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Mother Trucker 127H Air Horn Kit

(Non-Weather Sealed Air Supply)


1 review

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Are you wanting to command the same respect on the road as an 18-wheeler? With our Mother Trucker 127H air horn Kit, even your Mini Coupe can sound like a big rig! This complete air horn kit brings you a larger-than-life sound in a compact and cost-effective package that makes it a solid kit for anyone wanting a simple install or on a tight budget. 

Our Mother Trucker air horn is a 29-inch long metal horn that is the only horn to feature a built-in dust cover, contributing to its unique sound. The mid-range punch that our Mother Trucker air horns produce will leave anyone within earshot wondering how a sound that big came from a kit so compact. Our Mother Trucker air horn comes with the required 1/4 inch solenoid valve already pre-installed to make installation even easier!   

We paired our Mother Trucker air horns with our most popular compact air source unit, the HornAir 127H. Incredibly powerful, yet compact, this fast-fill system supplies 1.5 gallons of air, giving your Mother Trucker Air Horn an impressive  3-5 seconds of continuous blast time. The tank-mounted Viair 275C air compressor fills the tank back up incredibly fast, recharging our 1.5-gallon tank from 90-110 PSI in only 35 seconds! Our HornAir 127H comes pre-wired and pre-plumbed, making sure that your install is quick and painless. 

  • All-inclusive air horn solution!
  • Heavy-duty air compressor for faster fills!
  • 120 PSI Air system
  • Max honk time: 3 to 5 seconds

(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... Failure to mount this product as directed will void the warranty)

**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 models. **

  • Part Number: HK-MT29-127H / HK-MT29K-127H
  • Operating Pressure: 120 PSI
  • Restart Pressure: 90 PSI
  • Voltage: 12-Volt DC
  • Air Inlet Fitting: 1/2" Tubing
  • Horn Length: 29" (736.6 mm)
  • Horn Width: 8.75" (222.25 mm)
  • Horn Height: 4.75" (120.65 mm)
  • Horn Weight: 7.7 lb
  • Air Source Unit: HornBlasters 127H air source unit
  • Air Source Length: 15.2″ (381 mm)
  • Air Source Width: 5.9″ (152.4 mm)
  • Air Source Height: 12.8″ (330.2 mm)
  • Air Source Weight: 13.75 lb (6.24 Kg)
  • Air Tank: 1.5-gallon 4 port air tank
  • Volume: 1.5 Gal (6.6 L)
  • Air Source Kit Compressor: 275C air compressor
  • Max Amperage: 18 amps
  • Maximum Duty Cycle: 25% @ 100 PSI
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 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

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Brandon B.
United States United States

Could be louder

Nicely packaged, Installation was a breeze. I just wish it was LOUDER.