Best Car Horn Relays of 2025
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Car horn relays are essential components of a car's electrical system. They are responsible for controlling the power supply to the vehicle's horn, ensuring that it operates effectively and safely. By using a relay, the horn can be activated with a smaller, lower-powered switch, which reduces the risk of electrical damage and improves the overall efficiency of the system. Car horn relays are available in a range of sizes and specifications to suit different vehicles and applications, and they are typically easy to install and maintain. Whether you're looking to upgrade your car's horn or simply replace a faulty relay, there is a wide range of options available to suit your needs.
At a Glance: Our Top Picks
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Top 10 Car Horn Relays
AOLIHAN 80A 12V Horn Wiring Harness Relay Kit
The AOLIHAN Horn Wiring Harness Relay Kit is a universal fit product compatible with all automobiles, boats, and devices equipped with a 12-volt power source. It includes a relay, harness, threaded leather pipe, blade fuse, fuse box, tie rope, and instructions. The kit features an 80A waterproof relay with red copper movement and all copper pins, ensuring a good conductive effect and effectively protecting the circuit system. The fully transparent shell is sealed and waterproof, showcasing exquisite workmanship. The positive wire is 1.5m (60 in ") long and is protected by a threaded leather pipe, making it waterproof, dustproof, and insulated. If you have any doubts about the wiring, you can contact the professional technical team for assistance at any time.
DriSentri Air Horn Relay Wiring Harness Kit
The DriSentri Air Horn Relay Wiring Harness Kit is made of high quality ABS + copper materials, ensuring reliable and durable quality. With stable performance and high precision, it can be used with confidence. The kit is easy to install with perfect installation and high reliability, and no special tools are required. The horn relay harness is widely used with strong compatibility, suitable for all 12V cars, trucks, SUVs, etc. on the market. The package includes 1 x Wire and Relay.
Standard Motor Products HR159 Relay
The Standard Motor HR159 Relay is a compact and efficient component designed for car horn systems. With a height of just 1.02 inches, it fits easily into tight spaces, making installation a breeze. The product measures 2.92 inches in length and 1.11 inches in width, allowing for easy handling and placement in your vehicle. Originating from China, this relay is built to meet automotive standards, ensuring reliability and performance. Using this relay can enhance your car's horn functionality, providing you with peace of mind while driving.
Standard Motor Products HR159T Horn Relay
The Standard Motor Horn Relay is a high-quality car horn relay manufactured by Standard Motor Products. Made in the United States, this relay is designed to provide reliable and efficient performance. With a package height of 2.7 inches, length of 5.3 inches, and width of 3.78 inches, it is compact and easy to install. This horn relay is an essential component for your car's horn system, ensuring that it operates smoothly and effectively. It helps to regulate the flow of electricity to the horn, ensuring a strong and clear sound every time you need it. With the Standard Motor Horn Relay, you can enjoy a loud and powerful horn that enhances your safety on the road.
OER 12 Volt Horn Relay for 1963-1966 Chevy and GM Trucks
The OER 12 Volt Horn Relay is a replacement-style horn relay that is designed for various 1963-1965 GM models. It can solve the issue of malfunctioning horns and can replace OE part numbers 1115824, 12339243, and aftermarket part numbers D1709A, 16129, HR-4, HR125, HR-125, HR121, HR63, and HR19. Although this replacement part may differ cosmetically from the original, it will fit and function properly.
Standard Motor Products HR-114 Horn Relay
The Standard Motor Products HR-114 Horn Relay is a car horn relay made in China. The product has a package height of 2.563 inches, a package length of 10.125 inches, and a package width of 6.938 inches. This relay is useful for improving the reliability of a car's horn system.
Vixen Horns 4-PIN Horn Relay VXK7802
The Vixen Horns 4-PIN Horn Relay VXK7802 is a must-have for any car owner looking to upgrade their horn system. This relay is designed to handle up to 30 Ampere at 12 volts, making it perfect for temporary usage. Whether you need a louder horn for a short period of time or want to install a new horn altogether, this relay has got you covered. The 4-PIN pre-wired relay plug makes installation fast and hassle-free, ensuring a professional finish. Additionally, the universal momentary horn switch allows for easy activation of your horn at the touch of a button. With the Vixen Horns 4-PIN Horn Relay VXK7802, you can enjoy a louder and more powerful horn with minimal effort.
Standard Motor Products HR127 Relay
The Standard Motor Products HR127 Relay is a car horn relay that is made in China. With a package height of 0.53 inches, a package length of 4.19 inches, and a package width of 2.09 inches, this relay is compact and easy to install in your vehicle. The HR127 Relay is designed to control the power to your car horn, ensuring it functions properly when you need it. This reliable relay is a crucial component for the safety and convenience of your vehicle, allowing you to easily alert others on the road. With the Standard Motor Products HR127 Relay, you can rely on its quality and performance.
TOYOTA Genuine Horn Relay Assembly
This TOYOTA Genuine Horn Relay Assembly is manufactured by Toyota and vehicle specific, ensuring Toyota quality. It is an OEM product, not an after-market one, providing reliability and compatibility. This car horn relay is made specifically for Toyota vehicles, making it a perfect fit for your car.
Vixen Horns Car Horn Relay
The Vixen Horns Car Horn Relay is a 30A/12V pre-wired plug and socket designed for temporary usage of up to 10 minutes continuously. This easy-to-install relay helps you set up your car horn in a fast, trouble-free, and professional way, making it a great fit for any 12V vehicle.
Frequently Asked Questions (FAQs)
1. How do I know if my car horn relay is bad?
One common sign of a bad car horn relay is a burning smell coming from underneath the hood. If the relay burns out, it can produce a burning smell or even cause the relay to burn or melt. This indicates an issue with the relay and may require replacement.
2. Do you need a relay for a car horn?
While a relay is not necessary for a car horn to function through the steering wheel switch, it is designed to be part of the circuit for several reasons. The relay helps control the delivery of power to the horn and provides additional protection and control, preventing overheating of the switch contacts under the strain of the electrical load.
3. Where is the horn relay on a car?
The horn relay is typically located in the engine compartment junction or fuse box. To replace the horn relay, you will need basic tools and should confirm its specific location before proceeding.
4. What happens if I remove the horn relay?
Removing the horn relay will typically disable the horn. In some cases, a malfunctioning relay may cause the horn to jam in the on position. However, it's important to refer to the wiring schematic on the fuse box lid or your owner's manual to identify the correct relay and ensure the proper functioning of your horn system.
5. What can a bad horn relay cause?
A bad horn relay can prevent the horn from working properly. When the relay malfunctions, it can disrupt the delivery of power to the horn, resulting in the horn not honking when activated. If you hear a clicking sound from the relay when trying to honk the horn, it may indicate a faulty relay.
6. How much does it cost to fix a horn relay?
The cost of fixing a horn relay can vary. A new horn relay typically costs between $10 and $50. The labor cost for replacement is usually between $40 and $80, and the process generally takes less than an hour. Therefore, the total cost can range from $50 to $130.
7. What is the benefit of a horn relay?
Using a horn relay in the horn system offers benefits such as current protection and control. The relay acts as a barrier of insulation between the high-current horn circuit and the horn switch, preventing the switch contacts from overheating under the electrical load. This helps ensure the proper functioning and longevity of the horn system.
During our car horn relay research, we found 24 car horn relay products and shortlisted 10 quality products. We collected and analyzed 7,046 customer reviews through our big data system to write the car horn relays list. We found that most customers choose car horn relays with an average price of $16.80.
The car horn relays are available for purchase. We have researched hundreds of brands and picked the top brands of car horn relays, including AOLIHAN, DriSentri, Standard Motor Products, ORE, Vixen Horns. The seller of top 1 product has received honest feedback from 88 consumers with an average rating of 4.9.
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.