Top 10 Best Truck Air Horns

Truck drivers love the sound of truck air horns, they use them to warn other road users they are coming but also to say hi to other truckers with a quick blast on the horn, in this article we take a look at air horns for trucks to see the different types of air horns plus take a look at the top 10 bestselling air horns for trucks in the UK.

What Are Truck Air Horns?

An air horn is is a warning device that uses compressed air to create a loud noise, a truck air horn can give various tonal sounds because they have trumpets in various lengths and sizes that create different sounds and pitches.

Many truck drivers will have multiple air horns on their trucks to make their air horns sound different and personal to them.

The sound is created by a compressor pushing air through the trumpet, similarly to a musician playing a trumpet instrument.

truck air horns and compressors

Wiring Air Horns on a Truck

The air horns on a truck can be wired to sound with the trucks regular horn or can be wired to a seperate switch or button.

Wiring air horns separately can be advantageous because air horns may not be legal in certain areas because of the amount of decibels they produce.

Most truck drivers will fit the trumpet part of the air horns to the roof of the truck cab or onto a roof bar, an air tube will need to be fed to the compressor that provides the air to the horn, it is best practice to locate the compressor as close to the trumpet as possible, some modern truck air horns have the compressor built in to the trumpet section of the horn.

The compressor will be powered electrically by the trucks electrics, this will require wiring it into the horn circuit or wiring it separately to a switch, always read the installation guide that comes with your air horns as installation may vary with different makes of air horns.

Top 10 Best Selling Truck Air Horns in the UK

Bestseller No. 1
flexzon HQ Truck Air Horns For TGV Train Airhorn Twin Chrome Trumpets 24 Volt E - Mark
  • 12V/24V Super Loud 139db Trumpet Air Horn Truck Van Bus Lorry Boat Metal 63cm
Bestseller No. 2
Akozon Air Horn, 150dB 12V-24V Airhorn 4 Trumpet Chrome for Trains Trucks Cars Van Pickups Boats
  • 12-24V universal design - Equipped with 12V/24V solenoid valve, suitable for 12/24V vehicles, which can meet the needs of your vehicle. It can be widely used in trucks, vans, trains, ships,...
SaleBestseller No. 3
flexzon 12V 24V Double Twin Air Horn Chrome Plated Trumpet Truck Lorry Bus Boat NEW
  • 12V 24V Double Dual Twin Air Horn Chrome Plated Trumpet Truck Lorry Bus Boat NEW
Bestseller No. 4
flexzon 12V 24V Triple Air Horn Chrome Plated Metal Trumpet Truck Lorry Bus Boat very loud NEW
  • 12V 24V Triple Air Horn Chrome Plated Metal Trumpet Truck Lorry Bus Boat NEW
Bestseller No. 5
Bestseller No. 6
SUNDELY® 24 Volt Chrome Plated Zinc Alloy Triple Trumpet Air Horn for Truck Boat Train Vehicle
  • 24 Volt Chrome Plated Zinc Alloy Triple Trumpet Air Horn for Truck Boat Train Vehicle
Bestseller No. 7
Powerful 24V quadruple chrome air horn trumpet truck HDV tractor boat
  • Quadruple Air horn, chrome finished with 4 trumpets, made of zinc and alloy
Bestseller No. 8
SUNDELY® 24 Volt Chrome Plated Zinc Alloy Quadruple Trumpet Air Horn for Boat Truck Train Car...
  • 24V Chrome Plated Zinc Alloy Quadruple Trumpet Air Horn for Boat Truck Train Car Vehicle
Bestseller No. 9
car horn 1pc Auto Dual 2-Trumpet 12-24V 600DB Loud Air Horn Chrome Plated Zinc For Car Van Boat...
  • Super Loud-The air horn sends out a loud and powerful warning. The super loud volume attracts everyone’s attention and should not be ignored
Bestseller No. 10
GAMPRO 24V 150db Air Horn, 45cm Chrome Zinc Single Trumpet Truck Air Horn with Compressor for Any...
  • Material : High quality Chrome Plated ZINC Trumpets(Non-Rusting) Overall

Last update on 2021-12-09 / Affiliate links / Images from Amazon Product Advertising API

How Air Horns Work

Air Horn Diagram

Pressurised air is forced through a compression chamber which then vibrates a diaphragm the compression chamber is remains pressurised to allow the horn to sound instantly when the horn switch is pressed, when the horn switch is pressed a valve will open and allow the air to be released from the chamber into the horns throat, when the air exits the chamber the diaphragm starts to vibrate and a sound is produced.

The length of the horn and the horn mouth determine the tone and volume that will be created.

Achievable Sound levels

  • 100-120db
  • 120 – 140db
  • 140 – 160db

Voltages

  • 12 volts
  • 24 volts
  • 12/24 volts

Air horns can be used on various types of vehicles such as trucks, trains, or even in a work environment as a warning sound, such as oil rigs, large factories or stadiums.

Horns can be mounted to a vehicles roof, or within the engine bay with easy to attach fixing brackets.

Rules and Regulations For Truck Horns

In the UK there are rules regarding the use of horns, it is important that you do not get tempted by musical air horns such as the old dukes of hazzard tune from the eighties, musical air horns are illegal to use on public roads, the sound produced from the air horns on your truck should be a continuous sound, this rule is because multiple sounds such as a tune could be mistaken for emergency vehicle sirens which do have a multiple tonal sound.

Loud noises are restricted in the UK between 11.30 pm and 07.00 am, but a horn can be sounded if it is used as a genuine warning to prevent an accident.

All the information about the up to date road regulations can be found in the UK Highway code booklet.

If a trucks air horn is fitted to your truck it must be in working condition, if an air horn is not working the truck could fail MOT inspection.

Horn Comparisons

The trumpet type horns on a truck are mostly louder than a standard horn fitted to a truck as standard, in fact most reach up to 150 DB which will certainly get the attention of anyone who hears it.

Standard Horn 135DB

Last update on 2021-12-09 / Affiliate links / Images from Amazon Product Advertising API

Snail Type Horn 110DB

Last update on 2021-12-09 / Affiliate links / Images from Amazon Product Advertising API

Trumpet Air Horn 150DB

Last update on 2021-12-09 / Affiliate links / Images from Amazon Product Advertising API

Conclusion

Truck air horns can provide a louder warning sound to other road users.

Air horns for trucks are powered by electric from the trucks batteries or circuits through a compressor that creates the flow of air required to sound the trumpets.

Musical air horns are not legal on public roads due to them sounding like emergency service vehicles, air horns must have a continuous single sound.

Air horns look cool on truck and truck drivers love them!