Nathan AirChime K5LA 540 Train Horn Kit

(Fastest Filling to Continue Honking!)

HK-K5-540

8 reviews

Add Viair Air Compressor Bracket Tooltip
The Viair Air Compressor Bracket will allow you to mount your compressor upright and is compatible with Viair Compressor models 275C-485C.
addons
+$29.99
Add Dual Viair Air Compressor Brackets Tooltip
The Viair Air Compressor Bracket will allow you to mount your compressor upright and is compatible with Viair Compressor models 275C-485C.
addons
+$48.99
Add HornBlasters Dixie Musical Horn Tooltip
The Song of the South is available for your vehicle with our Dixie Musical Air Horn System.
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+$34.99
Add Electric Drain Valve Kit Tooltip
This kit has everything you need to drain your tank from the push of a button from inside the cab!
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+$77.99
Add 220 PSI Digital Pressure Gauge Tooltip
Using a tank mounted sensor wired directly to your gauge, our 220-PSI rated Digital Air Pressure Gauge delivers unparalleled accuracy with microprocessor stabilized readings.
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+$161.99
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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+$119.99
Add 400C Dual Air Compressor Upgrade Tooltip
Double your performance with the 400C Dual Compressor upgrade. Recharge your tank faster and honk more often.
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+$224.99
Add Gold Extended Warranty Tooltip
1 year add-on to existing warranty. Does NOT cover accidental damage, no advanced replacement.
Click here for more information!
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+See price in cart
Add Platinum Extended Warranty Tooltip
2 year add-on to existing warranty. DOES cover accidental damage and advance replacement.
Click here for more information!
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Hear these horns now!

You’ve decided to get a train horn, why not get the best and loudest train horn that you can buy? With our Nathan AirChime K5 540 train horn kit, you get the gold standard of train horns, the Nathan AirChime K5LA, along with our fastest filling onboard air system to date! You don't compromise anything else on your ride, why settle for anything less than the best train horn kit available?

Our Nathan K5LA train horn kit includes the Godfather of train horns, the legendary Nathan AirChime K5LA train horn. Simply put, these are the loudest and highest quality train horns that exist. This 5-chime die-cast beast dates all the way back to the '70s, has been tried and tested by the elements for decades, and is still the most widely used train horn today.

Of course, a train horn of such epic proportions requires an onboard air system of the same caliber and that's exactly what you get with our Nathan AirChime K5 540 train horn kit. Our Horn Air 540 onboard air system that we paired with the Nathan AirChime K5’s is our fastest filling system to date. Our black 5-gallon 8-port air tank will supply enough air for you to blast your Nathan AirChime K5LA train horn for up to 5 continuous seconds before needing to refill the tank. Sporting a Viair 400C air compressor, our Nathan K5LA 540 train horn kit utilizes the fastest filling onboard air system we have to date, having the ability to refill from 110-145 PSI in only 1 minute and 40 seconds!

  • Railroad-use train horn!
  • Heavy-duty 400C air compressor for faster fills!
  • Extra-large 5-gallon air tank
  • Max honk time: 5-7 Seconds
  • Part Number: HK-K5-540
  • 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″ (412.75 mm)
  • Horn Width: 29.75″ (755.65 mm)
  • Horn Height: 9.25″ (234.95 mm)
  • Horn Weight: 26.75 lb (12.13 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
  • Compressor: Viair 400C air compressor
  • Average Fill Time: 1 Min 30 Sec
  • Air Flow: 2.54 CFM at Free Flow
  • 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-Gallon Air Tank Dimensional Drawing

PSI CFM A BAR LPM A
0 2.62 16 0 74.0 16
10 2.39 18 1.0 65.0 20
20 2.21 20 2.0 60.0 23
30 2.11 22 3.0 56.0 25
40 2.01 24 4.0 53.0 27
50 1.93 25 5.0 49.0 28
60 1.84 26 6.0 46.0 28
70 1.73 27 7.0 42.0 28
80 1.65 27 8.0 38.0 28
90 1.52 27 9.0 35.0 27
100 1.45 27 10.0 31.0 27
110 1.35 27
120 1.26 27
130 1.19 27
140 1.08 27
150 1.01 26

* Supply Voltage: 13.8 Volts

5.0 GALLON TANK FILL RATE
0 to 150 PSI 4 min. 50 sec. (± 10 sec.)
110 to 150 PSI 1 min. 40 sec. (± 05 sec.)

* Supply Voltage: 13.8 Volts

  • 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 HornBlasters.com 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!
  • HornBlasters.com Satisfaction Guarantee
    HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments
    HornBlasters.com will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at HornBlasters.com 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 Loss warning icon
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
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.

Customer Reviews

5.0 Based on 8 Reviews
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Filter Reviews:
MW
Michael W.
United States United States
07/29/2021

Obnoxiously loud!!!!

OMG!! This Nathan set takes loud to a whole new level!! This is EXACTLY what I wanted!! I use it primarily to provide remedial driver education. It also replaces the dainty little 2 finger wave among Jeep drivers. Customer support was also top shelf. They replaced a defective part in 48 hrs!! Worth every dime!!!!

HornBlasters Nathan AirChime K5LA 540 Train Horn Kit Review
02/24/2021

Worth the money

Installed these on a 2016 Denali HD, very effective for getting the attention of distracted drivers. Highly recommended

GB
GARRARD B.
United States United States
11/05/2020

PRICELESS

THIS IS MY SECOND K5LA FOR MY OTHER VEHICLE THE PRODUCT HAS SAVED MY FAMILY & I COUNTLESS TIMES BECAUSE OF PEOPLE NOT PAYING ATTENTION WHEN DRIVING,WALKING AND RIDING BIKES WITH EARPODS✅

SG
Sean G.
Canada Canada
09/09/2020

Hurting feelings

I have two other custom kits from HornBlasters in my other trucks and this one is top shelf for an all you need set up . No additions needed, people are looking for the train !

BE
Billy E.
United States United States
08/18/2020

Amazing!

Decided to go with this setup for more volume and man was I right in doing so! These horns are loud with earplugs in! Totally worth the money.

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