Nathan AirChime K3 Train Horn


Hear these horns now!


Looking for the best three chime train horn you can buy? You have come to the right place! The Nathan AirChime K3 Train Horn brings the raw power and volume of a modern-day diesel locomotive with a classic tone that dates all the way back to the 1950s. Crafted from die-cast aluminum and subjected to hours of machining until perfected, the Nathan AirChime K3 Train Horn is built tough enough to withstand years of wear and tear from rain, snow, and sun. It’s really no wonder why the K-series has been the horn of choice for locomotive companies for decades.

You don't get any louder or a better tone than with the real thing. Our Nathan Airchime K3 Train Horns come straight off of diesel locomotives, put through a rigorous reconditioning process and stripped down to a raw finish, ensuring that while it's been tried and tested on the rails it comes to your door as good as new. With a smaller installation profile than the other K-Series horns, the Nathan AirChime K3 Train Horn is perfect for those that want real train horns but might not have the room for a larger set.

***All Nathan Airchime Horns have a 7-10 Business Day Lead Time!!***

  • Genuine Railway Use Locomotive Tune Horn!
  • Die Cast Durable Aluminum Body
  • Stainless Steel Dual-Disk Diaphragm Technology
  • Pre Tuned One-Piece Bell Construction
  • Reversible Bells For Easy Installation
  • Manufactured By Nathan Airchime
  • Made In The USA! Quality Does Matter!
  • Horn: Nathan Airhchime K3 Train Horn
  • Horn Length: 18.25" (463.55 mm)
  • Horn Width: 16.25" (412.75 mm)
  • Horn Height: 9.75" (247.65 mm)
  • Horn Weight: 32 lb (14.515 Kg)
  • Port: 1/2" NPT
  • Horn: Nathan Airhchime K3 Train Horn
  • Horn Length: 18.25" (463.55 mm)
  • Horn Width: 16.25" (412.75 mm)
  • Horn Height: 9.75" (247.65 mm)
  • Horn Weight: 32 lb (14.515 Kg)
  • Port: 1/2" NPT
  • Valve Kit Part Number: VK-8
  • Port Size: ½″ NPT Female
  • Orifice: 16mm
Vehicle Installs
 1995 Ford F350 Powerstroke 2016 Dodge Ram 3500
*Check out our Install Gallery for more Installs!


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 of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by our One Year Manufacturer's 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.


    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