Shart 127H Air Horn Kit

(Non-Weather Sealed Air Supply)


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Hear these horns now!

A fan favorite, our Shart 127H Air Horn Kit is a simple, compact Air Horn Kit that brings enough thunder to make you rumble down under. Our Shart 127H Air Horn Kit is loud, low, and nasty. If you are looking for a deeper tone than your average air horn, but don’t have space or the budget for full-fledged train horns, our Shart 127H Air Horn Kit is a great alternative.

 As a single-bell horn two feet in length, our Shart Air Horn is has a much deeper tone that you typically would find in an air horn. Ever since we let our customers name this horn, people have asked if the name describes the tone of the horn or the effect it has on people within earshot. One thing is for sure, you can’t set off this horn without feeling a little bit dirty! 

Our HornAir 127H Air Source Unit that we paired with our Shart Air Horn with is the perfect match. Just like our Shart Air Horn is designed to be simple and easy to install, our HornAir 127H comes with most of the kit already pre-wired and pre-plumbed, making set-up much faster than larger horn kits. Even though the Shart 127H Air Horn Kit is a compact kit, you still get all the power and performance you could need. Our 1.5-gallon tank supplies enough air to Shart for up to 4 seconds and the tank-mounted Viair 275C Air Compressor recharges the tank from 110-145 PSI in a stunning 35 seconds!   

As with all HornBlasters kits, our Shart  Air Horn Kit comes complete with all required components and detailed instructions.

(Note: Tank mounted air compressors are not fully sealed. For this reason, the manufacturer recommends the tank/compressor system be mounted in the upright position in an enclosed space away from moisture, dirt, debris, etc...)

**Detaching the compressor from the tank will void your warranty on this kit. If you need a solution where the compressor is detached, please look at our 232 and higher model kits. **

  • All-inclusive Air Horn Solution!
  • Complete With Solenoid
  • 120 PSI Air System
  • Max Honk Time: 3 to 5 Seconds
  • Part Number: HK-S25-127H
  • Horn: Shart Air Horn 
  • Horn Length: 25" (635 mm)
  • Weight: 6.5 lb
  • Fitting Size: ½″ Tube
  • Air Source Kit: HornBlasters 127H Air Source Unit
  • Working Pressure: 120 PSI
  • Length: 15.0″ (381 mm)
  • Width: 6.0″ (152.4 mm)
  • Height: 13.0″ (330.2 mm)
  • Net Weight:13.75 lb (6.24 Kg)
  • Air Source Kit Tank: HornBlasters 1.5 Gallon 5 Port Tank
  • Volume: 1.5 gals (6.6 L)
  • ¼″ NPT Ports: 4
  • Length: 15″ (381 mm)
  • Width: 6″ (152.4 mm)
  • Height: 8.5″ (215.9 mm)
  • Weight: 8.65 lb (3.92 Kg)
  • Air Source Kit Compressor: HornBlasters 275C Air Compressor
  • Voltage: 12 volts DC
  • Max Amperage: 18 amps
  • Maximum Duty Cycle: 25% @ 100 PSI
  • Maximum Working Pressure: 150 PSI
  • Length: 6.5″ (165.1 mm)
  • Width: 3.5″ (88.9 mm)
  • Height: 4.5″ (114.3 mm) 
  • Weight: 5.1 lb (2.31 Kg)
0 2.03 10 0 57.5 10
10 1.17 12 1.0 32.0 13
20 1.11 13 2.0 30.0 14
30 1.04 15 3.0 28.5 16
40 1.01 15 4.0 26.5 16
50 0.97 16 5.0 24.5 17
60 0.92 16 6.0 22.5 17
70 0.88 17 7.0 21.5 18
80 0.83 17 8.0 20.0 18
90 0.79 17 9.0 18.5 18
100 0.76 18 10 17.0 17
110 0.72 18
120 0.67 18

* Supply Voltage: 13.8 Volts

0 to 120 PSI 2 min. 10 sec. (±10 Sec.)
90 to 120 PSI 35 sec. (± 5 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
    This Kit is backed with a 1 Year Manufactures 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