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2.5-Gallon 150 PSI Onboard 12-Volt Air Compressor Kit

5 Stars2 Reviews
Reg. $369.99 Save $54.99
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To get better traction and feel off-roading, you have to let a little air out of your tires. The only problem is you need to refill your tires to drive over the pavement to get home. Whether you're an off-roader or just someone who likes to be prepared, the 2.5-Gallon 150 PSI Onboard 12-Volt Air Compressor Kit from Viair helps get your tires pumped up for travel. The kit includes everything you need to get this onboard air system installed. You'll get a 2.5-gallon air tank that installs horizontally and a 400C compressor with a 33% duty cycle. These come with all the bolts and equipment needed to mount them in place. This onboard air system can inflate up to 35-inch tires on cars and RVs. Depending on the size of your tire and your desired air pressure, you can fill your tires in as little as 2 to 5 minutes. It's up to you where you want to install the air compressor: it can be mounted inside or outside your vehicle. Wherever you put it, you'll be able to reach your tires easily with the air system's 35-foot coil hose. The hose coils so it remains compact and tangle-free when not in use and stretches to reach your tires. Meant to be a long-term feature of your vehicle, this air compressor requires drilling for secure mounting. The compressor system works with 12-volt systems, draws up to 28 amps of current, and includes all the electrical connections you need to wire it in. With that much power, the air compressor system can output 1.01 CFM at it's maximum working pressure of 150 PSI. This onboard air system is built to be as safe as it is useful. The 400C air compressor features a built in thermal overload protector that shuts the unit off if it gets too hot to prevent damage to your vehicle and air tank. The air compressor kit also comes with a dash panel gauge with an on/off switch, and a pressure switch with a relay so you can monitor and control the air flow with ease. Wherever you're going, you won't have to go without tires at their proper pressure. The Viair 2.5-Gallon 150 PSI Onboard 12-Volt Air Compressor Kit makes it easy to have and install your own onboard air system.


  • Kit includes everything you need to install an onboard air source for you to use with tire maintenance and small pneumatic tools
  • Features a 2.5 gallon air tank and 400C, 33% duty cycle compressor
  • Rated at 150 PSI maximum working pressure
  • For inflating tires up to 35 inches on cars and RVs
  • Bolt threads come pre-sealed so you can start installing right away
  • Mounts inside or outside your vehicle
  • Remote mount air filter assembly sealed compressor
  • Replace air tank every 2 to 5 years
  • Includes:
  • 400C compressor
  • 2.5-gallon air tank
  • 35-foot coil hose with tire chuck
  • 0.25-inch quick connect stud (F)
  • 0.25-inch quick connect coupler (F)
  • Dash panel gauge with on/off switch
  • Pressure switch with relay (110 PSI on, 145 PSI off)
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3500HD Dually pulling Toyhauler

I needed a compressor unit that could air the tires on the Toyhauler (110 psi). Air the pin box and dually tires. I decided to mount this in the bed, fore and aft of the wheel wells. Made my own brackets to mount the compressor and tank on. This unit…

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Feb 12, 2018

Can’t compare

Have this in my my truck for towing and off road awesome way to have air tools and air on demand. Bit of a set up time but well worth it


Dec 5, 2017

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