HornBlasters Jackass 127H Air Horn Kit


Rated 5.0 out of 5
2 Reviews

Hear these horns now!


You may get some sideways glances and dirty looks, but you will be turning heads with our Jackass 127H Air Horn Kit. We designed this kit from the ground up to give you maximum volume with minimum installation space requirements. With a mid-range tone that could peel the paint off a wall, our Jackass 127H Air Horn Kit packs more punch than even some train horns. 

Our Jackass 127H Air Horn Kit features the notoriously loud Caboose Air Horn, a three-chime Air Horn with a beautiful chrome finish. Extremely small and extremely loud, our Caboose Air Horn is one of the loudest horns we carry, with a blast that sure to wake people up. Just over a foot in length, our Caboose Air Horn is designed to fit in any ride of any size. With the 1/4" valve already pre-installed for you, the set-up has never been easier!

Just as powerful and compact as the horn, our HornAir 127H Air Source Unit we paired the Caboose with makes the Jackass 127H Air Horn Kit a great kit for beginners or vehicles with limited space. With the majority of the kit already pre-plumbed and pre-wired, installation is much quicker and easier than kits with larger horns. Even though our Jackass 127H Air Horn Kit is compact, it still sports some serious performance with its 1.5-gallon tank, providing enough air to give the horns up to a 4 second blast time! The incredibly quick Viair 275C Air Compressor recharges the system from 110-145 PSI in only 35 seconds!  

As with all HornBlasters kits, our Jackass 127H 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...)

  • High Performance
  • Beautiful Chrome Finish
  • Complete With Solenoid
  • Max Honk Time: 5 to 7 Seconds
    • Part Number: HK-B3-127V
    • Horn: HornBlasters Caboose Train Horn
    • Horn Length: 12.500″ (317.5 mm)
    • Horn Width: 6.000″ (152.4 mm)
    • Horn Height: 6.250″ (158.75 mm)
    • Horn Weight: 3.350 lb (1.52 Kg)
    • Horn Fitting: 1/2" Tube
    • Air Source Unit: HornBlasters 127H
    • Working Pressure: 120 PSI
    • Air Source Length: 15.0″ (381 mm)
    • Air Source Width: 6.0″ (152.4 mm)
    • Air Source Height: 13.0″ (330.2 mm)
    • Air Source Weight: 13.75 lb (6.24 Kg)
    • Air Source Kit Tank: HornBlasters 1.5 Gallon 4 Port Tank
    • Volume: 1.5 gal (6.6 L)
    • Ports: 4 x ¼″ NPT Ports
    • Tank Length: 15″ (381 mm)
    • Tank Width: 6″ (152.4 mm);
    • Tank Height: 8.5″ (215.9 mm)
    • Tank 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
    • Compressor Length: 6.5″ (165.1 mm)
    • Compressor Width: 3.5″ (88.9 mm)
    • Compressor Height: 4.5″ (114.3 mm)
    • Compressor Weight: 5.1 lb (2.31 Kg)
    Performance Data / Fill Rates
    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

    Diagrams / Manuals
    Refunds, Returns, & Warranty
    • 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
      This Kit is backed with a 1 Year Manufactures 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.



    Use this product in a safe and responsible manner, at a distance of at least 100 feet from others.

    Proper hearing protection must be worn when using this air horn. Hearing loss or permanent damage may result from unsafe use.

    Never operate this product in a closed environment or close to pedestrians or others.

    It is the consumer's responsibility to comply with local noise ordinances and D.O.T. sound level laws.


    This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.


    average rating 5.0 out of 5
    Based on 2 reviews
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    100% of reviewers would recommend this product to a friend
    2 Reviews
    Rated 5 out of 5
    Review posted

    Horn blasters

    This product is awesome haven’t had not one problem with it and sounds amazing, highly recommend getting yourself one

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    Rated 5 out of 5
    Review posted

    100% worth it

    I was worried for the price that it wouldn't be that loud so I installed it a the first test scared the living hell out of me I highly recommend its loud enough to make someone scream for a good distance and if you want someone to know your there they will be sure to move! Installed on Jeep Wrangler highly recommend this kit!!!!!!

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