Conductor's Special 2OB2 Train Horn Kit

(Insane Filling Speed & Constant Duty)

HK-S4-2OB2

Add Wireless Activation Remote
Activate your horn wirelessly with our handy RF transmitter.
+$39.99
Add Tire Inflation Kit
Our Tire Inflation Kit includes a 30' Coil Hose, Tire Inflation Gun, & Air Relocation Kit!
+$79.99
Add 1/4″ Electric Drain Valve Kit
This kit has everything you need to drain your tank from the push of a button from inside the cab!
+$64.99
Add 220 PSI Digital Air Pressure Gauge
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.
+$149.99
Add Shocker XL 6 Horn Upgrade
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!
+$149.99
Add Shocker XL Train Horn Mount
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.
+$149.99

Hear these horns now!

FOR THOSE ABOUT TO HONK, WE SALUTE YOU. 

Our Conductor’s Special 2OB2 fast-fill train horn kit was designed for people who like to blast loud and often. We paired our insanely loud Shocker XL Train Horns with one of the fastest-filling onboard air systems available. This lets you to blast your horns nearly rapid-fire for 7 seconds at a time with only a 29 second recharge time!

The 2OB2 kit was designed for use with our Shocker XL train horns to bring you the full power and tone of an actual locomotive. Our horns are constructed from an ultra-durable fiberglass-reinforced ABS composite and our diaphragms are made from stainless steel. We also stand behind them with a lifetime warranty against manufacturer defects. Our Conductor’s Special 2OB2 train horn kit gives you one of the most reliable and easy to install train horns you can buy.

Sharing the spotlight for this kit is the speedy Air Zenith OB2 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, allowing you to recharge your tank in less than 30 seconds! Along with our water-resistant 2-gallon tank, this kit was designed to be fast and loud. The 2OB2 kit is also capable of being used for onboard air in case of a road emergency that requires you to inflate a tire, or to use for air tools for example.

CUSTOMER VIDEO REVIEW OF THESE HORNS

This video shows our Shocker XL train horn in a third-party decibel test alongside your typical budget "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: 7 seconds
  • It can be heard from miles away!
  • Part Number: HK-S4-2OB2
  • 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: 2 gallon tank
  • Rated Pressure: 300 PSI
  • Burst Pressure: 800 PSI
  • Length: 17" (431.8 mm)
  • Diameter: 6" (152.4 mm)
  • Height: 7" (177.8 mm)
  • Weight: 10 lb (4.54 Kg)
  • Compressor: Air Zenith OB2 air compressor
  • Average Fill Time: 1 Min 10 Sec
  • Voltage: 12 volts DC
  • Air Flow: 4.25 CFM at Free Flow
  • Max Amperage: 35 amps
  • Maximum Duty Cycle: 100% @ 200 PSI
  • Maximum Working Pressure: 200 PSI
  • Compressor Length: 13.0″ (330.2 mm)
  • Compressor Width: 6.0″ (152.4 mm)
  • Compressor Height: 7.50″ (190.5 mm)
PSI CFM A
0 4.25
0
10 4.25
25.5
20 4.25
28
30 4.25
29.2
40 3.22
30.5
50 3.13
31.8
60 3.13
32.9
70 2.95
33.2
80 2.87
34
90 2.66
34.4
100 2.47
34.9
110 2.36
35
120 2.21
35
130 2.08
35
140 1.97
34.9
150 1.83 34.9

* Supply Voltage: 13.8 Volts

2.0 GALLON TANK FILL RATE
0 to 150 PSI 1 min. 52 sec. (± 05 sec.)
110 to 150 PSI 29 sec. (± 03 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 HornBlasters.com 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.
  • HornBlasters.com Satisfaction Guarantee
    HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments
    HornBlasters.com will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at HornBlasters.com 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
Warning

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 www.p65warnings.ca.gov.