Model HK1: Universal ProBlaster™ Complete Mini Black Dual Air Horn Kit | 120 PSI

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KL HK1

Regular price $254.95
Sale price $254.95 Regular price $299.95

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PROP 65 WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Model HK1: Universal ProBlaster™ Mini Black Dual Air Horn Kit

TIME TO RETIRE THAT WIMPY FACTORY HORN!

The Model HK1 is engineered specifically for drivers who demand maximum sonic impact and a discrete, "blacked-out" aesthetic, even in the most cramped mounting locations. This system provides the ultimate value by packing the raw, commanding authority of a professional air horn into our most compact, streamlined package yet. While other systems struggle to find space, the HK1's shorter trumpet design ensures you have the presence of a much larger vehicle, making it the perfect upgrade for those looking to replace a weak factory chirp with a high-impact blast that fits where others can't.

PROFESSIONAL-GRADE PERFORMANCE

At the heart of the system is the 6270RC waterproof sealed air compressor paired with dual trumpets featuring our signature XCR2.0 black zinc alloy finish. This heavy-duty combination is built to withstand the harshest elements while providing a sleek, muted look that disappears behind your grille. The 120 PSI air system is optimized for rapid recovery and includes a 0.5-gallon inner-coated steel tank, ensuring you always have a reliable air supply ready. It’s a rugged, oil-less design that prioritizes durability and consistent performance in any environment.

MAXIMUM SOUND – MINIMUM FOOTPRINT

The HK1 takes "compact" to the next level. Featuring horns that are even shorter than our HK2-1 model, this kit is the champion of tight installations and produces a high-screaming blast. Its ultra-low-profile design allows for a seamless fit in extremely restricted spaces, such as compact engine bays or narrow gaps behind the grille, where traditional air horns simply won't fit. By choosing the Model HK1, you are getting the same professional-grade "get out of the way" authority as our larger kits, but in a size that guarantees a fit for virtually any vehicle.

WHY CHOOSE MODEL HK1?

  • 2-Tone Authority: The 101 air horns produce a high-pitch, startling, high-pressure 2-tone blast designed to pierce through the loudest traffic and heavy machinery.
  • Industry-Leading Submersible Waterproof Compressor: Drive with total confidence through river crossings or monsoons by drawing air from inside the vehicle using the snorkel kit.
  • 25% Duty Cycle Reliable Performance: The 120 PSI system ensures you always have the air you need, featuring its oil-less, maintenance-free design with thermal protection.
  • Compact Integration: The low-profile, stealth XCR2.0 Coated Black design allows for a seamless fit behind the grille or tucked inside the engine bay.
  • Advanced Corrosion Resistance: The 0.5-Gallon air tank is treated with an internal anti-corrosion coating, preventing internal rust.
  • Trusted Quality: Don’t settle for a weak factory chirp—get the professional-grade power and reliability that thousands of Kleinn clients trust.

THE VERDICT: The Model HK1 Stealth Kit delivers our most compact and ultra-low-profile blacked-out design, making it the perfect solution for small engine bays or tight real estate spaces requiring a piercing, high-pressure dual scream.

WHAT’S IN THE BOX?

  • 101: Dual XCR2.0 Coated Black Steel Compact Air Horns
  • 6270RC: 120 PSI Waterproof Air Compressor (25% Duty Cycle)
  • Snorkel Kit: Remote mount intake filter for clean air delivery (Draw air from inside the vehicle)
  • 6260RT: 0.5-Gallon steel air tank with internal anti-corrosion coating
  • FIT12: Fitting Pack (Sealed pressure switch, safety valve, and drain valve)
  • Installation Kit: Comprehensive wiring, airline, and all necessary hardware

Air Horns vs. Train Horns

Find Your Signature Blast

The Screamer

Compact Air Horn Series

Engineered for "Emergency Vehicle" authority. This series delivers a sharp, high-frequency blast designed to cut through ambient noise instantly. With 3.5" bells, these horns produce a piercing scream that commands attention in heavy traffic.

Classic Chrome
  • Compact Air Horns: 102 / 130 / 141
  • Universal Air Horn Kits: HK2 / HK3 / HK4
Stealth Black
  • Compact Air Horns: 101 / 102-1 / 130-1 / 141-1
  • Universal Air Horn Kits: HK1 / HK2-1 / HK3-1 / HK4-1 / HKUTV
  • Vehicle Specific Air Horn Kits: Models ending in 102, 102-1

The Deep Rumble

Train Horn Series

Don’t just make noise—make an impact. Engineered with massive 6-7" bells, our Train Horns move huge volumes of air to create a deep, earth-shaking rumble. This is the authentic tone of a classic 40,000-lb locomotive.

Classic Chrome
  • ABS Train Horns: 500 Sentinel / 501 Warlock
  • Steel Train Horns: 502 Kraken / 630 Titan
  • Universal Train Horn Kits: HK6 / HK8
Stealth Black
  • ABS Train Horns: 220 Mini Beast / 230 Beast
  • Steel Train Horns: 730 Demon
  • Universal Train Horn Kits: HK5 / HK7 / HK9 / HK9-Slimline
  • Vehicle Specific Train Horn Kits: All Models

Professional-grade engineering. Legendary Kleinn Performance.

Too Loud? Too Bad!


AIR HORN SPECIFICATIONS

Mini Dual Black Air Horns
Part Number Model 101
Number of Horns 2 Horns (Single Mount)
Warranty 1-Year Warranty
Construction XCR 2.0 Black Coated Stainless Steel
Vortex 4 Chrome 12v Solenoid P/N- 307 w/ ¼” Airline Input
Min / Max Pressure 120 - 150 PSI
Output (dB) @ 150 PSI 146.2 dB
Dimensions 11.5” L x 6” W x 3.75” H
Minimum Tank Size 0.5-Gallon
Airline Input Size 1/4" OD Airline

AIR COMPRESSOR SPECIFICATIONS

12-Volt Light-Duty Compressor
Part Number Model 6270RC
Warranty 1-Year
Max Pressure 120 PSI
Duty Cycle 25% @ 100 PSI (@ 72° F)
Flow Rate @ 0 PSI (13.8 Volts): 1.56 CFM
Compressor Type Waterproof Sealed, Oil-less
Voltage 12-Volt DC
Motor Type Permanent Magnetic Motor
Max Tank Size 0.5 Gallon
Max Amp Draw 14 Amps
Dimensions 6.4” L x 3.5” W x 4.6” H
Mounting Holes 6.14” L x 2.76” W (5mm Diameter)
Mounting Note Mount in any position except upside down
Shipping Weight 7 lbs
Pressure Switch/ Safety Valve HK1-HK2 P/N 2121 (Pair w/ 52145 for 120 PSI kits)
Pressure Switch/ Safety Valve HK3-HK4 P/N 2131 (Pair w/ 52155 for 130 PSI Kits)

AIR TANK SPECIFICATIONS

0.5-Gallon Air Tank
Part Number Model 6260RT
Warranty 1-Year
Tank Capacity 0.5-Gallon
Construction All Steel Design (Gloss Black Epoxy Finish)
Internal Coating Cortec Coating for Corrosion Resistance
Mounting Legs 1 Leg w/ 2 Mounting Points
Air Tank Ports 5 - 1/4" NPT Ports
Mounting Hardware Fitting Pack - 2 Bolts, Nuts, Washers
Max Pressure 150 PSI
Dimensions 8” L x 6” W x 8” H

AIR TANK FILL RATE DETAILS

Tank Capacity Tank Pressure Range Tank Fill Rate
.5 Gallon 0 - 150 PSI 1 Min. 11 Sec. (+/- 5 Sec.)
.5 Gallon 110 - 150 PSI 26 Sec. (+/- 3 Sec.)
1 Gallon 0 - 150 PSI 1 Min. 57 Sec. (+/- 10 Sec.)
1 Gallon 110 - 150 PSI 38 Sec. (+/- 5 Sec.)
Model HK1: Universal ProBlaster™ Complete Mini Black Dual Air Horn Kit | 120 PSI

$254.95

Does it come with a warranty?

Kleinn Automotive Accessories Limited Warranty

Kleinn Automotive Accessories stands behind the quality and craftsmanship of our products. Our products are covered against defects in materials and workmanship when properly installed and used under normal operating conditions, subject to the terms below.

One-Year Limited Warranty

Unless otherwise specified, Kleinn Automotive Accessories products are covered by a 1-year limited warranty from the original date of purchase.

This warranty applies to the original purchaser and covers defects in materials and workmanship under normal use.

If a product is determined to have a covered warranty defect, Kleinn Automotive Accessories will, at its discretion, repair or replace the defective product or component.

What Is Not Covered

This warranty does not cover damage or failure resulting from:

  • Improper installation
  • Misuse, abuse, or improper operation
  • Use outside the product's intended application or specifications
  • Modification or alteration of the product
  • Accidents or physical damage
  • Electrical damage
  • Environmental damage or exposure
  • Normal wear and tear

Kleinn Automotive Accessories is not responsible for installation or removal charges, diagnostic fees, labor costs, vehicle downtime, loss of use, or other incidental or consequential expenses associated with warranty service.

Warranty Claims

To request warranty service, email warranty@kleinn.com with the following information:

  • A copy of your original sales receipt or proof of purchase
  • Your full name
  • Email address
  • Telephone number
  • A brief description of the issue

A Kleinn representative will review your claim and may first attempt to resolve the issue through technical support.

If the product needs to be returned for inspection, Kleinn will provide a Return Authorization (RA) number and return instructions. Products should not be returned without prior authorization.

Once received, the product will be inspected to determine whether the issue is covered under warranty. If a covered defect in materials or workmanship is confirmed, Kleinn will, at its discretion, repair or replace the defective product or component.

If inspection determines that the product does not have a covered warranty defect, the product may be returned to the customer, and the customer will be responsible for applicable return shipping costs.

This limited warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

Kleinn Automotive Accessories
4045 N. Highway Drive, Tucson, AZ 85705
Tel (520) 579-1531

What's the returns policy?

How To Return An Item

Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase.

1. Please email support@kleinn.com to request a refund and we will assign you a Return Authorization #.

2. Mail your returned item to:
Kleinn Automotive Accessories
Returns Department
4045 N Highway Drive
Tucson, AZ 85705

3. Include in your package a signed letter stating the reason for your return and the original receipt.

Return Non-Exceptions

Merchandise that has been worn, used, or altered will not be accepted for return or exchange.

Restocking Fee

All returns are subject to a 15% restocking fee, which will be deducted from your refund. If shipping and handling fees were applied to your order, they are non-refundable.