HornBlasters Nathan AirChime K3 540 Train Horn Kit


  • This HornBlasters train horn kit features one of the loudest horns ever made, the AirChime K3LA. The variation of the AirChime K3 is an actual railway-use horn used on many commercial train lines in the USA. If you’ve heard a diesel locomotive barrelling down its tracks and blowing its horn, then more than likely this is the same horn you’ve heard. This kit contains everything you need to install it on any vehicle. An extremely loud train horn that is still in use on real locomotive engines, a five gallon air reservoir to supply lots of air, a Viair 400C compressor pushing 2.54CFM to ensure fast fill rates, and all fittings and accessories needed to ensure stable and long term use!

    Hear these horns now!

    1. Railroad-Use Train Horn!
    2. Heavy Duty 400C Air Compressor
    3. Extra Large Five Gallon Air Tank
    4. Max Honk Time: 5 Seconds
    1. Nathan AirChime K3LA
    2. 5 Gallon 8 Port Air Tank
    3. Viair 400C Compressor
    4. HornBlasters 110/150PSI Pressure Switch
    5. Replacement Air Filters
    6. 17' of 1/2" D.O.T. Approved Airline
    7. Shocker Valve Kit
    8. All Necessary Fittings
    9. Detailed Installation Instructions
    10. Earplugs
    1. Part Number: HK-K3-540
    2. Horn: Nathan AirChime K3
    3. Horn Length: 18.25″ (463.55 mm)
    4. Horn Width: 16.25″ (412.75 mm)
    5. Horn Height: 9.75″ (247.65 mm)
    6. Horn Weight: 18 lb (8.16 Kg) 
    7. Horn Port: ½″ NPT
    8. Tank: HornAir 5 Gallon Tank
    9. Tank Length: 20.5″ (520.7 mm)
    10. Tank Diameter: 9.5″ (241.3 mm)
    11. Tank Height: 11.5″ (292.1 mm) (With Legs)
    12. Tank Weight: 20 lb (9.07 Kg)
    13. Compressor: Viair 400C Air Compressor
    14. Average Fill Time: 1 Min 30 Sec
    15. Voltage: 12 volts DC
  • Air Flow: 2.54 CFM at Free Flow
  • Max Amperage: 26 amps
  • Maximum Duty Cycle: 33% @ 100 PSI
  • Maximum Working Pressure: 150 PSI
  • Compressor Length: 9.0″ (228.6 mm)
  • Compressor Width: 4.0″ (101.6 mm)
  • Compressor Height: 7.05″ (179.07 mm)
  • Compressor Weight: 8.00 lb (3.63 Kg)





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.


Details: Nathan Airchime Train Horn Kit