED headlights or replacing old parts, the right relay makes all the difference.

Choosing the best headlight relay can feel overwhelming, but we’ve done the work for you. Our guide highlights top-rated options that fit popular brands like Chevrolet, Toyota, and GMC. Each relay is tested for durability, ease of installation, and performance, so you get the best value.

Upgrade your lights today. Drive safer and see clearer. Let’s find the perfect relay for your vehicle!

List of Top 10 Headlight Relays

Title	Best For	Price
True Mods H6054 H4 LED Headlight Wiring Harness [Negative Switched Conversion] [Fused] Universal H4 Head Light Relay Harness Kit for 9003 H6024 5×7 7×6 4×6 Subaru Toyota Jeep Sealed Beam Headlamp	This H4 LED headlight wiring harness is perfect for anyone upgrading to LED headlights on negative-switched vehicles like Toyota, Subaru, Mitsubishi, or Suzuki. It’s easy to install, saves time, and works with many headlight types.	View on Amazon (paid link)
(Pack of 2) Relay 15016745, 601-218 RY560 4-Pin Headlight Relay, Compatible for Chevrolet GMC Buick	This relay pack is perfect for Chevrolet, GMC, and Buick owners who need a reliable fix for headlight issues. It’s a direct replacement that works seamlessly with your vehicle’s system.	View on Amazon (paid link)
15016745 Headlight Relay (3 Pack) 12V 4-Pin DRL & Low Beam Relay Replacement for Chevrolet Trailblazer GMC Envoy Buick Rainier Isuzu Ascender, Replaces 601-218 13506836 Multi-Pack	This 3-pack headlight relay is perfect for GM SUV owners who want reliable lighting. It’s ideal for those with 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2004-2007 Buick Rainier, or 2003-2008 Isuzu Ascender. Keep spares handy to avoid headlight issues on the road.	View on Amazon (paid link)
KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem	This is perfect for anyone with a Toyota Pickup, Tacoma, or any ride using 7×6 or 5×7 headlights who is tired of dim lights, flicker, or one beam not working. It’s ideal for drivers who want a simple fix that makes their headlights bright, steady, and reliable.	View on Amazon (paid link)
[ALL STAR TRUCK PARTS] 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set	This 4-Headlight Relay Wiring Harness is perfect for anyone with dim, flickering, or malfunctioning headlights. If you’re upgrading to halogen bulbs or fixing H4 plug issues, this harness is your simple solution.	View on Amazon (paid link)
15016745 4-Pin Headlight Relay Fuse Module for Chevy Trailblazer GMC, Buick,Saab 9-7x, Isuzu, Pontiac Grand Prix, Oldsmobile Bravada Replace# 15016745 13506836 (4-Pin Headlight Relay Fuse Module)	This 4-Pin Headlight Relay Fuse Module is perfect for drivers who need a reliable fix for their headlight issues. It’s easy to install and works with many Chevy, GMC, Buick, Saab, Isuzu, Pontiac, and Oldsmobile models.	View on Amazon (paid link)
Painless Performance 30802 High Beam Headlight Relay Kit for 1988-1998 GM full-size trucks & SUVs	This Painless Performance 30802 High Beam Headlight Relay Kit is perfect for owners of 1988-1998 GM full-size trucks and SUVs who want brighter, safer nighttime driving. It’s easy to install and made in the USA.	View on Amazon (paid link)
Relay 15016745, 601-218 RY560 4-Pin Headlight Relay, Compatible for Chevrolet GMC Buick 15016745	This relay is perfect for Chevrolet, GMC, and Buick owners who need a reliable fix for their headlight issues. It’s easy to install and works seamlessly with your vehicle’s system.	View on Amazon (paid link)
15016745, 601-218 15016745 4-Pin Headlight Relay – Compatible with GM, Chevrolet, Buick, and GMC Models – High-Performance Multi-Purpose Relay for Headlight and Fan Clutch Repair	This relay is perfect for drivers who want quick, simple, and reliable fixes for headlight or fan clutch issues. It is ideal for anyone who needs a strong, long‑lasting part that fits many GM models with ease.	View on Amazon (paid link)
Vkinman H4 Relay Harness 9003 Headlight Relay Wiring Kit Ceramic Socket Plugs, Fit for 7×6 5×7 H6054 6054 Headlights Conversion Kit, Replacement for Toyota Tacoma 95-97	This H4 relay harness is perfect for drivers who want brighter headlights and safer driving. It’s ideal for Toyota Tacoma 95-97 owners or anyone using 7×6, 5×7, or H6054 headlights.	View on Amazon (paid link)

Detailed Reviews

Find the best headlight relays with this clear and simple guide. Each pick is chosen through expert review and real user experience. You’ll feel confident knowing you’re getting reliable parts that truly perform.

1. True Mods H6054 H4 LED Headlight Wiring Harness [Negative Switched Conversion] [Fused] Universal H4 Head Light Relay Harness Kit for 9003 H6024 5×7 7×6 4×6 Subaru Toyota Jeep Sealed Beam Headlamp

True Mods H6054 H4 LED Headlight Wiring Harness [Negative Switched Conversion] [Fused] Universal H4 Head Light Relay Harness Kit for 9003 H6024 5x7 7x6 4x6 Subaru Toyota Jeep Sealed Beam Headlamp

This wiring harness makes LED swaps simple. It fits many H4 sealed beam headlights. It works fast with a clean plug‑and‑play setup.

It turns a negative‑switched system into a positive‑switched one. It protects your parts with strong relays and ceramic sockets. It keeps your wiring safe with heat‑ready loom.

Install it in minutes. Keep your stock wiring untouched.

Pros	Cons
Easy plug-and-play setup Fast LED conversion Strong high‑heat parts Protects your stock wiring Reliable fused harness	Not for all cars, check compatibility before buying. Basic install skills needed, not fully plug-and-play. No bulbs included, must buy LEDs separately.

Perfect For:

This H4 LED headlight wiring harness is perfect for anyone upgrading to LED headlights on negative-switched vehicles like Toyota, Subaru, Mitsubishi, or Suzuki. It’s easy to install, saves time, and works with many headlight types.

Ready to Purchase?

View Price on Amazon (paid link)

2. (Pack of 2) Relay 15016745, 601-218 RY560 4-Pin Headlight Relay, Compatible for Chevrolet GMC Buick

Fix your car’s lights with this pack of 2 relays. They are made for Chevrolet, GMC, and Buick. These relays ensure smooth performance in your vehicle.

Replace the #46 relay in your fuse box easily. They match OEM parts like 15016745 and RY560. This ensures perfect fit and function.

High-quality materials make these relays last long. They fix high/low beams and DRLs. Enjoy reliable lighting for your car.

Pros	Cons
Perfect fit for Chevrolet, GMC, and Buick vehicles. Fixes lighting issues with high beams, low beams, and DRL. Direct replacement for #46 relay in the fuse box. Built to last with high-quality copper and durable plastic.	Only fits select Chevy, GMC, Buick models May need pro help if wiring is worn Not ideal for cars with custom light setups

Perfect For:

This relay pack is perfect for Chevrolet, GMC, and Buick owners who need a reliable fix for headlight issues. It’s a direct replacement that works seamlessly with your vehicle’s system.

Ready to Purchase?

View Price on Amazon (paid link)

3. 15016745 Headlight Relay (3 Pack) 12V 4-Pin DRL & Low Beam Relay Replacement for Chevrolet Trailblazer GMC Envoy Buick Rainier Isuzu Ascender, Replaces 601-218 13506836 Multi-Pack

15016745 Headlight Relay (3 Pack) 12V 4-Pin DRL & Low Beam Relay Replacement for Chevrolet Trailblazer GMC Envoy Buick Rainier Isuzu Ascender, Replaces 601-218 13506836 Multi-Pack

Brighten your drive with the 15016745 Headlight Relay 3-Pack. These 12V 4-pin relays are perfect replacements for your Chevrolet, GMC, Buick, or Isuzu SUV. They fit 2002-2009 models and solve common lighting issues.

Say goodbye to flickering headlights and annoying clicking sounds. These relays are built tough to handle high-current demands and extreme conditions. Keep your low beams and DRLs working reliably.

Three relays, one great value. Install one, keep two spares. Drive with confidence.

Pros	Cons
Fixes headlight issues like flickering or failure. Perfect fit for GM SUVs, replaces worn relays easily. 3-pack value, keep spares for emergencies on the road. Rugged design handles heat and vibration, lasts longer.	Not universal: Only fits specific GM SUVs, check compatibility first. No installation tools: Requires separate purchase for setup. Bulk pack: Might be more than needed for single replacement.

Perfect For:

This 3-pack headlight relay is perfect for GM SUV owners who want reliable lighting. It’s ideal for those with 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2004-2007 Buick Rainier, or 2003-2008 Isuzu Ascender. Keep spares handy to avoid headlight issues on the road.

Ready to Purchase?

View Price on Amazon (paid link)

4. KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem

KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem

H4 headlight wiring harness fixes dim or flickering lights in Toyota, Jeep, Subaru, Mitsubishi cars. Plug and play, no extra tools needed.

Switch from double ground to positive‑switched mode. Restore full headlight power. See brighter night driving instantly.

Pros	Cons
Fixes dim and flickering headlights, improving night visibility. Solves dual ground issues in Toyota pickups and Tacomas. Easy plug-and-play upgrade for LED headlights. Prevents overloading and overheating of headlight systems.	Not for all cars, check compatibility first. Requires basic wiring skills for installation. No instructions included, DIY knowledge needed.

Perfect For:

This is perfect for anyone with a Toyota Pickup, Tacoma, or any ride using 7×6 or 5×7 headlights who is tired of dim lights, flicker, or one beam not working. It’s ideal for drivers who want a simple fix that makes their headlights bright, steady, and reliable.

Ready to Purchase?

View Price on Amazon (paid link)

5. [ALL STAR TRUCK PARTS] 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set

Fix dim or flickering headlights with this 4-Headlight Relay Wiring Harness. It stops power issues and prevents overheating. Works with H4 plug headlights of all sizes.

This harness pulls power directly from the battery, bypassing the headlight switch. It still uses your stock switch to turn lights on and off.

Pros	Cons
Fixes dim, flickering, and malfunctioning headlights instantly. Prevents overheating plugs and overloaded switches. Direct battery power for brighter, reliable lights. Works with all H4 plug headlights, hassle-free.	Not a DIY fix, needs expert help. No instructions, hard to install. Only for H4 plugs, not universal.

Perfect For:

This 4-Headlight Relay Wiring Harness is perfect for anyone with dim, flickering, or malfunctioning headlights. If you’re upgrading to halogen bulbs or fixing H4 plug issues, this harness is your simple solution.

Ready to Purchase?

View Price on Amazon (paid link)

6. 15016745 4-Pin Headlight Relay Fuse Module for Chevy Trailblazer GMC, Buick,Saab 9-7x, Isuzu, Pontiac Grand Prix, Oldsmobile Bravada Replace# 15016745 13506836 (4-Pin Headlight Relay Fuse Module)

15016745 4-Pin Headlight Relay Fuse Module for Chevy Trailblazer GMC, Buick,Saab 9-7x, Isuzu, Pontiac Grand Prix, Oldsmobile Bravada Replace# 15016745 13506836 (4-Pin Headlight Relay Fuse Module)

The 4-Pin Headlight Relay Fuse Module is a direct replacement for your vehicle’s faulty relay. It fits Chevy, GMC, Buick, Saab, Isuzu, and Pontiac models. This part is easy to install with no tools needed.

Made of durable plastic and metal, it resists heat, oxidation, and electrical corrosion. Its high-quality construction ensures long-lasting performance and protects your headlight system.

This relay fixes headlight high beam faults and DRL issues, improving night driving safety. It comes with 24/7 customer support and a 1-year warranty for peace of mind.

Pros	Cons
Fixes headlight issues fast, ensuring safe night driving. Direct replacement, no tools needed, easy to install. Durable design resists heat, oxidation, and electrical damage. Compatible with multiple Chevy, GMC, Buick, and more models.	No manual included for setup Only one relay in the pack May not fit all trim levels

Perfect For:

This 4-Pin Headlight Relay Fuse Module is perfect for drivers who need a reliable fix for their headlight issues. It’s easy to install and works with many Chevy, GMC, Buick, Saab, Isuzu, Pontiac, and Oldsmobile models.

Ready to Purchase?

View Price on Amazon (paid link)

7. Painless Performance 30802 High Beam Headlight Relay Kit for 1988-1998 GM full-size trucks & SUVs

The Painless Performance 30802 Relay Kit boosts your truck’s light power with ease. It keeps all four headlights on when you switch to high beams. Your night drive becomes brighter and clearer.

It fits 1988–1998 GM full‑size trucks and SUVs with no stress. Some early Suburban models may need small tweaks. The kit is simple, solid, and built to last.

The relay is heavy duty. The hardware is complete. The build is Made in USA.

Pros	Cons
Brighten your drive with four lights on high beam. Custom fit for 1988-1998 GM trucks and SUVs. Heavy-duty relay ensures reliable performance. Easy install with complete kit included. Proudly made in the United States.	Modifications may be needed for some GM models. Not a plug-and-play kit for all vehicles. Limited compatibility beyond 1988-1998 GM trucks & SUVs.

Perfect For:

This Painless Performance 30802 High Beam Headlight Relay Kit is perfect for owners of 1988-1998 GM full-size trucks and SUVs who want brighter, safer nighttime driving. It’s easy to install and made in the USA.

Ready to Purchase?

View Price on Amazon (paid link)

8. Relay 15016745, 601-218 RY560 4-Pin Headlight Relay, Compatible for Chevrolet GMC Buick 15016745

Relay 15016745 is a 4-pin headlight relay designed for Chevrolet, GMC, and Buick vehicles. It ensures seamless integration and optimal performance.

This relay is a direct replacement for the #46 relay in your fuse box. It fixes high low beam and DRL functions, solving lighting issues easily.

Made with high-quality copper and durable plastic, it offers long-term reliability. It matches OEM part numbers, guaranteeing compatibility with your vehicle.

Pros	Cons
Perfect fit for Chevrolet, GMC, and Buick vehicles. Fixes lighting issues like high/low beams and DRL. Direct replacement for #46 relay in the fuse box. Built to last with high-quality copper and plastic.	May not fit all trim levels Needs care during install Not ideal for older wiring

Perfect For:

This relay is perfect for Chevrolet, GMC, and Buick owners who need a reliable fix for their headlight issues. It’s easy to install and works seamlessly with your vehicle’s system.

Ready to Purchase?

View Price on Amazon (paid link)

9. 15016745, 601-218 15016745 4-Pin Headlight Relay – Compatible with GM, Chevrolet, Buick, and GMC Models – High-Performance Multi-Purpose Relay for Headlight and Fan Clutch Repair

15016745, 601-218 15016745 4-Pin Headlight Relay - Compatible with GM, Chevrolet, Buick, and GMC Models - High-Performance Multi-Purpose Relay for Headlight and Fan Clutch Repair

The 4-Pin Headlight Relay is a high-performance solution for your vehicle. It works with GM, Chevrolet, Buick, and GMC models. This relay ensures reliable and durable performance.

It fixes issues with headlights and fan clutches. The relay is made from premium materials for long-lasting use. Installation is quick and easy.

This relay is compatible with many models. It replaces 15016745, 1R1944, RY560, and 13506836. Upgrade your vehicle’s electrical system today!

Pros	Cons
Fits many cars, works great for GM, Chevrolet, Buick, GMC. Fixes headlights and fans, keeps your car running smoothly. Strong and lasting, made with heat-proof, rust-free materials. Quick to install, saves time and effort.	May not fit all model years Needs care during install Not ideal for harsh weather use

Perfect For:

This relay is perfect for drivers who want quick, simple, and reliable fixes for headlight or fan clutch issues. It is ideal for anyone who needs a strong, long‑lasting part that fits many GM models with ease.

Ready to Purchase?

View Price on Amazon (paid link)

10. Vkinman H4 Relay Harness 9003 Headlight Relay Wiring Kit Ceramic Socket Plugs, Fit for 7×6 5×7 H6054 6054 Headlights Conversion Kit, Replacement for Toyota Tacoma 95-97

Vkinman H4 Relay Harness 9003 Headlight Relay Wiring Kit Ceramic Socket Plugs, Fit for 7x6 5x7 H6054 6054 Headlights Conversion Kit, Replacement for Toyota Tacoma 95-97

The Vkinman H4 Relay Harness gives your lights strong and steady power. It keeps your system safe with its waterproof build and tough ceramic plugs. It lasts long and works well in hard conditions.

Your lights shine 30%–50% brighter with this harness. You see more of the road and stay safer.

It stops dimming and heat issues fast. It keeps the current flow smooth and stable. It installs with a simple plug‑and‑play setup.

Pros	Cons
Waterproof build for strong, long use Brighter lights for clear road view Stops dimming and heat issues fast Steady power for smooth light output Easy plug-in setup for quick install	Not universal: May not fit all vehicle models, check compatibility first. Basic design: Lacks advanced features like LED indicators or smart controls. No instructions: Installation guide not included, might confuse beginners.

Perfect For:

This H4 relay harness is perfect for drivers who want brighter headlights and safer driving. It’s ideal for Toyota Tacoma 95-97 owners or anyone using 7×6, 5×7, or H6054 headlights.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Bright, reliable headlights make night driving safer. The right headlight relay fixes dim or flickering lights and boosts performance.

Choosing the best headlight relay is easy with this guide. We’ll help you find the perfect fit for your vehicle.

Here’s what to consider when buying:

Compatibility: Check if the relay fits your car’s make and model. Look for OEM part numbers to ensure a perfect match.
Type of Relay: Decide between universal or vehicle-specific relays. Universal relays work for many cars, while specific ones are tailored to your brand.
Installation: Choose plug-and-play options for easy setup. Some relays require tools or professional help.
Durability: Look for relays made with high-quality materials like ceramic sockets and heat-resistant wiring for long-lasting use.
Performance: Ensure the relay fixes issues like dim lights, flickering, or high/low beam problems.
Warranty: Pick relays with a warranty for peace of mind. Some offer 24/7 support or 1-year coverage.
Price: Compare prices to get the best value. Multi-packs often save money and provide spares.

Upgrade your headlights today. Drive safer and see clearer with the right relay!