Conductor's Special 238A Train Horn Kit

4-Second Honk Time & Weather Resistant


4 reviews

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 Wireless Activation Remote Tooltip
Activate your horn wirelessly up to 100 yards away with our handy RF transmitter.
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 220 PSI 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 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 Gold Level Extended Warranty See price in cart
Add Platinum Level Extended Warranty See price in cart

Hear these horns now!

Our Conductor’s Special Kits are designed to give you the most out of your train horns, but that’s not all they can do! With our Conductor’s Special 238A train horn kit, you get a complete kit that can not only provide all the power you need for your horns but is already optimized for tire inflation!

Airing up anything from tires to inflatable toys has never been more convenient with our Conductor’s Special 238A train horn kit. We paired our weather-resistant 2-gallon tank with Viair’s 380C air compressor to bring you a constant duty system that can handle any light pneumatic jobs you can throw at it. While the Conductor’s Special 238A train horn kit is not as fast-filling as other systems, but it is a workhorse of an air system with a 100% duty cycle @ 100 PSI, still giving you a refill time of just under a minute.

Our Conductor’s Special 238A train horn kit is still a train horn kit at its core, sporting our most popular horns, our Shocker XL train horns. Giving you the raw power and volume of an authentic locomotive horn while being much more compact and easier to install than bigger train horn kits, our Conductor’s Special 238A train horn kit gives you a huge sound in a compact system.

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 almost away!
  • Part Number: HK-S4-238A
  • 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
  • Operating Pressure: 150 PSI
  • Tank: HornAir 2 Gallon Tank
  • Tank Length: 17″ (431.8 mm)
  • Tank Diameter: 6″ (152.4 mm)
  • Tank Height: 7″ (177.8 mm)
  • Tank Weight: 10 lb (4.54 Kg)
  • Compressor: Viair 380C Air Compressor
  • Average Fill Time: 1 Min 30 Sec
  • Voltage: 12 volts DC
  • Air Flow: 1.58 CFM at Free Flow
  • Max Amperage: 23 amps
  • Maximum Duty Cycle: 55% @ 100 PSI
  • Compressor Length: 9.0″ (223.2 mm)
  • Compressor Width: 4.0″ (101.6 mm)
  • Compressor Height: 6.75″ (171.5 mm)
  • Compressor Weight: 6.95 lb (3.15 Kg)

2-Gallon Air Tank Dimensional Drawing

0 1.58 12 0 44.7 12
10 1.45 13 1.0 38.1 13
20 1.22 14 2.0 33.3 15
30 1.17 15 3.0 30.6 16
40 1.09 16 4.0 29.1 17
50 1.06 17 5.0 27.1 18
60 1.02 17 6.0 25.3 19
70 0.97 18 7.0 24.0 20
80 0.92 18 8.0 22.4 21
90 0.88 19 9.0 21.0 23
100 0.85 20 10.0 19.5 21
110 0.81 21 11.0 18.2 20
120 0.78 22 12.0 16.7 19
130 0.74 23 13.0 15.2 19
140 0.71 21 14.0 13.5 18
150 0.67 20
160 0.64 20
170 0.60 19
180 0.57 19
190 0.53 19
200 0.49 18

* Supply Voltage: 13.8 Volts

0 to 150 PSI 2 min. 48 sec. (± 10 sec.)
110 to 150 PSI 1 min. 05 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
    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 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 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 4 Reviews
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Awesome for everything!

Bought this mainly for the onboard air I've used it multiple times to air up my tires after off-roading no broblems what so ever the hot is also a perk to test the air pressure and get people attention that drive crazy!

HornBlasters Conductor's Special 238A Train Horn Kit ReviewHornBlasters Conductor's Special 238A Train Horn Kit Review

Best Truck Mod Ever!

This kit sets you apart from other trucks, loud and proud. Scratch that, VERY loud. You get used to the sound but others don't. The customer service is great, I had trouble with a product not being shipped and they refunded me and sent it along with stickers for their apologies. Would recommend horn blasters for any project that wants to stand out of the crowd.


Great! _�ԍ_ُ�

Absolutely love them, didn't wanna spend the money at first but I'm so glad I broke down and got them, love that you can air up tires and use air tools. Great company all around _�ԍ_ُ�



First off I'd like to say beyond great customer serivce! Got what I needed, quick after ordering, and very, very impressed with the horns so far! I don't know if I'll ever consider buying horns from anyone else but HornBlasters _���_ُ�

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