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Kleinn 411 is the Model 411: Single Round Roof Mount - 25" Air Horn - Chrome-Plated Stainless Steel - Big Rig Sound. Match the exact manufacturer part number, configuration, voltage, pressure, dimensions, connections, included components, and vehicle application before ordering.
Key Features
- Imposing 25" Trumpet Profile: Features an extra-long, commercial-grade single round trumpet designed to replicate authentic highway locomotive volume and pitch.
- Underside Air Inlet Path: Keeps all pneumatic connections and lines cleanly hidden underneath the mounting foot, avoiding exposed cabin roof infrastructure.
- Mirror-Polished Stainless Base: Solid stainless-steel fabrication with deep chrome plating provides complete defense against weather, corrosion, and rust.
- Model 411: Single Round Roof Mount 25" Air Horn
- Pneumatic hardware: 1/4" Compression Fitting (Underside 1/4" OD Airline Entry)
Fitment
| Fitment Status | Universal only by exact specifications |
|---|---|
| Required Verification | Voltage, pressure, flow, duty cycle, dimensions, ports, air-line size, wiring, mounting, and companion components |
Specifications
| Brand | Kleinn Air Horns |
|---|---|
| Manufacturer Part Number | 411 |
| Product Type | Air Horns |
| Fitment Type | Universal |
| Condition | New |
| GTIN | 819147010083 |
| Warranty | 1-Year Warranty |
| Construction | Chrome Plated Stainless Steel |
| Manual Horn Activation (Sold Separately) | P/N 310 chain style or 311 lanyard style |
| 12-Volt Horn Activation (Sold Separately) | P/N- 307 Light-Duty or VX6003 Heavy-Duty |
| Min - Max Pressure | 120 - 175 PSI |
| Output (dB) @ 150 PSI | 150.1 dB |
| Dimensions | 25” L x 6” W x 6” H |
| Minimum Tank Size | 1.5 Gallon |
| Airline Input Size / Fitting Pack Part # | ¼” Airline / 330 roof mount fitting pack |
| Shipping Weight | 5 lbs |
What's Included
- Model 411: Single Round Roof Mount 25" Air Horn
- Pneumatic hardware: 1/4" Compression Fitting (Underside 1/4" OD Airline Entry)
- Mounting Hardware: Nuts, Bolts, Washers, and Trumpet Mounting ORE.
About Kleinn Air Horns
Kleinn develops vehicle-specific and universal train horns, air horns, onboard-air systems, compressors, tanks, valves, controls, and remote-start systems. Every pressure, electrical, dimensional, and vehicle requirement remains exact-part specific.
Related Kleinn Air Horns Products
- Shop all Kleinn Air Horns products
- Kleinn Chrome Roof Mount Dual Horn/ 13.5In/11.5In - Chrome-Plated Spun Copper
- Kleinn Chrome Roof Mount Single Horn/ 22.75In - Chrome-Plated Spun Copper
- Kleinn Chrome Direct Drive Dual Horn/ 6.5In/4.5In - Chrome-Plated Zinc Alloy
Frequently Asked Questions
What must match before installing Kleinn 411?
Confirm voltage, pressure, flow, duty cycle, port and air-line sizes, dimensions, mounting orientation, wiring load, and compatibility with every connected component.
What air system is required for Kleinn 411?
Match the horn's required pressure, airflow, valve, tubing size, compressor duty cycle, and tank capacity. A compressor or tank is included only when the exact listing states it.
Where can Kleinn 411 be mounted?
Use a rigid protected location with adequate clearance, drainage, airflow, and safe routing for wiring and air line. Keep every component away from heat, moving parts, road impact, and water exposure beyond its rating.
Installation Instructions
Confirm Kleinn part number 411 and the complete application before beginning. Mount every component in the specified orientation, use correctly sized fused wiring and protected grounds, route air line away from heat and moving parts, seal only the approved threads, leak-test the system, verify cut-in and cut-out pressure, and confirm safe operation before driving.
