Best Car Headlamp Relays of 2025
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Car headlamp relays are an essential component of a vehicle's electrical system. They are responsible for controlling the power supply to the headlamps, ensuring that they turn on and off at the appropriate times. Headlamp relays are especially important for older vehicles, as they can help prevent electrical problems and extend the life of the headlamp bulbs. Additionally, installing a relay can help improve the brightness of the headlamps and reduce the strain on the vehicle's electrical system. Overall, car headlamp relays are a simple but vital component that can improve the safety and longevity of a vehicle's lighting system.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 6 Car Headlamp Relays
Standard Motor Products RY-687 Headlamp Relay
Dorman 601-218 Headlight And Cooling Fan Relay
The Dorman 601-218 Headlight and Cooling Fan Relay is a direct replacement for a relay that has failed due to vibration, moisture infiltration, or collision damage. This relay is designed to restore the connection between the headlight control switch and the headlights, ensuring that your headlights are functioning properly. Quality tested and validated for performance and service life, this relay is a reliable solution backed by a team of engineers and product designers in the United States. Additionally, the garage tool helps ensure a perfect fit for your specific make, model, and trim level.
Relay Headlights 12 Volt for Beetle & Bus
The Relay Headlights 12 Volt is a car headlamp relay designed for Volkswagen Type 1 [ Beetle / Bug ] 1967-79, Karmann Ghia 1967-74, Type 2 [ Transporter / Bus ] 1967-79 and Type 3 [ Squareback, Fastback ] 1967-73. The model number is 98-9437-B.
Denso 567-0003 4-Prong Headlight Relay for Lexus/Toyota with Grey Color Code
URO Parts Headlight Relay
The URO Parts 4433801 Headlight Relay is a high-quality replacement part for failed factory headlight relays. Its direct-fit OE reproduction design ensures easy plug-and-play installation, instantly restoring proper lighting performance. Made of high-quality materials, this headlamp relay is a reliable choice for car owners.
General Motors Car Headlamp Relay
This General Motors Car Headlamp Relay is a genuine part that is specifically designed to fit your vehicle. The part number is 15000046 and it is manufactured to meet specifications for fit, form, and function. This lamp is an essential component of your car headlight system.
Frequently Asked Questions (FAQs)
1. How do I know if my headlight relay is bad?
The most common sign of a bad headlight relay is headlights that don't work. A headlight relay will typically fail in the open position, preventing voltage from reaching the headlights. If the low beam relay fails, the low beams won't work.
2. What relay controls the headlights?
Used in “flip-up” lights, which fold out of the body of the vehicle, headlight closure relays are essential for headlight operation. This relay is located in your main fuse box or panel.
3. What is the purpose of a headlight relay?
When you turn on your headlights, that switch activates a relay. That relay, in turn, actually provides the electrical connection between your headlight bulbs and the battery. Fuses are also involved in order to provide a sacrificial failure point to protect the rest of the wiring.
During our car headlamp relay research, we found 7 car headlamp relay products and shortlisted 6 quality products. We collected and analyzed 6,772 customer reviews through our big data system to write the car headlamp relays list. We found that most customers choose car headlamp relays with an average price of $28.36.
The car headlamp relays are available for purchase. We have researched hundreds of brands and picked the top brands of car headlamp relays, including Standard Motor Products, Dorman, Empi, Denso, URO Parts. The seller of top 1 product has received honest feedback from 386 consumers with an average rating of 4.7.
Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.