Upgrade your ride with the top-of-the-line Nathan AirChime K5 544K train horn kit. Experience the unmatched loudness and quality of the legendary Nathan AirChime K5 train horn, the gold standard in train horns. With decades of proven durability and reliability, this 5-chime die-cast horn is still the most widely used train horn today on the railroads. Paired with our heavy-duty 544K onboard air system, this kit gives you the best train horn experience possible.
IMPORTANT: Our Nathan AirChime train horns are sourced from retired locomotives and undergo extensive reconditioning. This process includes sandblasting, a new black powder coat finish, and replacing all internal components such as diffuser rings, diaphragms, and cushion rings. This ensures each horn performs like new and retains its authentic locomotive sound.
| Part Number | HK-K5-544K |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Horn | Nathan AirChime K5LA (K5 low mount American tune) |
| Horn Material | Cast Aluminum |
| Horn Length | 19″ (482.6 mm) |
| Horn Width | 29.75″ (755.65 mm) |
| Horn Height | 9.25″ (234.95 mm) |
| Horn Weight | 37 lb (16.78 Kg) |
| Horn Port | ½″ NPT |
| Tank | HornAir 5-gallon 8 port air tank |
| Tank Length | 20.5″ (520.7 mm) |
| Tank Diameter | 9.5″ (241.3 mm) |
| Tank Height | 11.5″ (292.1 mm) (With Legs) |
| Tank Weight | 20 lb (9.07 Kg) |
| Tank Ports | x7 1/2" NPT, x1 3/4" NPT |
| Max Amperage | 26 amps |
| Maximum Duty Cycle | 33% @ 100 PSI |
| Compressor Length | 9.0″ (228.6 mm) |
| Compressor Width | 4.0″ (101.6 mm) |
| Compressor Height | 7.05″ (179.07) |
| Compressor Weight | 8.00 lb (3.63 Kg) |
| 5.0 GALLON TANK | FILL RATE |
|---|---|
| 0 to 150 PSI | 6 min. 45 sec. (± 10 sec.) |
| 110 to 150 PSI | 2 min. (± 05 sec.) |

Get ready to sound off like never before with the Nathan AirChime K5 premium train horn kit from HornBlasters. This top-of-the-line kit features the legendary Nathan AirChime K5LA train horn, known for its unbeatable loudness and low rumble, and paired with the powerful HornAir 844K onboard air system.
The HornAir 844K air system, with its 8-gallon capacity and 1NM compressor, provides up to 8-10 seconds of earth-shaking honk time, making it the perfect match for the Nathan AirChime K5 train horn. With a 100% duty cycle up to 200 PSI, this system can handle not just your train horns, but also your air tools and suspension.
IMPORTANT: Our Nathan AirChime train horns are sourced from retired locomotives and undergo extensive reconditioning. This process includes sandblasting, a new black powder coat finish, and replacing all internal components such as diffuser rings, diaphragms, and cushion rings. This ensures each horn performs like new and retains its authentic locomotive sound.
| Part Number | HK-K5-844K |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Max amperage | 50 Amps |
| Horn | Nathan AirChime K5LA (Low Mount) or Nathan Airchime K5HA (High Mount) |
| K5LA | Length: 19″ (482.6 mm) Width: 29.75″ (755.65 mm) Height: 9.25″ (234.95 mm) Weight: 37 lb (16.78 Kg) |
| K5HA | Length: 19″ (482.6 mm) Width: 18″ (457.2 mm) Height: 12″ (304.8 mm) Weight: 37 lb (16.78 Kg) |
| Horn Material | Cast Aluminum |
| Horn Air Inlet | ½″ NPT |
| Air Tank | 8-gallon air tank |
| Tank Length | 32.5″ (825.5 mm) |
| Tank Diameter | 10.5″ (241.3 mm) |
| Tank Height | 12.5″ (317.5 mm) (With Legs) |
| Tank Weight | 20 lb (9.07 Kg) |
| Maximum duty cycle | 100% @ 100 PSI / 50% @ 200 PSI |
| Compressor length | 10.75″ (273.05 mm)(Each) |
| Compressor width | 4″ (101.6 mm)(Each) |
| Compressor height | 6.75″ (171.45 mm)(Each) |
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.
Warning
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 www.p65warnings.ca.gov.
First Time Buyer's
If you’re new to horns or horn kits, our First-Time Buyer’s Guide is a great place to learn what to expect, how to install your kit, and how to choose the right setup. Our Install Gallery is also a great resource for getting inspiration for your application.
You may also like