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

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KL HK1

Regular price $299.95
Sale price $299.95 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 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.


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 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 Internal 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.)

Installation Instruction Links:

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

$299.95

Does it come with a warranty?

One-Year Limited Defect Warranty for Kleinn Automotive Accessories:

Kleinn Automotive Accessories is committed to delivering high-quality products to our customers. We stand behind the craftsmanship and materials of our products by offering a comprehensive one-year limited warranty. This warranty is extended to the original purchaser, ensuring that when our products are installed properly and used under standard conditions, they will be free from defects in workmanship and materials for a period of one year from the original date of purchase.

This warranty encompasses a promise that the product you have purchased will perform as expected under normal use conditions and will not suffer from flaws in materials or craftsmanship. However, it is important to note that this warranty does not cover any damage that results from abusive use, operation that is not in line with the product’s intended purpose, or harm resulting from exposure to harsh environmental conditions. In the event that a product is found to be defective within the warranty period following a thorough inspection, Kleinn Automotive Accessories reserves the right to either repair or replace the defective item at no additional charge to the purchaser. It is our goal to ensure that our products meet the high standards that our customers expect, but we also want to clarify that Kleinn is not responsible for covering any costs related to the installation of our products, nor are we liable for any loss or damage that may occur as a result of the repair or replacement process of any product under warranty.

Extended Two-Year Warranty for Select Products:

Understanding the specific needs of our customers and the demands placed on certain products, Kleinn Automotive Accessories is pleased to offer an exclusive extended two-year warranty for our 6450/6650 Compressors and 730 Horns. This special warranty extension reflects our confidence in these products’ durability and performance. Eligible products under this extended warranty will enjoy all the benefits of our standard one-year warranty with an additional year of protection, totaling two years from the date of purchase. This extended warranty coverage ensures that these specific models, recognized for their robustness and reliability, receive the extra assurance customers desire for these critical components.

Detailed Warranty Return Procedure:

Should you need to initiate a return under the warranty, we have a straightforward process designed to make it as convenient as possible for our valued customers. To start, you will need to email a copy of your sales receipt, which must be dated within the past year for standard warranty claims or within the past two years for claims under the extended warranty for the 6450 Compressors and 730 Horns. This email should be directed to our Warranty Manager and include your full name, email address, telephone number, and a concise description of the problem you are experiencing.

Upon receipt of your email, a dedicated representative from Kleinn Automotive Accessories will reach out to you directly. Our first step will always be to attempt to resolve the issue through technical support, aiming to provide a quick and effective solution. If the problem cannot be addressed remotely, our representative will issue a Return Authorization number. This number is crucial as it will identify your return throughout the inspection process. You are then required to send the product back to Kleinn Automotive Accessories for a comprehensive physical inspection.

Upon inspection, if the product is determined to be defective due to issues in workmanship or materials, Kleinn will undertake to either repair or replace the product at our discretion. We are committed to ensuring that our customers receive products that meet our high-quality standards, and we will make every effort to resolve warranty claims to your satisfaction. However, if the inspection reveals that the product does not have a material defect, we will return the unit to the customer. In such cases, the shipping costs for the return will be the responsibility of the customer.

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.