120 PSI 1.5-Gallon Air Source Kit


3 reviews

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Our budget and beginner-friendly all-in-one air source solution! Our 120 PSI 1.5 Gallon Air Source Kit gives you everything you need to bring onboard air to your ride in a compact and easy to install an air source unit that is pre-wired and pre-plummed for your convenience. Our 120 PSI 1.5 Gallon Air Source Kit pairs amazingly with our train horns and air horns, giving you a quick and easy way to power your horns while taking it easy on your wallet. 

We outfitted our 120 PSI 1.5 Gallon Air Source Kit with a powerful Viair 275C Air Compressor mounted directly to the tank. Our 120 PSI 1.5 Gallon Air Source Kit is one of the fastest air-source units that we carry, recharging the 1.5-gallon tank from 90-120 PSI in only 35 seconds! Additionally, our 120 PSI 1.5 Gallon Air Source Kit has a 25% duty cycle, giving you extra reliability in case of emergencies. 

That best feature about our 120 PSI 1.5 Gallon Air Source Kit is the ease of installation. With our 120 PSI 1.5 Gallon Air Source Kit already pre-wired and pre-plumbed, all you need to do is connect the pressure switch to fused power, make a solid ground, and connect an air line to the compression fitting and you are all ready to get out and honking! If you just want to get your horn an air supply without getting a complicated onboard air system, this is the perfect kit for you! 

This Air Source Unit is featured in these Horn Kits: 

- Conductor's Special 127H - Dolphin 127H
- Bullet 127H    - Jackass 127H
- Psychoblasters 127H - Bandit 127H
- Mother Trucker 127H - Tug-37 127H
- Safety 127H - Shart 127H
- Outlaw Chrome 127H - Outlaw Black 127H
- Mother Trucker Chrome 127H - Rocker 127H

**Tank mounted air compressors are not fully sealed.  For this reason, the manufacturer recommends the tank/compressor system be mounted in the upright position in an enclosed space away from moisture, dirt, debris, etc**

**Detaching the compressor from the tank will void your warranty on this kit. If you need a solution where the compressor is detached, please look at our 232 and higher model kits. **

0 2.03 10 0 57.5 10
10 1.17 12 1.0 32.0 13
20 1.11 13 2.0 30.0 14
30 1.04 15 3.0 28.5 16
40 1.01 15 4.0 26.5 16
50 0.97 16 5.0 24.5 17
60 0.92 16 6.0 22.5 17
70 0.88 17 7.0 21.5 18
80 0.83 17 8.0 20.0 18
90 0.79 17 9.0 18.5 18
100 0.76 18 10 17.0 17
110 0.72 18
120 0.67 18

* Supply Voltage: 13.8 Volts 

0 to 120 PSI 2 min. 10 sec. (±10 Sec.)
90 to 120 PSI 35 sec. (± 5 Sec.)

 * Supply Voltage: 13.8 Volts

  • Pre-Installed Pressure Switch
  • 1/4" NPT 175 PSI Safety Blow-Off
  • 1/4" Drain Cock
  • 1/2" NPT Compression Fitting
  • Insulated Wiring with Connectors
  • Installation Instructions
  • HornBlasters 275c Air Compressor
  • 1.5 Gallon HornBlasters Air Tank
  • 90/120 PSI Pressure Switch
  • 145 PSI Safety Valve & Drain Cock
  • 1/2" Compression Fitting
  • Part Number: MC-127H
  • Air Source Kit
  • Operating Pressure: 120 PSI
  • Length: 15.2″ (386.08 mm)
  • Width: 5.9″ (149.86 mm)
  • Height: 12.8″ (325.12 mm)
  • Tank Volume: 1.5 gals (5.6 L)
  • Compressor Model: 275C
  • Voltage: 12 Volts
  • Max Amperage: 18 Amps
  • Max Output: 2.03 CFM
  • Maximum Duty Cycle: 25% @ 100 PSI
  • 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 with a 1 Year Manufactures 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

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 www.p65warnings.ca.gov.

Customer Reviews

5.0 Based on 3 Reviews
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Great compressor.

Built with quality. And it shows.


Customer service is great. Thanks for the prompt response and delivery. Will recommend with pleasure. Max Valdez MIDWESTBEDLINERS.


Blassting away

Experience was fantastic. I went to the facility and we talked about what was happening with the system that was installed. I originally went in to just get a new compressor but after our conversation I left with a new tank setup. Also based on our conversation I moved the tank from underneath the truck to mounted in the bed to better protect against the elements. I am extremely satisfy also on how well this tank holds pressure and on how much quitter it runs too. I will tag you all in a post soon with the horn blasting away. Thanks Horn Blasters. PS love the shirt to!