Best Car Engine Relays of 2026

The HELLA 12V Relay is designed to keep your vehicle’s electrical system running smoothly by reliably switching high-current circuits. This means you can count on it to handle demanding electrical tasks without failure. Its sturdy design ensures it performs well even in harsh weather or temperature extremes, so it won’t let you down in tough conditions. If you have sensitive electronics in your car, this relay helps reduce unwanted electrical noise that can interfere with their operation. Plus, it’s easy to install thanks to standardized connectors, making replacement or setup hassle-free for you.

The Samsung Relay DA35-00099G is a genuine replacement part designed to ensure compatibility and reliable performance with various Samsung models. As an authorized OEM component, it guarantees quality and fit, helping you avoid issues that may arise from using generic replacements. This relay is part of the car engine relays category, meaning it plays a key role in your vehicle’s electrical system, ensuring smooth operation. Using this relay can provide peace of mind, knowing you’re installing a trusted Samsung part that meets original specifications.

The FalconSupply Trim Relay Kit is a reliable replacement designed to fit a wide range of outboard motors, including Mercury, Mariner, and Force models from 20 to 300 HP, plus Johnson Evinrude OMC Sterndrive units. This means you can easily find a perfect match for your motor without worrying about compatibility. The kit features strong 12V relays that handle high electrical demands, ensuring smooth and consistent trim and tilt operation, which helps your motor respond quickly and run efficiently. Built with durable, marine-grade materials, these relays resist moisture, corrosion, and vibration, giving you long-lasting performance even in tough marine environments. Installation is hassle-free with a plug-and-play design that fits your existing wiring, so you won’t need to cut or modify anything.

The HELLA 4-Pin Relay is designed to provide steady and reliable switching for high-current circuits, ensuring your vehicle's electrical system operates smoothly. Its durable design means it can handle tough conditions, so you don't have to worry about performance issues in extreme temperatures. This relay also helps reduce electrical noise, protecting sensitive parts of your vehicle from interference. Installation is straightforward thanks to standardized connectors, making it easy for you to replace or set up without hassle. Overall, this relay offers dependable operation, durability, noise reduction, and easy installation for your vehicle’s electrical needs.

The Four Seasons Relay is designed to enhance the performance of your car's engine. With a compact size measuring just 2.63 inches in length, 2.44 inches in width, and 1.75 inches in height, it fits easily into tight spaces, making installation hassle-free. Weighing only 0.21 pounds, it adds minimal weight to your vehicle, ensuring that your engine operates efficiently without unnecessary burden. Its lightweight design also makes it easier to handle during installation or replacement, giving you convenience and confidence as you work on your vehicle.

The Dometic Relay 93849 is a compact and lightweight car engine relay designed to fit easily in your vehicle’s system. Measuring just 5.5 inches long, 4.12 inches wide, and 1 inch high, it offers a convenient size that won’t take up much space. Weighing only 0.04 pounds, it’s light enough to handle and install without hassle. This single relay unit is built to support reliable electrical connections in your car’s engine, helping to ensure smooth performance and efficient operation. With the Dometic Relay 93849, you get a practical and simple solution for your vehicle’s relay needs.

The SMP RY8 Relay is a compact car engine relay made by Standard Motor Products. Its small size, measuring just over 2.5 inches in length and about 2.4 inches in width, makes it easy for you to install in tight engine spaces. The relay’s height of around 2.36 inches ensures it won’t take up much room, helping you maintain a neat setup. Made in China, this relay offers a reliable option for your vehicle’s electrical system, giving you the convenience of a well-sized and trustworthy part to keep your engine running smoothly.

The Four Seasons 35767 Relay is a standard relay designed for car engines. With its compact size and lightweight package, it is easy to install and doesn't add unnecessary weight to your vehicle. The relay, with part number 35767, is made by the trusted brand Four Seasons, known for their high-quality automotive products. This relay is an essential component for your car's electrical system, providing reliable power distribution to various engine functions. Its small package dimensions make it compatible with most car models, ensuring a seamless fit. Whether you need to replace a faulty relay or want to upgrade your car's performance, the Four Seasons 35767 Relay is a reliable choice.

The MARS Potential Relay Kit is designed to replace many original equipment manufacturer (OEM) relays, making it a versatile choice for your refrigeration or automotive needs. This relay works in any position, so you don’t have to worry about how it’s installed, offering flexibility and ease of use. Each kit includes a QC-6 adapter, allowing you to easily switch from screw-on to push-on connections, which can save you time and effort during installation. With this kit, you get a reliable, adaptable relay that simplifies maintenance and replacement tasks.

The Four Seasons Relay 35746 is an essential auto part designed to enhance your vehicle's engine performance. This product comes in a compact size, making it easy to install in various vehicles. Manufactured in China, it ensures quality and reliability for drivers. With its specific dimensions of 8.89 cm in length, 7.111 cm in width, and 5.08 cm in height, it fits well in tight spaces under the hood. Using this relay can help ensure that your engine operates smoothly, providing you with peace of mind on the road.