Kleinn Roof Mount Air Horns are designed for drivers who want true over-the-road truck sound and styling. These horns mount on top of the cab, delivering maximum sound projection while creating a bold, unmistakable look.
Built from chrome-plated metal trumpets, both models are engineered for durability and acoustic performance. The dual-horn Model 401 produces a richer, more complex tone, while the single-horn Model 412 offers a deeper, classic sound profile.
These horns require an external onboard air system and typically operate best between 120–175 PSI, ensuring consistent, high-output performance.
The underside air inlet design keeps airlines hidden, helping maintain a clean installation while protecting components from exposure.
Whether you're building a show truck, customizing a rig, or upgrading for maximum road presence, these roof mount horns deliver unmatched style and sound. Now Available at LEER!
Features & Specifications
Product Type: Roof Mount Air Horn
Material: Chrome-plated metal (copper/zinc alloy depending on model)
Finish Options: Chrome
Mounting Type: Roof-mounted bracket
Fitment: Universal
Design: Over-the-road style truck horn
Key Dimensions:
- Dual horn: ~15" & 13"
- Single horn: ~25"
Functionality:
- High-decibel air horn output (~150+ dB)
- Manual or electric activation
- Requires onboard air system
Available Options
Configurations
- Model 401 (Dual Horn) – Best for maximum sound and aggressive tone
- Model 412 (Single Horn) – Best for classic styling and simplicity
Choose dual horns for louder, fuller sound, or single horn for traditional big rig style.
Why Choose Kleinn Roof Mount Horns?
This product is ideal for customers who want true truck-style sound and visual impact.
- Iconic big rig appearance
- Maximum sound projection from roof position
- Durable metal construction
- Compatible with a wide range of onboard air systems
What’s Included
- Roof mount air horn (single or dual depending on model)
- Airline tubing
- Mounting hardware
Installation Notes
- Requires onboard air system (compressor + tank)
- Requires valve (manual or electric) – sold separately
- Roof drilling typically required
- Typical install time: 2–4 hours
Warranty Information
Kleinn Warranty
Kleinn products are backed by a limited warranty, covering defects in materials and workmanship.
