FARBIN 4-Trumpet 178dB Air Horn Kit for Trucks — 3L Tank, 12V Compressor, Zinc-Alloy Durability

The FARBIN 178dB 4-trumpet air horn kit is a heavy-duty train-style horn set with a 3L air tank and 12V compressor that delivers an extremely loud, attention-getting warning for trucks, SUVs, and commercial vehicles.

This complete horn system combines four tuned trumpets, a maintenance-free 3-liter air reservoir and an integrated 12V compressor so you can add a powerful, reliable warning device to your vehicle without relying on external compressors. Built from zinc-alloy components and supplied with mounting hardware, braided air hose, fuse and clear instructions, the kit is sized for easy installation and long outdoor use.

How loud is the FARBIN 4-trumpet air horn and how far will it carry?

The four horns are pitched and timed to project a composite blast rated up to 178 decibels, producing an audible warning that carries significantly farther than a standard electric horn. In open conditions the tone profile is designed to cut through ambient noise so other road users can hear you sooner.

• Combined output rated up to 178 dB for maximum noticeability.
• Four trumpets tuned to produce a layered, far-reaching blast.
• Effective in noisy traffic or open rural stretches.
• Designed to be heard from long distances when unobstructed.

What components come with the kit and what materials are used?

The package includes four zinc-alloy trumpets, a 3-liter (0.8 gallon) air tank, a 12V maintenance-free compressor with integrated filter and safety cutoff, plus all necessary mounting brackets, hose, wiring, fuse and instructions. Zinc alloy construction gives the horns structural strength and corrosion resistance for outdoor exposure.

• Four zinc-alloy horns for durability and clear tone.
• 3L air tank for multiple blasts between compressor cycles.
• 12V compressor with auto-stop at set pressure for safety.
• Complete mounting kit and electrical fuse included.

How difficult is installation and what electrical requirements are there?

The kit is made for straightforward DIY fitting or professional installation. All brackets, hoses and wiring are provided, and the compressor runs on a standard 12V vehicle system; the included fuse protects the circuit during operation.

• 12V DC operation compatible with most trucks and cars.
• Clear instructions plus hardware for common mounting locations.
• Compressor includes safety features and stops automatically at preset pressure.
• No external air supply required — self-contained system.

Is this horn durable in bad weather and heavy use?

The horns and tank are built to withstand outdoor elements and temperature swings typical of vehicle use. Zinc-alloy trumpets resist corrosion while the compressor includes an integrated air filter; the system is intended for repeated use in everyday driving and commercial applications.

• Zinc-alloy construction for rust resistance and strength.
• Compressor with air filter to reduce moisture and debris intake.
• Designed to endure road vibration and temperature changes.
• Maintenance-free compressor minimizes upkeep needs.

Who is this for: Drivers who need a highly noticeable, rugged warning horn — including truck owners, commercial fleets, emergency support vehicles and off-road enthusiasts — will find this FARBIN 4-trumpet air horn kit suitable. It fits vehicles with a 12V electrical system and is aimed at users who want a compact, self-contained air horn with strong projection and straightforward installation. If you require louder-than-stock signaling and a weather-resistant assembly built for repeated use, this kit is a practical upgrade. For questions about fitment or wiring, contact the seller for guidance before installation.