The Kleinn “Demon” Triple Train Horn (Model 730) is designed for drivers who want the absolute loudest and most aggressive train horn Kleinn offers. It delivers a thunderous locomotive blast while maintaining a compact, install-friendly footprint suitable for trucks, SUVs, and custom builds.
Built from spun steel with corrosion-resistant XCR2.0 coating and stainless-steel diaphragms, this horn system is engineered for durability in harsh environments including heat, UV exposure, and road salt.
Additional features include three removable trumpets (approx. 18.25", 14.75", and 10.5"), a high-flow Vortex™ 7 solenoid, and pressure capability up to ~200 PSI, ensuring maximum sound output and responsiveness.
Engineered with universal fitment, the Demon’s modular flat-rack design allows installation behind bumpers, under beds, or in tight engine compartments.
Installation is typically a bolt-on process when paired with an onboard air system (compressor and tank required).
Whether you're upgrading for extreme road presence, towing safety, or show-level sound performance, the Demon delivers unmatched volume and authority. Now Available at LEER!
Features & Specifications
Product Type: Triple Train Horn
Material: Spun steel trumpets with corrosion-resistant XCR2.0 coating
Finish Options: Black XCR2.0
Mounting Type: Flat rack or modular individual mounting
Fitment: Universal
Design: Triple trumpet train horn
Key Dimensions:
- Trumpet lengths: ~18.25", 14.75", 10.5"
Functionality:
- Multi-tone train horn output (~157+ dB)
- Air-powered system (requires compressor/tank)
- High-pressure operation (up to ~200 PSI)
Available Options
The Kleinn "Demon" Triple Train Horn is available in:
Vehicle Fitments:
Universal (fits most trucks, SUVs, Jeeps, and custom builds)
Finish Options:
Configurations:
- Model 730 – Triple train horn with flat rack and modular mounting
Choose the Demon 730 if you want the loudest, most aggressive horn in Kleinn’s lineup.
Why Choose Kleinn "Demon" Triple Train Horn?
This product is ideal for customers who want maximum sound output with true train horn performance.
- Loudest horn in Kleinn’s lineup
- Authentic locomotive tone with triple trumpet design
- Modular setup for flexible installation
- Built for extreme durability and long-term use
What’s Included
- Triple train horn assembly (flat rack mounted)
- Vortex 7 heavy-duty solenoid
- 12 ft of airline tubing
- Mounting hardware
- Installation instructions
Installation Notes
- Requires onboard air system (compressor and tank not included)
- Recommended minimum tank size: ~2.5 gallons
- Trumpets can be mounted separately for tight installations
- Typical install time: 2–4 hours depending on setup
Warranty Information
Kleinn Warranty
Kleinn products are backed by a limited warranty, covering defects in materials and workmanship.
