The Kleinn HK7 “Beast” Triple Train Horn Kit is designed for drivers who want a complete, high-performance onboard air system paired with true train horn sound. It delivers an aggressive, multi-tone locomotive blast while offering the functionality of a full onboard air setup.
Built around the Model 230 “Beast” ABS triple horn, this system uses high-impact ABS construction for durability and corrosion resistance while keeping weight manageable. The three tuned trumpets (approx. 17.5", 14.5", and 11.5") produce a deep, harmonic tone that closely replicates a real train horn.
Additional features include a 150 PSI 100% duty cycle waterproof compressor, a large 3-gallon steel air tank, and a Vortex™ high-flow solenoid for rapid air delivery. This combination ensures powerful, consistent output and extended blast duration compared to smaller kits.
Engineered with universal fitment, the modular flat-rack horn design allows installation underbody, behind grilles, or on frame rails—even in tighter spaces than traditional train horns.
Installation is typically a bolt-on process with included wiring and hardware, making it suitable for both DIY and professional installs.
Whether you're upgrading for maximum road presence, off-road capability, or a full onboard air solution, the HK7 delivers top-tier performance. Now Available at LEER!
Features & Specifications
Product Type: Complete Triple Train Horn & Onboard Air Kit
Material: High-impact ABS trumpets / steel air tank
Finish Options: Black
Mounting Type: Flat rack / modular mounting
Fitment: Universal
Design: Triple train horn system with full onboard air
Key Dimensions:
- Trumpets: ~17.5", 14.5", 11.5"
Functionality:
- Multi-tone train horn output (~150–153 dB)
- Air-powered system with compressor and large tank
- Supports tire inflation and auxiliary air tools
Available Options
The Kleinn HK7 Beast Train Horn Kit is available in:
Vehicle Fitments:
Universal (fits most trucks, SUVs, Jeeps, and off-road vehicles)
Finish Options:
Configurations:
- HK7 – Complete triple train horn kit with 3-gallon tank and onboard air system
Choose the HK7 Beast if you want maximum performance with full onboard air capability—not just a horn kit.
Why Choose Kleinn HK7 Beast?
This product is ideal for customers who want a complete high-performance system, not just a horn.
- Much longer blast duration than HK3/HK4/HK6 kits
- Powerful enough for both horns and utility air use
- True train horn sound with professional-grade output
- Built for extreme off-road and heavy-duty applications
What’s Included
- Triple ABS train horn assembly (Model 230 Beast)
- 150 PSI waterproof air compressor (100% duty cycle)
- 3-gallon steel air tank
- Vortex high-flow solenoid
- Pressure switch, drain valve, and safety valve
- 12 ft airline tubing + 35 ft tire inflation hose
- Wiring kit, relay, and horn button
- Installation instructions
Installation Notes
- Requires mounting space for 3-gallon tank and compressor
- Requires 12V electrical connection
- Typical install time: 3–5 hours depending on setup
- Ideal for trucks, Jeeps, and off-road builds with available space
Warranty Information
Kleinn Warranty
Kleinn products are backed by a limited warranty, covering defects in materials and workmanship.
