America's most popular train horn since the 80s, the Nathan AirChime K5LA is known for its cheerful and powerful tone. This horn consists of five big die-cast aluminum bells with stainless steel diaphragms, ensuring it can weather any storm, rain or shine.

The K5LA was developed in 1975 for Amtrak at the suggestion of Deane Ellsworth. The horn was an adaptation of the AirChime K5H in which the #3 and #4 bells were modified to change the D# Minor 6th chord to B Major 6th.

The K5LA plays D#, F#, G#, B, and D#octave. Most #3 and #4 bells on the K5LA are stamped "A", which stands for American tuned. K5LA's are the horn that Amtrak, CSX, NS, and other railroads use, and the three chime version, the K3LA is also a very popular horn found on a variety of locomotives today.

2022年10月11日 · The legendary Nathan AirChime K5LA train horn included in this kit delivers unmatched loudness and exceptional quality. Its 5-chime design and die-cast construction produce a powerful and distinct train horn sound that demands attention.

The Nathan K5LA 5 bell commercial train horn. The largest and Loudest Nathan train horn made. Can be heard for miles. Produces 144 db at 10 ft . (true DB rating)

Constructed of a die-cast manifold and bells with pre tuned single piece bell housings the K5LA is one of the most durable horns built. It features a patented double-disk stainless steel diaphragm that eliminates the typical pitch drop experienced in most air horns.