Nathan Airchime K5HA Train Horn

Authentic Locomotive Horn & Loudest Available!


Add 1/2" Brass Electric Valve Kit Tooltip
Everything you need to hook-up your train horn to an existing onboard system.
Add 1/2" Manual Valve Kit Tooltip
Feather your sound just like a conductor with our 1/2" Manual Valve Kit.
Add AirChime Mounting Bracket Tooltip
This heavy duty pedestal mount gives you the ability to install the horn with enough clearance to connect airline directly to the bottom of the base!
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Hear these horns now!


If you are wanting to get a train horn on your ride, why not an actual train horn pulled straight from a locomotive? Unmatched in volume with a legendary tone, The AirChime K5HA train horn sets the bar on what a train horn should be and is a must-have for anyone that demands authenticity in their build. With its unique triangle shape manifold, the HA style is the best choice for installs where you are limited on space horizontally, but have plenty of room vertically.

Harder to come across and rarer than its straight bracket brother, the AirChime K5HA train horn is one of the most sought after train horns in the U.S., and with good reason. The AirChime K5HA 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. There is just no substitution for the thunderous and majestic tone that these horns produce. With 5 die-cast aluminum bells sporting stainless steel diaphragms mounted together on a high-flow die-cast aluminum manifold, the AirChime K5HA train horn is unmatched, not only in volume but construction quality as well.

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

  • Genuine Railway-Use Locomotive Tuned Horn!
  • High Profile Style Manifold.
  • Durable Die-Cast Aluminum Body
  • Stainless Steel Dual-Disk Diaphragm Technology
  • Pre-Tuned One-Piece Bell Construction
  • Reversible Bells For Easy Installation
  • Manufactured by Nathan
  • Made in the USA! Quality Does Matter!
  • Nathan Airchime K5 Train Horn
  • Horn: Airhchime K5 Train Horn
  • Horn Length: 19″ (482.6 mm)
  • Horn Width: 18″ (457.2 mm)
  • Horn Height: 12″ (304.8 mm)
  • Horn Weight: 37 lb (16.78 Kg)
  • Port: 1/2" NPT
  • 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 HornBlasters 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 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

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