HornBlasters Conductor's Special 127H Train Horn Kit


  • Short on space? We have the best solution! This train horn kit features the compact HornBlasters 127H 120 PSI High Flow Air Source Kit. The air source kit takes up about a half a cubic foot of space and matched with our HornBlasters Shocker horns, you are getting one of the most compact horn systems on the market. Just because you are getting a compact horn system doesn’t mean you have to sacrifice sound or product quality. The HornBlasters Shocker horns are made with a fiberglass reinforced ABS plastic and all stainless steel internals to conquer anything that you may throw at these horns. The HornBlasters 127H Air Source Kit is made with the highest quality materials and gives you an astounding 1.5 gallons of air at 120 PSI.

    Hear these horns now!

    Customer Video Review of These Horns

    These are the exact same horns featured in this kit compared to other horns. The tests show the horns honked side by side at the same pressure.

    Review of Shocker Horns Compared to a "Triple Chrome Horn"

    1. High-efficiency & Extremely Loud
    2. Stainless Steel Diaphragms Won't Rust!
    3. Manifold-less Design for Flexible Installation
    4. All-inclusive Train Air Horn Solution!
    5. Heavy Duty Compressor!
    6. All Standard Mounting Hardware
    7. Max Honk Time: 5 to 7 Seconds
    8. Can be heard from almost 4 Miles away!
    1. Shocker S4 Train Horns
    2. HornBlasters 1.5 Gallon Air Supply Unit
    3. HornBlasters 90/120 PSI Pressure Switch
    4. Dual Filter Intake Assembly
    5. Air Filter Cartridges
    6. 10 ft of 5/16 in D.O.T. Approved Airline
    7. 17 ft of 1/2 in D.O.T. Approved Airline
    8. 17 ft of 10ga & 18ga Gauge Power Wire
    9. 1/2 in NPT Electric Solenoid Valve
    10. Brass NPT Fittings Kit Including Safety Valve and Blowoff
    11. Wiring & Plumbing Kit
    12. Mounting Hardware
    13. Detailed Instructions
    14. Earplugs
      1. Part Number: HK-S4-127H
      2. Horn: Shocker 4 Train Horn Kit
      3. Material: High-Impact ABS
      4. Horn Measurements
    № 1 19.5″ 495.3 mm) № 2 16.25″ (412.75 mm)
    № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm)


    1. Flare: 6.5″ (165.1 mm)
    2. Weight: 4.5 lb (2.04 Kg)
    3. Fitting Size: ⅛″ M NPT
    4. Air Source Unit: HornBlasters 127H
    5. Working Pressure: 120 PSI
    6. Air Source Length: 15.0″ (381 mm)
    7. Air Source Width: 6.0″ (152.4 mm)
    8. Air Source Height: 13.0″ (330.2 mm)
    9. Air Source Weight: 13.75 lb (6.24 Kg)
    10. Air Source Kit Tank: HornBlasters 1.5 Gallon 4 Port Tank
    11. Volume: 1.5 gal (6.6 L)
    12. Ports: 4 x ¼″ NPT Ports
    13. Tank Length: 15″ (381 mm)
    14. Tank Width: 6″ (152.4 mm);
    15. Tank Height: 8.5″ (215.9 mm)
    16. Tank Weight: 8.65 lb (3.92 Kg)
    17. Air Source Kit Compressor: HornBlasters 275C Air Compressor
    18. Voltage: 12 volts DC
    19. Max Amperage: 18 amps
    20. Maximum Duty Cycle: 25% @ 100 PSI
    21. Compressor Length: 6.5″ (165.1 mm)
    22. Compressor Width: 3.5″ (88.9 mm)
    23. Compressor Height: 4.5″ (114.3 mm)
    24. Compressor Weight: 5.1 lb (2.31 Kg)


The air source unit provided in this horn kit must be mounted upright in a dry location. If you are uncertain if you have such a place available, please feel free to contact our sales team (sales@hornblasters.com or give us a call at +1-813-783-8058




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

Proper Hearing protection must be worn when using this airhorn. 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 contains chemicals known to the state of California to cause cancer.