Shocker XL 2 Gallon Train Horn Kit

More Blow for your Dough!


5 reviews

Add Wireless Activation Remote Tooltip
Activate your horn wirelessly up to 100 yards away with our handy RF transmitter.
Add Tire Inflation Kit Tooltip
Our Tire Inflation Kit includes a 30' Coil Hose, Tire Inflation Gun, & Air Relocation Kit!
Add 1/4″ 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 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 Train 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 Spare Tire Delete Bracket +$219.99
Add Spare Tire Delete Dual Tank Bracket +$324.99
Add Gold Level Extended Warranty See price in cart
Add Platinum Level Extended Warranty See price in cart

Hear these horns now!


The Shocker XL 2 gallon train horn kit will blow you away with its price and sound! This is the best value we have for a full Shocker XL based kit. If you are asking yourself "what's the loudest horn you make?" and also "what's the best value for the money?" you've just found the answer. 

  • The Loudest kit we make, be heard for miles!
  • Includes a 2-gallon tank, compressor and all necessary hardware
  • 4-Second honk time, 65-second recovery.
  • The Shocker horns in the kit are backed by our lifetime manufacturer's warranty. All other items would be covered per standard warranty guidelines (1 year)

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!
  • High-efficiency & extremely loud
  • Stainless steel diaphragms won't rust!
  • Manifold-less design for flexible installation
  • All-inclusive train air horn solution!
  • Heavy-duty compressor for faster fills!
  • All standard mounting hardware
  • Max honk time: 4 to 6 seconds
  • It can be heard from miles away!
  • Part Number: HK-S4-2HB
  • Horn: Shocker 4 train horn kit
  • Material: High-impact 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)
  • Flare: 5″ (127 mm)
  • Weight: 4.5 lb (2.04 Kg)
  • Fitting Size: ⅛″ M NPT
  • Tank: HornAir 2 gallon tank
  • Tank Length: 17" (431.8 mm)
  • Tank Diameter: 6" (152.4 mm)
  • Tank Height: 7" (177.8 mm) (With Legs)
  • Tank Weight: 10 lb (4.54 Kg)
  • Working Pressure: 150 PSI
  • Compressor Length: 8.75" (222.25 mm)
  • Compressor Width: 4" (101.6 mm)
  • Compressor Height: 6.6" (167.64 mm)
  • System Max Amp Draw: 25 Amps

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 product's 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
    Our Shocker XL train horns are backed by our lifetime manufacturer's defect warranty and the rest of the components in this kit are backed by a 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 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 5 Reviews
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Best trains horns around

The horn are very well made and very very loud. By far the shockers or the best train horns and are worth every dollar

Kyle S.
United States United States

Shocker XL kit

The kit is great, comes with everything you need to blow your ear drums off. Only thing negative is the instructions are very difficult to understand even for that mechanically inclined.

Michael P.
United States United States

Absolutely fantastic!

I am 100% happy! I was a little leery about spending more than the 'ebay' horns but after seeing the YouTube review and comparing warranties, I took the plunge. When I received my order I was amazed at how complete it was and the quality of the components. Then I installed it and the first time I hit the button, holy ****! The YouTube video doesn't even come close to the volume and clarity of the horns. Well worth the money but only if you want an extremely loud, great sounding, quality horn set.

HornBlasters Shocker XL 2 Gallon Train Horn Kit ReviewHornBlasters Shocker XL 2 Gallon Train Horn Kit ReviewHornBlasters Shocker XL 2 Gallon Train Horn Kit Review
Gregory A.
United States United States


The horns showed up yesterday before they were supposed to which had me very surprised. The package was done up right. First thing you see when you open the box is a parts list which is awesome so as you go though the box you can check off the parts list . Awesome package job will let you guys know how the installation goes today


Great quality product

Fast shipping and high quality product. Great job horn blasters.

HornBlasters Shocker XL 2 Gallon Train Horn Kit Review
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