United Pacific – Black 3 Trumpets Train Horn

Black 3 Trumpets Train Horn

Make your presence known with the United Pacific Black 3 Trumpets Train Horn. Engineered for powerful sound output, this horn delivers a striking 145 dB – 10 dB performance when paired with the included 12V heavy-duty electric solenoid. Built for reliability, it supports up to 150 psi max pressure and includes a mounting pad with bolts for straightforward installation. Measuring 15-3/4" x 12-1/2" x 11-1/2", this compact but mighty horn ensures you get noticed on the road.

Important Mounting Notice

Placement of the horn cannot be underneath the truck. Item must be mounted horizontally behind the truck. Mounting horns upside down or underneath the truck will subject the horns to road hazards and debris. Incorrect mounting voids any warranty.

Product Features

• Manufacturer: United Pacific
• Item Number: 46127
• Sound Output: 145 dB – 10 dB
• Pressure Capacity: Max 150 psi
• Voltage: 12V heavy-duty electric solenoid included
• Construction: Durable multi-trumpet train horn assembly
• Dimensions: 15-3/4" x 12-1/2" x 11-1/2"
• Installation: Includes mounting pad and bolts
• Sold individually

Performance and Fit

This high-output train horn is engineered for maximum sound projection and long-lasting performance. With a 150 psi pressure capacity and heavy-duty solenoid, it provides consistent, powerful blasts suitable for trucks, commercial vehicles, and custom builds. The included mounting hardware ensures secure installation.

Installation

1. Choose a safe, horizontal mounting location behind the truck.
2. Secure the mounting pad using the included bolts.
3. Connect the 12V solenoid wiring to the horn system.
4. Test the horn for proper sound and pressure performance.

Why You Will Love It

• Extremely loud 145 dB output
• Durable construction built for long-term visibility and safety
• Includes heavy-duty solenoid and mounting hardware
• Ideal for trucks, off-road vehicles, and custom builds
• Compact footprint for easier mounting

Common Questions

• Does it require an air tank? Yes, a compatible air system is required to reach 150 psi performance.
• Can I mount it under the truck? No—mounting underneath voids the warranty and exposes the horn to damage.
• Is wiring included? The 12V solenoid is included; wiring may depend on your specific setup.

⚠️ California Proposition 65 Warning:This product can expose you to chemicals found in plated finishes and electronic components, which are known to the State of California to cause cancer and reproductive harm.