Best Engine Radiator Cooling Fan Motor Relays of 2026

The X AUTOHAUX Dual Electric Fan Relay Kit is a versatile and convenient solution for your cooling fan needs. This kit is compatible with 10", 12", 14", and 16" fans, including dual fans. It is recommended to use a separate relay wiring kit for each fan to ensure optimal performance. The installation of the electric cooling fan thermostat kit is straightforward, with color-coded wires that can be easily connected according to the included wiring diagram. With its waterproof design, this fan relay kit ensures durability and reliability. The kit features a thermostatic switch that turns the cooling fans on when the engine reaches a preset temperature or when the A/C is turned on. The package includes everything you need for installation, including wiring harnesses, relays, temperature switch, probe, adapter, fuse holders, ring terminals, and fan pigtail connectors. Please refer to the relevant operation video for any installation doubts. If you intend to mount high-profile fans, it is recommended to crimp or solder bigger wires to ensure sufficient power supply. Upgrade your cooling system with the X AUTOHAUX Fan Relay Kit for efficient and reliable performance.

This electric fan wiring kit is an easy-to-install kit that includes everything you need to wire your electric fans. It comes with a temperature switch that turns on the fan at approximately 185 degrees and off at 175 degrees. The kit includes a 40A relay, wiring harness, thermostat switch, 3/8 inch to 1/2 inch adapter, inline fuse holder, 20 amp fuse, 1 spade connector for the temp sensor, 4 ring terminals, and 2 wire connectors. It is a direct replacement part that fits 10, 12, 14, and 16 inch cooling fans.

ZOZOMOTORS Dual Electric Fan Relay Kit includes an easy to follow wiring diagram that simplifies wiring dual electric fans, direct replacement part fits 10, 12, 14, and 16 inch cooling fans, temperature switch turns on fan approximately at 185 Degrees and Off at 175 Degrees, comes with everything you need, includes 40A relay, wiring harness, thermostat switch, 3/8 inch to 1/2 inch adapter, inline fuse holder, 2 20amp fuse, 1 spade connector for the temp sensor, 8 ring terminals, and 4 wire connectors, and thermostat supplied with this kit is OE style to mount in the cylinder head of the engine or any water jacket if needed.

The LCWRGS Cooling Fan Relay Kit is designed to keep your engine running at the right temperature by turning the electric fan on at 200 degrees and off at 185 degrees. This feature helps prevent your engine from overheating or running too cold, ensuring better performance. It works with any 12-volt system, so you can use it in a wide range of vehicles without hassle. The kit fits many engine types, making it versatile and easy to install. Plus, it includes everything you need—like a 50 AMP relay, thermostat, circuit breaker, wiring harness, and mounting hardware—so you have all the parts ready for a smooth setup.

The FASTSTORM Electric Fan Relay offers reliable cooling by supporting fans from 10" to 16", helping you prevent your engine from overheating during any drive. It features a thermostat switch that turns the fan on at 185°F and off at 175°F, so your engine stays at the right temperature without wasting energy. Installation is simple with a complete wiring kit and clear instructions, making it easy for you to set up a single or dual fan system. Plus, the waterproof fuse holders protect the components from harsh weather, ensuring your cooling system works dependably whenever you need it.

The ACDelco Multi-Purpose Relay is a high-quality replacement designed to keep your vehicle running smoothly. It offers professional-grade performance, ensuring you get reliable operation every time you need it. This relay is made to fit perfectly and work just like the original part, so installation is hassle-free. With this relay, you can expect the dependable function that ACDelco is known for, giving you peace of mind that your engine radiator cooling fan motor will perform efficiently. If you want a trustworthy and easy-to-install relay, this product is a solid choice.

The RYANSTAR Thermostat Relay Kit helps you control your vehicle’s cooling fan with precision. It features an adjustable thermostat, allowing you to set the temperature at which the fan turns on and off, giving you control over your engine’s cooling. The stainless steel probe accurately senses temperature, whether placed in the radiator fins or tubes, ensuring your fan responds correctly to heat changes. You’ll find the temperature dial easy to use, marked in both Celsius and Fahrenheit for quick adjustments. Plus, the long 30-inch wire lets you install the kit conveniently in various setups to improve your cooling system effectively.

The 501 Parts Polaris Cooling Relay is designed as a direct replacement for specific Polaris models, making it easy for you to find the right fit without guesswork. Its sealed and waterproof design ensures that your vehicle's cooling system stays protected even in the muddiest and wettest trail conditions, so you can ride with confidence. Installation is simple with the plug-and-play setup, saving you time and hassle so you can get back to enjoying your outdoor adventures quickly. This relay fits a wide range of Polaris vehicles, including Ranger, RZR, General, Sportsman, and more, offering you versatile compatibility.

The GELUOXI Cooling Fan Relay is designed to replace your vehicle’s engine cooling fan relay, ensuring your engine stays at the right temperature. This kit fits several models, including Chrysler Pacifica, Voyager, Jeep Liberty, and Dodge Grand Caravan from the early 2000s, making it a versatile choice. If you drive one of these vehicles, this relay helps maintain proper engine cooling, which can prevent overheating and keep your car running smoothly. Its compatibility with various engine sizes means you get a reliable replacement tailored to your specific vehicle, giving you peace of mind on the road.

The Ronybuy Fan Relay Kit is designed to fit a wide range of cooling fans from 10 to 16 inches, making it compatible with many engine types. This means you can easily use it for your vehicle's radiator fan without worrying about size issues. Installing the kit is straightforward; you just need to follow the included wiring diagram, which clearly shows where to connect each wire, helping you avoid confusion. The kit operates on 12 volts with a 40 AMP relay, ensuring it can handle the electrical load needed to run your fan efficiently. Plus, the thermostat switch automatically turns the fan on at 185°F and off at 175°F, helping keep your engine at the right temperature. The relay is also waterproof, so it works well even in harsh weather conditions.