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LABOR DAY SALE • 15% OFF SITEWIDE • PRICES AS MARKED
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LABOR DAY SALE • 15% OFF SITEWIDE • PRICES AS MARKED
KL HK7
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WHY THE BEAST RULES ITS CLASS!
For the driver who demands a professional-grade locomotive blast without the investment of a full-metal HK9 systems, "The Beast™" Model HK7 has arrived. Engineered to outperform everything in its category, the high-impact ABS construction of the Model 230 Beast™ horns delivers a sharp, aggressive harmonic chord. The HK7 cuts through road noise with surgical precision, providing the signature Kleinn locomotive-style blast that defines a true statement of authority.
THE PRACTICAL PNEUMATIC POWERHOUSE
The Model HK7 delivers elite performance without the bulk. Driven by the industry-exclusive Model 6350RC Waterproof Air Compressor, this system is more than just a horn—it’s a professional-grade onboard air command center. Whether you are delivering a deafening blast, inflating 35” tires, managing air bags, or engaging lockers, the HK7 provides high-pressure pneumatic power exactly when you need it.
VERSATILE MOUNTING OPTIONS
The Model HK7 is a lightweight, versatile system featuring the popular Model 6350RT 3-Gallon Air Tank internally coated for superior corrosion resistance and designed for a high-capacity/small-footprint balance, this tank is perfect for easy frame-rail or under-body mounting. For maximum installation flexibility, the detachable composite ABS horns can remain on the included flat rack mounting plate or be removed and mounted individually to fit tight spaces.
THE VERDICT: The Model HK7 "Beast™" is the definitive choice for drivers who demand a professional-grade blast and rock-solid reliability in a package size designed to fit almost any truck or SUV. The Beast delivers the authentic roar of locomotive excellence without the "Demon" HK9 or HK9-Slimline price tag.
BOOST YOUR BLAST: 30% MORE OUTPUT
Unleash the power of the Beast™ 230 Train Horns!
Push the 230 Beast™ horns to the edge of sanity with the Ultra BlastMaster™ (Model 6885). This upgrade allows you to unleash the fury of 30% more power by adding two additional Model VX6003 high-flow solenoids and swapping the standard 1/4" tubing for a massive 1/2" airline.
The result is bone-rattling decibel levels that demand respect across entire city blocks. Experience the 230 Beast in its most aggressive form—because when it comes to the ultimate train horn, "TOO LOUD" happens to be just right.
TOO LOUD? TOO BAD!
The Screamer
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.
The Deep Rumble
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.
Professional-grade engineering. Legendary Kleinn Performance.
TRAIN HORN SPECIFICATIONS
| Triple ABS Train Horns | |
|---|---|
| Part Number | Model (230) “The Beast" |
| Number of horns | 3 (Flat Rack or Individual Mount) |
| Warranty | 1-Year Warranty |
| Construction | Composite Black ABS Trumpets |
| 12-Volt Brass Solenoid | P/N- VX6003 (51438 & 53814N Fittings Incl.) |
| Max Pressure | 150 PSI |
| Output (dB) @ 150 PSI | 155.1dB (156.9 dB w/ 6885 Upgrade Kit) |
| Dimensions (On Flat Rack Bar) | 18.5” L x 18” W x 7” H |
| Dimensions (Each Horn) | 18.5” Lg. – 16.5” Med. - 14.5” Sm. |
| Minimum Tank Size | 2.5-Gallon |
| Airline Length - Size | 12’ of ¼” OD Airline |
| Upgrade kit compatibility | Use Model 6885 |
AIR COMPRESSOR SPECIFICATIONS
| Heavy-Duty Air Compressor | |
|---|---|
| Part Number | Model (6350RC) |
| Warranty | 1-Year |
| Compressor Type | Waterproof Sealed, Oil-less |
| Motor Type | Permanent Magnetic Motor |
| Waterproof & Submersible | Sealed Internally (Must install “Snorkel” Kit) |
| Compressor “Snorkel Kit” | Remote Air Filter Relocation Kit - 12' 3/8” Airline |
| Voltage | 12-Volt DC |
| Duty Cycle | 100% @ 100 PSI (@ 72° F) |
| Flow Rate | @ 0 PSI (13.8 Volts): 2.11 CFM |
| Max Pressure | 150PSI |
| Max Amp Draw | 21 Amps |
| Dimensions | 9.25” L x 4” W x 6.50” H |
| Mounting Holes | 7.32” L x 3.31” W (5mm Diameter) |
| Mounting Note | Mountable in any position except upside down |
| Pressure Switch | P/N 2151 (Works with 52175 Safety Valve) |
AIR TANK SPECIFICATIONS
| 3-Gallon Air Tank | |
|---|---|
| Part Number | Model (6350RT) |
| Warranty | 1-Year |
| Tank Capacity | 3-Gallon |
| Construction | All Steel Design (Gloss Black Epoxy Finish) |
| Internal Coating | Cortec Internal Anti-Corrosion Coating |
| Mounting Legs | 2 Legs w/ 4 Mounting Points |
| Air Tank Ports | 6 - 1/4" NPT Ports & 1 - 1/2" NPT Ports |
| Mounting Hardware | Fitting Pack - 4 Bolts, Nuts, Washers |
| Max Pressure | 200 PSI |
| Dimensions | 21” L x 8” W x 10” H |
AIR TANK FILL RATE DETAILS
| Tank Capacity | Tank Pressure Range | Tank Fill Rate |
|---|---|---|
| 2.5 Gallon | 0 - 150 PSI | 4 Min. 35 Sec. (+/- 10 Sec.) |
| 2.5 Gallon | 110 - 150 PSI | 59 Sec. (+/- 5 Sec.) |
| 5.0 Gallon | 0 - 150 PSI | 9 Min. 15 Sec. (+/- 10 Sec.) |
| 5.0 Gallon | 110 - 150 PSI | 2 Min. 25 Sec. (+/- 5 Sec.) |

$713.95
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.
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.
This warranty does not cover damage or failure resulting from:
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.
To request warranty service, email warranty@kleinn.com with the following information:
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.
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.
Merchandise that has been worn, used, or altered will not be accepted for return or exchange.
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.