Conductor's Special 240 Train Horn Kit



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This model has been discontinued. You can find similar models here!

Our Conductor’s Special 240 train horn kit was designed for people who don’t like to wait to blast their horns. We paired our insanely loud Shocker XL train horns with one of the fastest-filling onboard air systems you can buy, allowing you to blast some of the loudest horns available as much and as often as you can get away with!

For an onboard air system optimized from the ground up for train horns, there are no better horns to pair it with than our Shocker XL train horns. Hand-tuned to the US Train Horn Chord specifications, our Shocker XL train horns in our Conductor’s Special 240 train horn kit give you the authentic tone of a locomotive with the volume to match. Constructed from an ultra-durable fiberglass-reinforced ABS composite with stainless-steel diaphragms and backed by a lifetime warranty against manufacturer's defects, you can rest easy knowing this is the last train horn kit you will ever have to purchase.

What sets the Conductor’s Special 240 loud train horn kit apart from our other Conductor’s Special horn kits is the speedy Viair 400C air compressor. While it may not have as long of a duty cycle as other compressors in its class, it is one of the fastest-filling compressors available, recovering your tank in less than 50 seconds! Along with our water-resistant 2-gallon tank providing our Shocker XL Horns with enough air to honk for up to 3-5 seconds continuously, you get one of the loudest and fastest train horn kits you can buy.

  • The loudest horns we manufacture, be heard for miles!
  • Stainless steel internals combined with the fiberglass-reinforced ABS construction ensures these horns are extremely durable through all conditions!
  • Individually mounted horns for flexible installation
  • All-inclusive train horn kit with everything needed for installation
  • 150 PSI 2-gallon air system provides 3-5 seconds of honk time
  • Capable of filling tires in emergency situations

Please note: The 6 horn upgrade kit does NOT include the extension brackets to connect to our STDK bracket or Shocker XL horn mount.


This video shows our Shocker XL Train Horn in a third-party decibel test alongside your typical "air horn" honked side-by-side at the same pressure. As you can see, no one even comes close to the insane volume and tone of our Shocker XL Train Horns!
  • Part Number: HK-S4-240
  • Operating Pressure: 150 PSI
  • Restart Pressure: 110 PSI
  • Voltage: 12-Volt DC
  • Horn: Shocker XL train horn
  • Horn Material: High-impact fiberglass reinforced ABS
  • Horn Measurements
    № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm)
    № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm)
  • Horn Flare: 5″ (127 mm)
  • Air Tank: HornAir 2-gallon 6 port air tank
  • Tank Length: 17" (431.8 mm)
  • Tank Diameter: 6" (152.4 mm)
  • Height: 8" (203.2 mm)(With Legs)
  • Weight: 10 lb (4.54 Kg)
  • Compressor: Viair 400C air compressor
  • Air Flow: 2.62 CFM at Free Flow
  • Average Fill Time: 42 Sec
  • Max Amperage: 28 amps
  • Maximum Duty Cycle: 33% @ 100 PSI
  • Compressor Length: 9.0" (228.6 mm)
  • Compressor Width: 4.0" (101.6 mm)
  • Compressor Height: 7.00" (177.8 mm)
  • Compressor Weight: 8.00 lb (3.63 Kg)
0 to 150 PSI 1 min. 52 sec. (± 05 sec.)
110 to 150 PSI 39 sec. (± 03 sec.)
* Supply Voltage: 13.8 Volts

2-Gallon Air Tank Dimensional Drawing

  • 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
    Shocker XL train horns are backed by our lifetime Manufacturer's defect warranty. The Viair air compressor is backed with a 1-year Manufacturer's defect warranty. The rest of the components are backed with a 2-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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Customer Reviews

4.9 Based on 16 Reviews
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Filter Reviews:
John S.
United States United States

Great Customer Service and Products

Amazing and prompt to al my questions. Will suggest to others.


Very nice!

Shipping was fast! Everything came in one big box. Everything was packaged very good within that one large box. But I didn’t do the research on how much it would cost to install the train horns. It cost almost 700-800 dollars to get them professionally installed. So my horns sat in my basement for a while. Installation took 7 hours. At the shop all day pretty much. But I expected that. Now that I got them in , they are very nice add on to my truck! They sound very loud and sounds last for while a bit. Love them!!!!

HornBlasters Conductor's Special 240 Train Horn Kit ReviewHornBlasters Conductor's Special 240 Train Horn Kit ReviewHornBlasters Conductor's Special 240 Train Horn Kit Review
Justin B.
United States United States

Over all, I’m very satisfied

I’m only having a problem with the 1/4” NPT Drain **** Fitting not working, but other than that the horns are working perfect!

Rich M.
United States United States


Had this kit for 6 years. Installed myself. I would recommend to everyone.


Conductors special 240

This system is really loud. Pulled up beside a friend of mine in a open jeep and scared him. He said he knew I was coming but wasn't ready for the train horn. Mounted the three small horns behind the grille but had to mount the large one behind the front bumper on my 2019 Chevy 2500 HD Duramax. Mounted the compressor and air tank in front of the driver side wheel well of the bed. I ran the air line on the driver side to keep it away from the exhaust. Put a momentary switch by the cigarette lighter outlet in the console to activate the horns. Works great. Took me a day and a half but I built a frame to mount the compressor on top of the air tank. Took a while to figure out how to position the horns behind the grille.

HornBlasters Conductor's Special 240 Train Horn Kit ReviewHornBlasters Conductor's Special 240 Train Horn Kit Review