Model HK2-1: Universal ProBlaster Black Dual Air Horn System

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KL HK2-1

Regular price $339.95
Sale price $339.95 Regular price

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Model HK2-1: Universal ProBlaster Black Dual Air Horn System

Time to Retire the Wimpy Factory Horn

The Model HK2-1 is engineered specifically for drivers who demand maximum sonic impact and a discrete, "blacked-out" aesthetic without sacrificing valuable mounting space. This system provides the ultimate value by packing the raw, commanding authority of an emergency vehicle horn into a compact, streamlined package. Whether you are navigating busy city streets or rural highways, the HK2-1 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 professional-grade, high-impact blast.

Professional-Grade Performance

At the heart of the system is the high-performance 6270 waterproof air compressor paired with dual trumpets featuring our signature Stealth Black finish. This heavy-duty combination is not only built to withstand the harshest elements but also provides 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 whenever you need to make your presence known. It’s a rugged design prioritizes durability and consistent performance in virtually any environment.

Big Sound – Small Footprint

Installation is made simple thanks to the kit’s clever, low-profile, stealth black design. The compact footprint allows for a seamless fit in tight locations, such as behind the grille or tucked neatly inside the engine bay, where traditional train horns simply won't fit. By choosing the HK2-1, you are joining thousands of drivers who trust Kleinn for superior quality and loud, dependable results. Don’t settle for a vulnerable factory horn when you can have the professional-grade power and "get out of the way" authority of the Universal ProBlaster™ Stealth HK2-1.

WHY CHOOSE MODEL HK2-1?

  • 2-Tone Authority: Unlike the shorter 101 horns, these longer trumpets create a deeper tone that delivers a startling, high-pressure 2-tone blast designed to pierce through the loudest traffic and heavy machinery from construction.
  • Industry-Leading Submersible Waterproof Compressor: Drive with total confidence through river crossings or monsoons by drawing air from inside the vehicle. This fully waterproof unit delivers an impressive 1.56 CFM flow rate for rapid recovery.
  • 25% Duty Cycle Reliable Performance: The 120 PSI system ensures you always have the air you need to make your presence known featuring its oil-less, maintenance-free design with thermal protection.
  • Compact Integration: The low-profile 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 and ensuring a clean, moisture-free air supply for your accessories.
  • Trusted Quality: Don’t settle for a weak factory chirp—get the professional-grade power that thousands of drivers trust.

WHAT'S IN THE BOX?

  • 102-1: Dual XCR2.0 Coated Black Metal 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. Our compact series delivers a sharp, high-frequency blast designed to cut through the thickest noise instantly. Featuring high-pressure 1/4" airline and 3.5" wide bells, these horns produce a piercing scream that commands attention in heavy traffic or loud construction zones.

Classic Chrome
  • Air Horns: Models 102, 130, & 141
  • Universal Air Horn Kits: ProBlaster Models HK2, HK3, & HK4
Stealth Black
  • Air Horns: Models 101, 102-1, 130-1, 141-1
  • Universal Air Horn Kits: ProBlaster Models HK1, HK2-1, HK3-1, HK4-1, & HKUTV
The DEEP Rumble

Train Horn SERIES

Don’t just make noise—make an impact. Engineered with massive 6-7" end bells and heavy-duty drivers, our Train Horns move a staggering volume of compressed air to create a deep, earth-shaking rumble you can feel in your chest and hear down the block. This is the authentic tone of a 40,000-lb locomotive and the ultimate "clear the way" authority that every Truck and SUV deserves.

Classic Chrome

  • Train Horns: Models 500, 501, 502, & 630
  • Train Horn Kits: ProBlaster Models HK6 & HK8
Stealth Black
  • Train Horns: Models 220, 230, & 730
  • Train Horn Kits: ProBlaster Models HK5, HK7, HK9, & HK9-Slim

Professional-grade engineering. Legendary Kleinn Performance.

Too Loud? Too Bad



Air Horn Specifications

Dual Black Air Horns

 

Part Number

Model 102-1

Number of Horns

2 Horns (Single Mount)

Warranty

1-Year Warranty

Construction

XCR2.0 Black Coated Zinc Alloy

Vortex 4 Chrome 12v Solenoid

P/N- 307 w/ ¼” Airline Input

Min / Max Pressure

120 - 150 PSI

Output (dB) @ 150 PSI

149.1 dB

Dimensions

16.5” L x 7.25” W x 3.75” H

Minimum Tank Size

0.5-Gallon

Airline Length and Size Included

12’ of 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:

Compressor Overview & Instructions

Air Compressor Wiring Diagram

Horn Solenoid Wiring Instructions

Air Horn System Overview 

Air System Components

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.