Description
At a Glance
- Fits: Universal (not vehicle-specific) – check measurements before ordering
- Brand / Part #: Kleinn HK9
- Package dimensions (L × W × H): 23 × 19 × 21 in.
- Shipping weight: 57 lb
The Kleinn HK9 ProBlaster Triple Train Horn Kit stands as the brand's ultimate, biggest, and loudest train horn system, featuring the Demon Model 730's massive and detachable XCR 2.0 spun steel trumpets measuring 18.25, 14.25, and 11 inches in length with a mounting base that adds an additional 3.5 inches. Engineered to allow for a wide variety of versatile, individual, or combined installation configurations, this heavy-duty system is powered by a high-output 150 PSI, 100% duty cycle waterproof air compressor paired with a massive 5-gallon steel air tank. Complete with a bonus tire inflation kit and storage bag, this robust onboard air setup packs more than enough punch to power your horns alongside auxiliary accessories like air bags and small air tools, and for maximum performance, it can be upgraded with an Ultra BlastMaster valve upgrade kit (P/N 6890) to create the loudest, largest, and most aggressive train horn setup available on the market.
Features:
- All Wiring, Fittings, and hardware included
- Model 6450RC Waterproof Sealed air compressor 100% Duty Cycle, 200 PSI
- Model 6450RT 5.0 gallon air tank (Five 1/4" NPT, one 1/2" NPT ports), all steel construction, manufactured to SAE J10 and FMVSS 121 standards
Specifications:
- Brand: Kleinn
- Part Number: HK9
- Add-On: Double the output by adding Upgrade kit 6890 - Add sniper remote kit Model 333
- Attribute 1: Features Model 730 triple spun steel black triple train horn
- Attribute 2: 5.0 gallon air tank (Five 1/4 in. NPT, one 1/2 in. NPT ports), all steel construction, manufactured to SAE J10 and FMVSS 121 standards
- Attribute 3: 150 PSI (200 Max) rated system
- Attribute 4: Waterproof air compressor
- Attribute 5: All hardware included
Fits:
- Universal fit (not vehicle-specific). Compare the dimensions to your vehicle before ordering.


