Best Blower Motor Relays of 2026
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Blower motor relays are essential components in the heating and cooling systems of vehicles. These relays control the speed and operation of the blower motor, which is responsible for circulating the air through the HVAC system. Blower motor relays are designed to handle high electrical loads and can withstand the constant use and wear and tear of everyday driving. These relays are available in a variety of sizes and configurations to fit different makes and models of vehicles. Regular maintenance and replacement of faulty blower motor relays can help ensure optimal performance and comfort in your vehicle's HVAC system.
At a Glance: Our Top Picks
Top 10 Blower Motor Relays
Dorman HVAC Blower Motor Resistor Kit
The Dorman HVAC Blower Motor Resistor Kit is a direct replacement for select Toyota models. This complete kit includes a resistor and harness pigtail, making it essential for most repairs. By restoring functionality and performing like the original equipment, this kit ensures full HVAC operation. With the trustworthy quality of Dorman and the backing of a team of engineers and quality specialists in the USA, you can rely on this kit for long-lasting performance. To ensure the perfect fit for your vehicle, simply input your make, model, and trim level into the garage tool. Upgrade your HVAC system with the Dorman Blower Resistor Kit and enjoy efficient and reliable performance.
Motorcraft YH-1715 Blower Motor Resistor
The Motorcraft YH-1715 Resistor is designed specifically for your vehicle, ensuring a perfect fit and easy installation. With the model number YH-1715, you can quickly identify the right part for your needs. Made in China, this product meets manufacturing standards while offering an affordable option. Its compact package size (16.8 x 2.7 x 8.2 cm) makes it easy to store and handle. The Motorcraft YH-1715 Resistor helps regulate your blower motor's speed, improving your vehicle's ventilation system and keeping you comfortable on the road.
APPLI PARTS APFR-380 Fan Relay
The APPLI PARTS Fan Relay is designed for various HVAC applications, making it a versatile choice for your heating and cooling systems. Its 24V AC coil ensures reliable performance, allowing you to have consistent air flow in your home. This relay is universally compatible, meaning it can easily fit into any unit that meets the electrical specifications. Additionally, it serves as a direct replacement for several models, simplifying the replacement process. You can enjoy peace of mind knowing that this heavy-duty relay will efficiently manage your furnace blower and other ventilation needs.
Dorman 645-551 Blower Motor Harness
The Dorman 645-551 Blower Motor Harness is a reliable direct replacement for HVAC blower switch connectors on select Ford, Lincoln, and Mercury models. Made from quality materials, this durable part ensures long service life and trustworthy performance. To ensure proper fit, input your make, model, and trim level into the garage tool.
Replacement AC Blower Motor Resistor Kit
The AA Ignition Blower Motor Resistor Kit is a compatible replacement for Toyota Tacoma vehicles from 2005 to 2017. This kit includes a blower motor resistor and a new wire harness, making it easy to fix the air speed adjustment of your Tacoma's AC system. With an OEM fit and quality finish, this kit is a direct replacement for your factory HVAC fan blower motor resistor. Simply remove the old resistor assembly and install the new one to regain control over your AC fan speed. Plus, with a lifetime warranty, you can have peace of mind knowing that if the resistor ever fails, you can get a replacement hassle-free. Upgrade your Tacoma's AC system with the AA Ignition Blower Motor Resistor Kit today!
Cambridge DPDT 24V Power Relay
The Cambridge 24V DPDT Relay is designed to work seamlessly with standard 24-volt control systems, making it easy for you to connect it directly to your HVAC or PLC panels without needing extra adapters. Its mechanical contacts ensure reliable switching with low resistance and minimal leakage, which means your equipment like indicators and small motors will run smoothly and consistently. It also offers enhanced safety by isolating both conductors in double-pole versions, helping you lock out power securely when needed. Plus, this relay covers a wide range of control tasks, from driving actuators to managing changeover logic, giving you flexibility for various applications.
Motorcraft YH-1697 HVAC Blower Resistor
The Motorcraft Blower Resistor helps control the heating and cooling system in your vehicle, making sure the airflow adjusts smoothly to your settings. It’s designed for easy use, so you won’t have trouble managing your car’s climate. The resistor also resists rust and corrosion, which means it stays reliable even in tough conditions. Plus, installing this part is straightforward, saving you time and effort. With these benefits, the Motorcraft Blower Resistor offers a convenient and dependable way to keep your car’s HVAC system running efficiently.
Standard Motor Products - RU-730 Blower Motor Resistor
This blower motor resistor is a vehicle-specific auto part that belongs to the category of blower motor relays. It measures 8.0 cm in length, 8.1 cm in width, and 10.3 cm in height, with a package weight of 4.22 lbs. Made in the United States, it is a reliable and high-quality product to control the blower motor speed in your vehicle, ensuring you have a comfortable ride.
Appli Parts APFR-290 24V AC Fan Relay
The Appli Parts Fan Relay is designed for use in heating, air conditioning, refrigeration, and ventilation systems, making it a versatile choice for various HVAC needs. With its 24V AC coil and clearly defined terminals, you can easily connect it to your existing setup for reliable fan control. This relay supports multiple voltage ratings, ensuring it meets the electrical demands of your system. Its universal design means it can fit many units as long as the electrical specifications match, giving you flexibility and peace of mind when replacing or upgrading your fan relay.
SZRKRLA 2 Pack 24V HVAC Fan Relay
The SZRKRLA 24V Fan Relay is designed to work smoothly with many HVAC systems, including air conditioners, heaters, and fans. This means you can trust it to fit your equipment without hassle. Its sturdy metal build ensures the relay lasts longer and resists wear and rust, giving you peace of mind. Installing it is simple thanks to its compact size and clear wiring guide printed right on the relay, making it perfect for both professionals and DIY users. Plus, it efficiently controls your fan's operation using low-voltage signals, helping your system run safely and effectively.
Frequently Asked Questions (FAQs)
1. How do I know if my blower motor relay is bad?
You can identify a bad blower motor relay through several symptoms. One common sign is when the blower motor does not function at all. Another indication is a blown AC blower motor relay circuit fuse. Additionally, a melted relay is also an indicator of a faulty blower motor relay.
2. What does a blower motor relay do in a vehicle?
The blower motor relay plays a crucial role in the vehicle's HVAC system. It activates the blower motor, allowing cold air to be released into the cabin of the car. Without the blower motor relay, the blower motor would not function properly, and cold air would not be circulated.
3. What causes a blower motor relay to fail?
Blower motor relays can fail due to exposure to high current loads. Overheating can cause the interior components and plastic housing of the relay to melt and burn, potentially damaging the fuse box or panel. This can occur when the relay develops problems or is subjected to excessive electrical stress.
4. What happens when the blower motor resistor goes out?
When the blower motor resistor fails, it can result in the inability to get air to come out of the vents. The blower motor resistor controls the power to the blower motor. When it malfunctions, it can cut off all power to the motor, preventing air pressure from being produced.
5. Is there a fuse that controls the blower motor?
Yes, there are fuses that control the blower motor. Most vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. It is recommended to check these fuses if the blower motor is not working properly before assuming there is a problem with the motor itself.
6. What fuse controls the blower motor?
The fuse that controls the blower motor is typically a 20-, 25-, or 30-amp fuse located in the fuse panel under the dash. The specific rating of the fuse depends on the vehicle and the power requirements of the blower motor at full speed.
During our blower motor relay research, we found 24 blower motor relay products and shortlisted 10 quality products. We collected and analyzed 68,776 customer reviews through our big data system to write the blower motor relays list. We found that most customers choose blower motor relays with an average price of $19.33.
The blower motor relays are available for purchase. We have researched hundreds of brands and picked the top brands of blower motor relays, including Dorman, Motorcraft, AP APPLI PARTS, AA Ignition, Cambridge. The seller of top 1 product has received honest feedback from 384 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.