Best Fog Light Relays of 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Fog light relays are essential components for any vehicle that has fog lights. These relays are designed to control the power supply to the fog lights, ensuring that they turn on and off smoothly and reliably. Fog light relays are especially important in adverse weather conditions, such as fog, rain or snow, when visibility is poor and drivers need all the help they can get to see the road ahead. They are easy to install and can be used with a variety of different fog light systems, making them a popular choice among car enthusiasts and professionals alike.
At a Glance: Our Top Picks
Top 10 Fog Light Relays
Genuine Toyota Fog Light Relay (PT297-89016)
This fog light relay is a genuine Toyota part with OEM quality assurance. It is vehicle specific, ensuring perfect fit and function for your Toyota. The manufacturer warranty guarantees its quality and reliability.
Subaru Genuine Fog Light Relay - Forester Impreza WRX
Subaru Fog Light Relay is compatible with various Subaru models including BRZ, Crosstrek, Forester, Impreza, and WRX. This relay ensures proper functioning of fog lights on your vehicle, enhancing visibility in low-light conditions. With this relay, you can enjoy a safer driving experience by illuminating the road ahead in foggy or misty weather. It is a reliable component that contributes to your overall driving safety and convenience.
Fog Light Relay by Sawyer Auto
The Sawyer Fog Light Relay is engineered for a precise fit in various Chrysler, Dodge, Jeep, Mitsubishi, Plymouth, and Ram models from 1994 to 2023. It is designed with modern tooling, ensuring that you receive a product of superior quality and reliability. This relay serves as a direct replacement, allowing for easy installation just like the original unit. Additionally, it is made from durable materials that surpass OEM specifications, providing you with a long-lasting component. Each relay has undergone thorough testing to guarantee optimal performance, ensuring that your fog lights operate smoothly when you need them most.
YLT AUTO Universal Fog Lights
The YLT AUTO Fog Lights are designed to enhance your vehicle's visibility during challenging conditions like night driving, heavy rain, or fog. These universal 12V lights are easy to install, allowing you to simply plug them in without complicated instructions. Their advanced illumination technology provides a bright and wide beam, helping you see both sides of the road clearly. With their durable construction, these lights can withstand harsh environments, ensuring safety and reliability on your journeys.
Mechanics Choice Fog Light Relay for Chrysler, Dodge, Jeep
The Mechanics Choice Fog Light Relay is engineered for various models including Chrysler, Dodge, Jeep, and more. It ensures a seamless fit, making installation easy and hassle-free, just like the original part. Designed with modern tooling, this relay offers exceptional quality and reliability, so you can trust it to perform well. Additionally, it is built with durable materials that surpass OEM standards, enhancing longevity and performance. With rigorous testing for reliability, you can count on this relay to keep your fog lights functioning optimally.
Fog Light Relay for Chrysler, Dodge, Jeep, Mitsubishi, Plymouth, Ram
The Sawyer Auto Fog Light Relay is designed for various models from 1994 to 2023, ensuring a perfect fit for your vehicle. It meets original equipment standards, providing peace of mind with its quality and reliability. You’ll appreciate the durable materials used in its construction, which surpass those of the OEM parts. Installation is straightforward, allowing you to replace your old relay with ease, just like the factory unit. Additionally, each relay has been thoroughly tested to guarantee optimal performance on the road.
Saab 9000 Fog Light Relay
The Saab Fog Light Relay is designed specifically for the Saab 9000 models from 1985 to 1988. It plays a crucial role in controlling the front fog lights, ensuring they function correctly when you need extra visibility in poor weather conditions. This relay also features a dim-dip function, which can enhance your driving experience by providing softer lighting that is easier on the eyes during nighttime driving. By using this relay, you can enjoy improved safety and clarity on the road, making your journeys more secure and comfortable.
Dodge Mini Ram Fog Light Relay - PartCatalog
The Dodge Fog Light Relay from PartCatalog is an essential replacement part for your vehicle. It includes one high-quality relay that matches the original equipment specifications, ensuring reliable performance. You’ll appreciate the straightforward installation process, designed specifically for your vehicle’s make and model, eliminating any hassle. This relay guarantees perfect compatibility, so you can easily confirm it meets your vehicle's requirements. Enjoy optimal performance and a seamless replacement experience, bringing back the functionality of your fog lights effortlessly.
WM Auto Part Fog Lamp Relay 9008087010
The WM Auto Part Fog Relay is designed to enhance your vehicle's fog lamp performance. It efficiently dissipates heat, helping to maintain cooler temperatures, which can extend the life of the relay. Additionally, it offers reliable short-circuit protection, safeguarding your electrical system. The mounting and connectors are identical to original equipment, ensuring a seamless fit. This relay is crafted for precise alignment and function, making installation straightforward and hassle-free, allowing you to get back on the road quickly with confidence in your fog lights.
WM AutoPart Fog Lamp Relay 1580201
WM AutoPart Relay 1580201 rapidly cools down, offers short-circuit protection, and has connectors identical to OE. With OE form, fit, and function, it ensures precise fit and reliable operation. This relay's design helps in maintaining cooler operating temperatures, protecting against short circuits, and ensuring easy installation. The identical connectors to OE make replacement hassle-free, while the precise fit guarantees reliable performance. Overall, the WM AutoPart Relay is a dependable choice for your fog lights.
Frequently Asked Questions (FAQs)
1. Is a relay necessary for fog lights?
Yes, a relay is necessary for fog lights, especially when they have a 30-60A draw. The relay acts as a switch to control the power supply to the fog lights.
2. What does a relay do for fog lights?
A fog light relay is responsible for controlling the power supply to the fog lights. It can be controlled manually by the driver or automatically by the computer. If the relay fails, it will result in the fog lights becoming inoperable.
3. Why are fog lamps starting to disappear?
Fog lamps are starting to disappear because many drivers do not see the need for them. According to the National Highway Traffic Safety Administration (NHTSA), fog lamps are considered supplemental and not a requirement for driving in low visibility conditions.
4. Can you wire LED fog lights without a relay?
While it is possible to wire LED fog lights without a relay, it is not recommended. It is best to use a relay to ensure that the switches, fuses, and wiring are properly sized for the amperage of the LED lights.
5. Why don't fog lights work with high beams?
Fog lights do not work with high beams because high beams reduce visibility in fog due to the reflection of bright light. High beams are effective in different conditions, and having fog lights on simultaneously is unnecessary.
6. Why do fog lights turn off with high beams?
Fog lights turn off with high beams because high beams reduce visibility in fog due to the reflection of bright light. Using high beams effectively eliminates the need for fog lights in such conditions.
7. Why are car manufacturers removing fog lights?
Some car manufacturers are removing fog lights because advancements in headlight technology have made them less necessary. While fog lights are still considered important by many drivers, automakers are choosing to remove them from certain models as they are seen as supplemental rather than essential.
8. Why won't my fog lights stay on?
If your fog lights won't stay on, it could be due to a blown fuse. A power surge can cause the fuse to blow, resulting in the fog lights becoming completely disabled.
During our fog light relay research, we found 24 fog light relay products and shortlisted 10 quality products. We collected and analyzed 2,357 customer reviews through our big data system to write the fog light relays list. We found that most customers choose fog light relays with an average price of $30.08.
The fog light relays are available for purchase. We have researched hundreds of brands and picked the top brands of fog light relays, including Toyota, Subaru, Sawyer Auto, YLT AUTO, Saab. The seller of top 1 product has received honest feedback from 385 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.