King 6 540 Train Horn Kit

(Fastest Filling to Continue Honking!)


1 review

Add Viair Air Compressor Bracket Tooltip
The Viair Air Compressor Bracket will allow you to mount your compressor upright and is compatible with Viair Compressor models 275C-485C.
Add Dual Viair Air Compressor Brackets Tooltip
The Viair Air Compressor Bracket will allow you to mount your compressor upright and is compatible with Viair Compressor models 275C-485C.
Add HornBlasters Dixie Musical Horn Tooltip
The Song of the South is available for your vehicle with our Dixie Musical Air Horn System.
Add Electric Drain Valve Kit Tooltip
This kit has everything you need to drain your tank from the push of a button from inside the cab!
Add 220 PSI Digital Pressure Gauge Tooltip
Using a tank mounted sensor wired directly to your gauge, our 220-PSI rated Digital Air Pressure Gauge delivers unparalleled accuracy with microprocessor stabilized readings.
Add AirChime Mounting Bracket Tooltip
This heavy duty pedestal mount gives you the ability to install the horn with enough clearance to connect airline directly to the bottom of the base!
Add 400C Dual Air Compressor Upgrade Tooltip
Double your performance with the 400C Dual Compressor upgrade. Recharge your tank faster and honk more often.
Add Gold Extended Warranty Tooltip
1 year add-on to existing warranty. Does NOT cover accidental damage, no advanced replacement.
Click here for more information!
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Add Platinum Extended Warranty Tooltip
2 year add-on to existing warranty. DOES cover accidental damage and advance replacement.
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Hear these horns now!

So you want to be ridiculously loud but you don’t want to sound like every other train horn you hear? Let us introduce you to our King 6 540 train horn kit. Six massive die-cast bells come together to bring you a train horn sound that you will not find anywhere else. Want to really stick out in a crowd? This is how you do it. We paired our King 6 with our fastest-filling onboard air kit to make sure that your King 6 train horn is always ready to get your point across.

Designed to give you the same power and sound of an authentic locomotive horn, our King 6 is made using an investment casting process that gives these horns superior volume and tone. We went a step further and added another bell to the mix, giving you SIX distinct tones that come together to form a sound that nightmares are made out of.  With stainless steel internals and backed by a lifetime warranty, not only are they designed to look and sound like the real deal, but will last just as long, if not longer.

Our HornAir 540 onboard air system we paired our King 6 with is the fastest-filling system in its class, featuring Viair’s 400C air compressor. Our King 6 540 train horn kit will give you 5 continuous ear-splitting seconds of blast time and will recharge from 110 to 150 PSI in only 1 minute and 40 seconds!  Like all HornBlasters kits, our King 6 540 includes all required components and instructions.

*These Horns should not be stripped and Powder Coated!!**

**Manufactured in the United States by USA Train Horn**

  • Unique 6 bell configuration
  • Powdercoated black for durability
  • Stainless steel diaphragm 
  • Pre-tuned one-piece bell construction
  • Made in the USA! Quality does matter!
  • Heavy-duty 400C air compressor for faster fills!
  • Stainless steel liquid-filled air pressure gauge
  • Capable of filling tires in emergency situations!
  • Extra-large 5-gallon air tank
  • Max honk time: 5 seconds
  • Part Number: HK-H6-540
  • Operating Pressure: 150 PSI
  • Restart Pressure: 110 PSI
  • Voltage: 12-Volt DC
  • Horn: King 6 train horn
  • Horn Length: 19" (48.26 cm)
  • Horn Width: 35" (88.90 cm)
  • Horn Height: 9.5" (24.13 cm)
  • Horn Weight: 38 lb (17.23 Kg)
  • Horn Air Inlet: 1/2" NPT
  • Tank: HornAir 5-gallon 8 port air tank
  • Tank Length: 20.5" (520.7 mm)
  • Tank Diameter: 9.5" (241.3 mm)
  • Tank Height (With Legs): 11.5" (292.1 mm)
  • Tank Weight: 20 lb (9.07 Kg)
  • Tank Ports: x7 1/2" NPT, x1 3/4" NPT
  • Air Compressor: Viair 400C air compressor
  • Air Flow: 2.54 CFM at Free Flow
  • Average Fill Time: 1 Min 40 Sec
  • Max Amperage: 26 amps
  • Maximum Duty Cycle: 33% @ 100 PSI
  • Maximum Working Pressure: 150 PSI
  • Air Compressor Length: 9.0" (228.6 mm)
  • Air Compressor Width: 4.0" (101.6 mm)
  • Air Compressor Height: 7.00" (177.8 mm)
  • Air Compressor Weight: 8.00 lb (3.63 Kg)

5-Gallon Air Tank Dimensional Drawing

0 2.62 16 0 74.0 16
10 2.39 18 1.0 65.0 20
20 2.21 20 2.0 60.0 23
30 2.11 22 3.0 56.0 25
40 2.01 24 4.0 53.0 27
50 1.93 25 5.0 49.0 28
60 1.84 26 6.0 46.0 28
70 1.73 27 7.0 42.0 28
80 1.65 27 8.0 38.0 28
90 1.52 27 9.0 35.0 27
100 1.45 27 10.0 31.0 27
110 1.35 27
120 1.26 27
130 1.19 27
140 1.08 27
150 1.01 26

* Supply Voltage: 13.8 Volts

0 to 145 PSI 4 min. 50 sec. (± 10 sec.)
110 to 145 PSI 1 min. 40 sec. (± 05 sec.)

* Supply Voltage: 13.8 Volts

  • Money-Back Guarantee/Refund Policy
    All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by our One-Year Manufacturer's Defect Warranty!
  • Satisfaction Guarantee offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.

Warnings & Notices

Hearing Loss warning icon
Hearing Protection Required

This product produces extreme loudness. Proper hearing protection must be worn at all times during its operation. Hearing loss or permanent damage may result from unsafe use. Use this product in a safe and responsible manner and at a distance of at least 100 meters from others. Never operate this product in a closed environment, in close proximity to living beings, or where prohibited by law.

Safety warning icon

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

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