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Conductor's Special 244 Nightmare Edition Train Horn Kit

(This Kit does both! Honking & Capable Onboard Air Unit)


111 reviews

Suggested Addons
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The Viair Air Compressor Bracket will allow you to mount your compressor upright and is compatible with Viair Compressor models 275C-485C.
Add Tire Inflation Kit Tooltip
Our Tire Inflation Kit includes a 30' Coil Hose, Tire Inflation Gun, Air Relocation Kit, Blow Gun, & a complete Air Accessory Fitting Kit!
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 Digital Air 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 Shocker XL 6 Horn Upgrade Tooltip
Upgrade your Shocker XL Train Horns to a 6 horn set up. With the 2 extra bells and new 6 way manifold, you can now get a little bit more out of the Shocker XL!
Add Shocker XL Horn Mount Tooltip
Already have a spot for your onboard air system, but not sure where to mount the horns? Take the guesswork out of installation with our Shocker horn mount.
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.
Click here for more information!
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A train horn kit that can do it all and look good doing it, our Conductor’s Special 244K Nightmare Edition Train Horn Kit has been the go-to train horn kit for years. With enough volume to wake the dead and enough power to handle most light pneumatic jobs you can throw at it, our Conductor’s Special 244K is one of our most well-rounded kits and a solid addition to any vehicle. 

Our HornBlasters Conductor’s Special 244K features our legendary Shocker XL train horns. Hand-tuned to the exact specifications of the US Train Horn Chord and packing just as much power as an authentic train horn, our Shocker XL train horns are the closest you can get to the real deal without having to spend thousands on a retired locomotive train horn. Constructed from an ultra-durable fiberglass-reinforced ABS composite with stainless-steel diaphragm and backed by a lifetime warranty against manufacturer defects, you get a train horn that is not only insanely loud but ridiculously durable as well. 

Of course, for horns of this caliber, you need an onboard air system that will keep up. With enough air to blast our Shocker XL train horns for up to 6 seconds, as well as handles most pneumatic applications such as air tools or tire inflation. Our Nightmare edition is powered by a constant-duty air compressor, that recovers our 2-gallon 6-port air tank in a little over a minute. With hardware and instructions included, you get everything you need to get back out on the road and honking. 

  • 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 and using small air tools

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-S4-244K
  • 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)
  • Tank Height: 8″ (203.2 mm)
  • Tank Weight: 10 lb (4.54 Kg)
  • Average Fill Time: 50 Sec
  • Max amperage: 25 Amps
  • Maximum duty cycle: 100% @ 100 PSI / 50% @ 200 PSI
  • Flow Rate @ 0 PSI: 1.75 CFM
  • Maximum working pressure: 200 PSI
  • Compressor length: 10.75″ (273.05 mm)
  • Compressor width: 4″ (101.6 mm)
  • Compressor height: 6.75″ (171.45 mm)

2-Gallon Air Tank Dimensional Drawing

0 to 150 PSI 2 min. 7 sec. (± 10 sec.)
110 to 150 PSI 39 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
    Shocker XL train horns are backed by our lifetime 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.

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

Customer Reviews

5.0 Based on 111 Reviews
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Gonna hear this!

This kit is exactly what I wanted! This thing screams and we’ll be heard no matter what. As usual, the customer service from the folks at HornBlasters is great and answered all my questions. This is the second kit I’ve bought from these guys and I won’t consider any other source for our horn needs! Thanks again guys!


Conductors Special 244 Nightmare

This thing is awesome! Easy install with the spare tire delete bracket. It’s loud!


Will fit anything!!

For those that have questions about fitment ANYTHING is possible! I installed these bad boys on my mini Jeep. And boy are they LOUD!! Nothing like sitting just over the horns and hitting that button! I worked with hornblasters on where I needed to mount the tank and they helped me out in every single way possible, even sending me extra fittings because I needed to mount the tank vertically. Matt and the team at hornblasters have been amazing! My horns have been installed for about 8 months now and are still continuing to exceed my expectations!! If you are concerned about space don't be. I probably have the biggest set of horns on the smallest vehicle possible. I guarantee they can and will fit whatever application you are looking to install them on

HornBlasters Conductor's Special 244 Nightmare Edition Train Horn Kit ReviewHornBlasters Conductor's Special 244 Nightmare Edition Train Horn Kit ReviewHornBlasters Conductor's Special 244 Nightmare Edition Train Horn Kit ReviewHornBlasters Conductor's Special 244 Nightmare Edition Train Horn Kit Review
Jeffrey M.
United States United States

Hornblasters spare tire delete kit

Horns are super loud! Love them. Definitely the uograde you didn’t know you need

Darrell M.
United States United States

Blown Away

It was 1000%. Just as loud as a train horn or louder. One of the mechanics at the shop said he was going to get a Horn Blaster. The product advertises itself. Completely Satisfied. Very helpful, Friendly Staff.