Kleinn Quad Black Horn Kit w/ 130 PSI Air Compressor / 1.0 gal Air Tank

Equip your vehicle with the Kleinn HK4-1 complete direct bolt-on ProBlaster quad black air horn and onboard air system, featuring four tuned zinc alloy trumpets measuring 13 inches, 11 inches, 8.5 inches, and 7 inches in length with 3-inch bell ends. Engineered for universal application, this premium truck horn configuration leverages additional trumpets to deliver a more fully-blended, devastating chord while remaining compact enough to fit inside almost any car, truck, or sport utility vehicle. Providing the pneumatic power is a Model 6270RC 130 PSI waterproof electronic air compressor paired with a generous 1.0-gallon all-steel air tank equipped with an internal Cortec anti-corrosion coating to provide maximum blast time. Designed for a clean, professional, and seamless installation, this complete standalone package comes right out of the box with a pre-wired Vortex 4 Series Model 307 electronic solenoid valve, a 1/4-inch high-pressure airline, a 12-volt relay, a pressure switch, and all necessary mounting hardware to ensure long-lasting durability and a stealthy, high-performance aesthetic on any custom build.

Additional Information

ProBlaster complete compact quad air horn package with black horns and 130 PSI sealed air system.

Part Type

Accessory Horn

• 130 PSI rated system
• 6270RC Waterproof Sealed air compressor
• 6270RT 1.0 gallon air tank (Five 1/4" NPT ports), all steel construction, Cortec internally coated against corrosion. Manufactured to SAE J10 and FMVSS 121 standards
• All wiring, fittings, and hardware included

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Horns, Quad Air, Trumpet Style, 4 Different Lengths, Compact System w/Compressor/Tank, 130 psi, 1 Gallon, 149.2 Decibels at 100 psi, XCR2.0 Black, Kit

Kleinn ProBlaster compact quad air horn kits include four tuned trumpets. This set creates a more fully blended tone, while also being compact enough to fit most vehicles. They include a 130 psi, 1-gallon air system and are available in chrome or black stealth finishes. Find out why Kleinn Automotive Accessories are a leader in air horn and related pneumatic accessories for cars, trucks, SUVs, and everything else with a 12- or 24-volt power source when you order the Kleinn ProBlaster compact quad air horn kit best suited for your application.

More product features, items, and specifications include:
• Horn sizes – 13.0 in., 11.0 in., 8.5 in., and 7.0 in. long (14.5 in. x 7.0 in. x 7.0 in. assembled)
• Air horn solenoid
• Air compressor – 130 psi (6.2 in. x 3.0 in. x 5.0 in.)
• Air tank - 1 gallon (11.0 in. x 6.0 in. x 8.0 in.)
• Pressure switch
• Output – 149.2 dB at 100 psi
• Drain valve, safety valve, and outlet air fitting
• High-pressure nylon air tubing (12 ft.) and button
• Wiring/installation kit
• Available with Chrome or XCR2.0 black finish