Kleinn Triple Black Horn Kit w/150 PSI Waterproof 3.0 gal Air Tank

SKU: KLEHK9_SLIMLINE

Accessory Horn

KLE Triple Air Horns...

Kleinn Air Horns

Kleinn Triple Black Horn Kit w/150 PSI Waterproof 3.0 gal Air Tank

SKU: KLEHK9_SLIMLINE

Accessory Horn

KLE Triple Air Horns...

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Description

The Kleinn HK9-Slimline ProBlaster Triple Train Horn Kit stands as the brand's biggest and loudest train horn system, uniquely equipped with a slim-design 3-gallon air tank for a much easier installation profile. This massive system features the Demon Model 730's detachable XCR 2.0 spun steel trumpets measuring 18.25, 14.75, and 11 inches in length to allow for a wide variety of versatile mounting configurations. Powered by a high-output 150 PSI, 100% duty cycle waterproof compressor, this heavy-duty onboard air system includes a tire inflation kit with a storage bag and packs enough punch to support auxiliary accessories like air bags and small air tools. For ultimate performance, the system can be upgraded with an Ultra BlastMaster valve upgrade kit (P/N 6890), making it the loudest, largest, and most aggressive train horn setup on the market.

Application Summary

Universal

Part Type

Accessory Horn

Data: v4.2 - Upd: 2026-10-14 05:13:40

Features

6351RT Slim Air Tank 27 x 6 x 8", five 1/4" NPT, one 3/8" NPT Ports
6450RC Waterproof Sealed Air Compressor 100% Duty Cycle, 200 PSI
All Wiring, Fittings, and hardware included
INF-1 - Tire Inflation Kit with Quick Connect Coupler included

Specifications

Reference Information

Brand Name/s	Kleinn Air Horns
StreetFX SKU	kleHK9_Slimline
SFX Item ID	4465041
Supplier Item Code	4465041
Manufacturer SKU	HK9 Slimline
Manufacturer UPC	819147011554
Alternative References	klehk9, hk9, w/150