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OEX 12V Low Note Horn - ACX5120
OEX

OEX 12V Low Note Horn - ACX5120

$43
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Hella Horn 24V High Tone 92Mm - 6020

Hella Horn 24V High Tone 92Mm - 6020

$58
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Narva Disc Horn 24V 118dB - 72527

Narva Disc Horn 24V 118dB - 72527

$72
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Narva Air Horn 12V 117dB - 72530

Narva Air Horn 12V 117dB - 72530

$393
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Hella Horn Set Super Tone 24V - 603724V

Hella Horn Set Super Tone 24V - 603724V

$464
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Hella Disc Horn 24V 115Db - 6002

Hella Disc Horn 24V 115Db - 6002

$58
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Narva Disc Horn 12V 105dB - 72515BL

Narva Disc Horn 12V 105dB - 72515BL

$138
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OEX Disc Horn 24V 110dB - ACX5101
OEX

OEX Disc Horn 24V 110dB - ACX5101

$89
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OEX Disc Horn 24V 115dB - ACX5118
OEX

OEX Disc Horn 24V 115dB - ACX5118

$60
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OEX Air Horn 12V 115dB - ACX5108
OEX

OEX Air Horn 12V 115dB - ACX5108

$118
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Hella Horn Set Super Tone 12V - 6037

Hella Horn Set Super Tone 12V - 6037

$335
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Hella Fan Fare Horn 12V 112Db - 6005

Hella Fan Fare Horn 12V 112Db - 6005

$73
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Narva Fan Fare Horn 12V 110dB - 72501

Narva Fan Fare Horn 12V 110dB - 72501

$249
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Narva Disc Horn 12V 118dB - 72517

Narva Disc Horn 12V 118dB - 72517

$60
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Narva Air Horn 24V 117dB - 72532

Narva Air Horn 24V 117dB - 72532

$184
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OEX Trumpet Horn 24V 115dB - ACX5107
OEX

OEX Trumpet Horn 24V 115dB - ACX5107

$653
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OEX Disc Horn 12V 100dB - ACX5119
OEX

OEX Disc Horn 12V 100dB - ACX5119

$30
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Hella Disc Horn 12V 115dB - 6001

Hella Disc Horn 12V 115dB - 6001

$54
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Narva Replacement 12V Compressor - 72531

Narva Replacement 12V Compressor - 72531

$113
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OEX 12V High Note Horn - ACX5121
OEX

OEX 12V High Note Horn - ACX5121

$43
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Narva 12V Compact Electropneumatic Truck Horn - 72537BL

Narva 12V Compact Electropneumatic Truck Horn - 72537BL

$269
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Narva Air Horn Triple 12V - 72536

Narva Air Horn Triple 12V - 72536

$229
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Hella Air Horn 12V 117dB - 6014

Hella Air Horn 12V 117dB - 6014

$91
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Hella Horn Set Super Tone High/Low 12V - 6036

Hella Horn Set Super Tone High/Low 12V - 6036

$322
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OEX Disc Horn 12V 110dB - ACX5117
OEX

OEX Disc Horn 12V 110dB - ACX5117

$44
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OEX 12V High/Low Horn - ACX5122
OEX

OEX 12V High/Low Horn - ACX5122

$75
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Hella Air Horn 24V 117dB - 6027

Hella Air Horn 24V 117dB - 6027

$94
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Hella Disc Horn 12V High Tone - 6003

Hella Disc Horn 12V High Tone - 6003

$56
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Narva Disc Horn 12V 118dB - 72517BL

Narva Disc Horn 12V 118dB - 72517BL

$60
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Narva Disc Horn 24V 105dB - 72525

Narva Disc Horn 24V 105dB - 72525

$72
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Narva Disc Horn 12V 112dB - 72510

Narva Disc Horn 12V 112dB - 72510

$271
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Narva Disc Horn 12V 105Db - 72515

Narva Disc Horn 12V 105Db - 72515

$139
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Narva Disc Horn 24V 105dB - 72525BL

Narva Disc Horn 24V 105dB - 72525BL

$166
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Narva Disc Horn 24V 118dB - 72527BL

Narva Disc Horn 24V 118dB - 72527BL

$72
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Narva Disc Horn High/Low Tone Twin Pack 24V 112dB - 72520

Narva Disc Horn High/Low Tone Twin Pack 24V 112dB - 72520

$135
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Oceans Acoustic Horn & Can - 10033

Oceans Acoustic Horn & Can - 10033

$36
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Showing 1 - 36 of 36 products

Repco carry a great range of Car and Truck Horns

Truck and car horns are essential components to your vehicle, designed to alert other road users and pedestrians of your vehicle's presence. While their primary purpose is functional, vehicle horns can also reflect a personality, especially in custom or aftermarket setups such a wanting a train horn for your car. Repco stock quality horns from Narva, OEX and our own Repco brand to give you the perfect choice for your vehicle.

How Do Horns Work?

Vehicle horns operate using a simple yet effective mechanism. Most modern horns are powered by electricity. When the driver presses the horn button, an electric current flows through a solenoid, causing a diaphragm to vibrate rapidly. This vibration produces the sound that is heard externally. The pitch and tone of the horn depend on the size and shape of the diaphragm, as well as the design of the horn itself.

Air horns, commonly found on trucks and larger vehicles, function slightly differently. These horns use compressed air to produce a loud, distinct sound. They are often more powerful than standard electric horns, making them ideal for larger vehicles that require greater auditory presence on the road.

Types of Horns

Vehicle horns come in a variety of types, each suited to different needs and preferences. The most common type is the electric horn, which is standard in most passenger cars. These horns are compact, reliable, and produce a consistent sound.

Air horns, on the other hand, are typically found on trucks, buses, and emergency vehicles. They are louder and more attention-grabbing, making them suitable for situations where a stronger warning is necessary. Custom truck and train air horns are also popular among enthusiasts, offering unique sounds or melodies that add a personal touch to a vehicle.

Truck horns come in both 12v and 24v variants to suit the vehicle and the application.

Legal Considerations

While horns are a safety feature, their use is regulated by law in most countries, including Australia. Drivers are generally required to use their horns only when necessary to warn others of danger. Excessive or inappropriate use, such as honking in non-emergency situations, can result in fines or penalties. Additionally, aftermarket horns that exceed legal noise limits may be prohibited.

It is important for drivers to familiarise themselves with local regulations regarding horn use and noise levels. Staying within legal boundaries ensures both safety and compliance on the road.

Maintenance and Replacement

Like any other vehicle component, horns require occasional maintenance to ensure they function properly. Over time, dirt, moisture, and general wear can affect their performance. Regular cleaning and inspection can help prevent issues such as weak or distorted sounds.

If a horn stops working, it is often due to a blown fuse, faulty wiring, or a damaged diaphragm. Replacing a horn is usually straightforward and when replacing a horn, you should ensure the new unit complies with local regulations.

Choosing the Right Car or Truck Horn

Selecting the right horn depends on the vehicle's purpose and your preferences. For everyday passenger cars, a standard electric horn is usually sufficient. Truck drivers, however, may prefer truck air horns for their louder and more commanding sound. Custom air horns can be a fun option for those who want to add a unique touch to their vehicle, but they should always be installed responsibly.

Ultimately, the ideal horn is one that balances functionality, legal compliance, and personal preference. By choosing wisely, you can ensure their vehicle remains safe and roadworthy while reflecting your individual style.