Best Hella Air Horns in 2026

Auto & Truck Maintenance

Patented One-Piece Design That Requires No Hoses

Installs Easily In Minutes By Simply Transferring The Factory Horn Wires To The Compressor

Product Specifications Voltage: 12V Low Tone Frequency: 300 Hz High Tone Frequency: 500 Hz Sound Level at 2 Meters: 118 dB Power Consumption: 66W Box Contains High-Tone Unit Low-Tone Unit Relay Mounting Brackets Step-by-Step Mounting Instructions Ideal for 12 Volt Performance for all Vehicles Gives Dramatic looks under the Grill Dimensions 12.5cm Diameter Horn 8.5cm Mounting Bracket Part Number 3AG 003 399-801

Item Package Length: 13.208cm

Item Package Width: 13.716cm

【LOUD AND POWERFUL HORN】Upgraded interior structure can produce up to 150DB pleasing tone for any weather condition,which makes it a good safety companion while driving

【STRONG AIR COMPRESSOR】The truck horn has bigger coil,better material,stronger air pressure give the air horn louder and more clear warning to other's driving actions

【DURABLE】Chrome Plated ZINC Trumpet,All-copper coil,and train horns the metal trumpet and compressor are weather resistant, all kits are designed for long time service

Immensely loud Quad Trumpet Train Air Horn

Tank Capacity: 3 Gallon (12 liter)

200 PSI Compressor (12 volt)

Premium Quality: Our loud train truck horns kit is composed of zinc chrome-plated material and carbon steel body to ensure maximum strength and durability. It is can withstand harsh weather conditions or extreme temperatures with trusted quality and lifespan.

150dB Loud Air Horn: The loudness of these air horns for trucks and trains can reach up to 150 decibels. 4 different size stainless steel horns emit a super loud warning, audible from several miles away. With such a strong sound, it is the most effective and safest way to alert others of your presence.

120 PSI Compressor: This air horn comes with a 3L / 0.8 gallon air compressor equipped with an automatic safety protection design, which will automatically stop pumping when the air pressure reaches 120PSI inside. Besides, it is equipped with 4 vibration pads and a 30-ampere fuse under the mounting leg to avoid hazards effectively.

Ample quantity: you will get 4 pieces 300db electric snail horns with 4 pieces brackets and 4 pieces screws, ample quantity and sufficient accessories will satisfy your daily installed requirements, giving your car a loud sound to warn others and avoid some collisions

Size information: the loud air electric snail single horn measures approx. 3.55 x 3.55 inch/9 x 9 cm, the bracket measures approx. 3.13 inch/7.95 cm in length, and the screw measures approx. 0.39 inch/1 cm in diameter, proper size will make your installation more easily

Easy to Use: the waterproof auto horn decoration is equipped with the brackets and screws, sensible combination of equipment for you to install conveniently, and you only need 12V electric power to fit them, which can produce clear and loud sound for your car

[BUILD & LOOK] Introducing the OCTOPOD™, a unique patented design (U.S. Design Patent No. D937,344 S) including 8 air horns with dual 12V heavy duty solenoids and a larger air orifice. This advanced structure is designed to deliver a LOUD hard-to-beat blast with a massive DEEP tone that will catch everyone's attention. Check the sound sample video.

[SUPER LOUD TRAIN HORN SOUND] This special combination of 8 trumpets delivers a hard-to-beat POWERFUL blast with a massive DEEP tone that won't be ignored. Pair it with one of our matching onboard air systems and unleash the beast.

[CUSTOMIZE IT] In this unique design the trumpets are simple to move around so you can convert its style between convex (default) or the optional concave (see images). The kit includes detailed instructions and heavy duty mounting hardware for long-lasting installation.

Onboard Air System (Air Tank & Compressor) Required To Operate- Not Included

Single Trumpet (Long) Air Horn Chrome Plated

Weather Protection Cover

Hella's ultra-reliable disc horns look and sound like nothing else on the road. These horns guarantee your highest safety and the attention needed in critical situations.

Disc horns are for drivers looking for a horn that combines a good price-performance ratio and high quality.

HELLA horns guarantee best functionality, optimum fit and long lasting customer satisfaction.

Inspection Tag: E12 01004

Diameter [mm]: 130

Overall Height [mm]: 143

HORN KIT AIR 2-TRUMPET HGHWAY

Hella 005411001 Horn Kit Air 2-Trumpet Hghway