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  1. Tire Inflator
  2. Viair
  3. Tire Inflator
  4. Portable
  5. 12V
  6. 150 psi
Viair Automatic Portable Air Compressor - 150 psi - 2.30 cfm

Viair Automatic Portable Air Compressor - 150 psi - 2.30 cfm

Item # VA89WR
Our Price: $299.95
You Save: $114.78
Tire Inflator
Shipping Weight: 16 lbs
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Inflate your vehicle's tires with this portable air compressor that runs off your vehicle's battery. Don't waste time finding the nearest gas station, instead keep this compact air compressor on hand. Great Prices for the best tire inflator from Viair. Viair Automatic Portable Air Compressor - 150 psi - 2.30 cfm part number VA89WR can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (9)
  • Q & A (0)
  • Videos (1)
  • Photos

Viair Tire Inflator - VA89WR

  • Tire Inflator
  • Viair
  • Portable
  • 12V
  • 150 psi
  • Analog Pressure Gauge
  • Automatic Shut Off

Inflate your vehicle's tires with this portable air compressor that runs off your vehicle's battery. Don't waste time finding the nearest gas station, instead keep this compact air compressor on hand.


  • 150 psi Portable air compressor fills up your vehicle's tires
    • Perfect for most large vehicle tires
  • Thermal overload protector automatically shuts down unit if it overheats
  • 30' Braided coil hose makes it easy to reach all of your tires
  • Gas station style inflation gun with 160 psi gauge allows for precise measuring when inflating or deflating tires
  • Automatic off switch turns compressor off when not in use
    • When moving from tire to tire you will not have to turn compressor back on and off
  • Battery clamp attaches directly to your vehicle's 12V battery
  • Vibration-resistant diamond-plate sand tray helps keep your compressor in place
  • Rugged carry bag for easy transport
  • Accessory tips keep your toys and mattresses aired up on your trip


  • Maximum air pressure: 150 psi
  • Maximum airflow: 2.30 cfm
  • Duty cycle: 33% at 100 psi
  • Voltage: 12V
  • Maxiumum amp draw: 30 amps
  • IP rating: IP54
  • Power cord length: 8'
  • Air hose length: 30'
  • Dimensions: 10-7/8" wide x 5-7/8" long x 7-1/2" tall
  • Weight: 10.70 lbs
  • 1-Year warranty

40045 Viair 400P-Automatic Tire Inflator - Portable Air Compressor

Installation Details VA89WR Installation instructions

Video of Viair Automatic Portable Air Compressor - 150 psi - 2.30 cfm

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Viair Automatic Portable Air Compressor Review

What's up everybody It's AJ with Today we're gonna be checking out this Viair portable automatic compressor. This is gonna be at 150 psi. Let's check it out. It's a great choice for portable air compressors because it's not only gonna have an automatic shutoff that means when it fills up the tank, it stops. So you don't flip the switch, just leave it running while you're going from tire to tire around your vehicle.

I had an old plastic one that would just rattle around and travel on the ground. You'd have to flip the switch turn off 'cause it just wouldn't turn off on its own. This one will do that and it gives you plenty of air hose to reach all those tires. So you can just set it here, go to each tire and get them filled quicker. The compressor itself has a nice foam handle on top.

It's not very heavy. You can lift it up and set it down very easily but I like that it has a grip. Some of the other compressors I've worked with don't even have a handle, so you have to grab it underneath and lift it, which that's doable, but I just like having this foam handle. It's easy to grab it and set it down. Another thing I really like and you'll see that when we go to use it, is the rubber bottom here.

You've got rubber stoppers that keeps that in place and you'll see as I move it this is would be what it looks like when it's running. So this part will be vibrating but the bottom won't be. So it won't be rattling around the ground, moving around on you. It'll keep it quiet and in the same spot. On the side, you're gonna have an air filter that you can replace.

They even give you the replacement part for that. So we'll just unscrew here. When you first get it, there'll be a rubber cap in place. You'll have to remove. It doesn't take that much to remove it. And then you just turn the lid to get to the air filter and that's how you replace it. It's gonna have a duty cycle of 33% of a hundred psi. So about at 40 psi, it's gonna run for about 40 minutes. So just keep that in mind, when it goes to shut off and cool down, it's not gonna allow itself to overheat. That's why it's got that automatic shutoff for. Now you do connect it to the battery to power it. So make sure your vehicle is started when you go to use it. You don't wanna drain your battery either 'cause it's gonna pull about 30 amps. Now let's go through the process of setting up the compressor. We're gonna hook the alligator clamps onto the battery. So we've got black on the negative side and then red on positive. Now they aren't very aggressive clips. You see they don't open super wide so we'll have to go in the back portion. They won't fit around the main terminal but they'll fit left here on the side. Now we're gonna start up the truck so it's ready to turn on the compressor. Now I'm gonna attach our air hose to the compressor. Just gonna push down on this section, push it on the valve, let go and it snaps into place. Do the same thing with the gauge and the inflator. Now just flip the switch and power on the compressor. You hear it kick on. It's gonna fill up this tank and then it'll shut off on its own. Now that it's shut off, you know it's got plenty of air to go to the tire. The compressor's gonna have an eight foot power cord. So going from the battery to the compressor on the ground that's a great thing just because the battery's gonna be in a different spot on every vehicle and you don't have to worry about this being super tight and bouncing around the tire or even up here in the engine bay. That's annoying and can cause it to fall over. It's safely on the ground with plenty of cord to go. Now you're also gonna have 30 feet of air hose so that not only can you reach the front tire, we can easily walk to the back tire and go the other side of the truck. And even here on the other side of the vehicle, we have plenty of air hose to reach to our tire. Now we're gonna attach the air hose. You just put this over the valve. Push down on this portion and it latches it so it doesn't thread on, but that also keeps it on there. You don't have to worry about it breaking off. It's on there nice and sturdy. With it attached, we can see the gauge says about 40 psi so I'm gonna put a little extra in there just to show you that it's easy to hold the trigger and air up the tire. We'll go a little bit higher. And then if we overshoot like I did here, wanted to stay at 40, we can hit this button here and that's gonna let the air out. That way you can get it to the psi exactly where you need it. Now it also comes with its own carrying case. I really like that. That way you keep everything together with all these parts. In there as well, is the spare filters I talked about earlier. And then there's other fittings it comes with for other devices that you can air up. Here's the spare fittings it comes with. That way you can air up other things if you need to. Now to put it away, you just undo all the quick fittings. I'm gonna coil up this cord and wrap up the jumper cables. We're gonna disconnect the air hose from this side. Make sure you let all the air out of the hose before you start disconnecting things, just so there's no air escaping. We're gonna set the air hose in the front pocket, right there. Zip it up. Then we can put everything else in the main portion. Just keep the alligator clips together, set the compressor down in the bag and then the air gauge as well. I'm gonna zip it up. Got two zippers, meet in the middle and then a flap and it clips over top. Overall, I did like this compressor. I like the length of the air hose so I can get to all the tires. I didn't have to move the compressor. Also, I like that the compressor has the rubber on the bottom so it keeps it in the place. It doesn't rattle around or even move on me so I don't have to worry about it moving around, making a bunch of noise. I also like that it has a carrying case, so I can keep everything together with the extra attachments that way you can just throw it in the back, and I know where everything is when I need it. Well, I think that does it. Thanks for hanging out and hope this helped..

Customer Reviews

Viair Automatic Portable Air Compressor - 150 psi - 2.30 cfm - VA89WR

Average Customer Rating:  5.0 out of 5 stars   (8 Customer Reviews)

Inflate your vehicle's tires with this portable air compressor that runs off your vehicle's battery. Don't waste time finding the nearest gas station, instead keep this compact air compressor on hand.


I got this to replace a regular 400P Viair compressor that had a very unfortunate hose failure. I guess it speaks to their reliability that despite the fact that the hose on my 15 year old compressor failed I got a new one from the same company.

The automatic feature, meaning that if you lift off the trigger the compressor stops, is really nice. And the automatic 400P has a MUCH better hose. Note that the regular 400P hose, the yellow one, is I think nylon, and Viair recommends it not be used below freezing. Which might have been in part why my old one broke.

It does irritate me that Viair uses a non standard female to female quick release hose. Why not do it like all other air tool set ups? female compressor to male at one end of the hose, female at the other, and male on the tools. Sheesh. In any case, relatively easy to put together a gender switcher (heh) so you could use a regular hose rated for the compressor's pressure.

The gauge on this seems to run a bit high, but again it's better than the regular 400P because if you let the compressor stop you get a true reading. A tad high compared to my regular air pressure gauge and my TPMS, but consistent which is the most important point.

Also, I MUCH prefer the chuck on this. The regular 400P has a non bending metal bit that is tough to fit onto valves on the tires on my truck and some trailers I've used. I had to bend the valve and fight it to get a good connection; it just got in the way of itself. Ugh. This connection is MUCH better. Smooth fitting, and tight.

I noticed it takes a few beats before the compressor turns off after you lift off the trigger. But again, it's consistent so once you know that you anticipate and lift off a bit earlier.

It also has a stickier base, so it doesn't seem to walk around as much. A nice touch.

All in all it was worth it to upgrade to the automatic from the regular 400P even though I was forced into it. Especially since etrailer had it on sale. Thanks etrailer!


Works very well. I use it for inflating tires and pushing liquids out of my RV water supply lines for winter.


I love the design engineering of the pump. 1 year ago I had purchased a smaller pump but it couldn't pump 4 tires to 123m lbs. kept shutting down when it got too hot. Hopefully this on will be able to do that.


there was a defective air filter housing but Viair is supposed to send me a replacement




Quick smooth transaction , good communication AAA+




See what our Experts say about this Viair Tire Inflator

  • Comparing Viair Portable Compressors For A Tandem Axle Airstream Travel Trailer
    A typical tire inflator will have a CFM rating of around 1.5 to 2 CFM, with a majority of the little cheap ones being less than 1 CFM. The higher the rating the faster you'll be able to air up the tires. The Viair Automatic Portable Air Compressor # VA89WR has a 2.30 CFM rating and at 150 psi so it's a bit above the standard. Another important aspect to consider is the duty cycle. This compressor comes with 33% duty cycle at 100 psi, which means the compressor can run for approximately...
    view full answer...
  • Is There a 12v Cigarette Outlet Adapter Available For the Viair 400P Portable Air Compressor
    There is not an adapter for a 12v cigarette lighter for the Viair Automatic Portable Air Compressor # VA89WR. The reason is the amp draw. The # VA89WR has a maximum amp draw of 30 amps and most 12v cigarette lighters have an amp range from 10-20 amps. We do have an option available that uses a 12v cigarette outlet connection. - Viair Portable Air Compressor Kit # VA76WR This option only has a max amp draw of 15 amps, but it also has less PSI (60psi) and a lower airflow (1.26cfm).
    view full answer...
  • Recommended Air Compressor for Truck and Trailer
    The Viair Automatic RV Portable Air Compressor part # VA87WR would be an excellent option for filing up the tire on both the vehicle and trailer. The 150 psi rating will be suitable for the vehicle and more than enough for the trailer. The extra long hose should also allow you to fill the trailer tires while still hooked up to the vehicle without any extra maneuvering. It comes with accessory tips so you can fill up other smaller items and it comes with a carry bag so you can keep everything...
    view full answer...
  • Does the Viair Automatic Portable Air Compressor item # VA89WR Have a Standard 1/4 NPT Fitting?
    Yes, the Viair Automatic Portable Air Compressor item # VA89WR and the gun attachment have the standard 1/4 npt fitting you see on all air tools.
    view full answer...
  • Compatibility of Viair RV Winterizing Kit # VA27WR With Viair Compressor Systems
    Per Viair their RV Winterizing Kit # VA27WR can only be used with the following compressor systems. Viair Automatic RV Portable Air Compressor for Class C RVs - 150 psi - 2.30 cfm # VA87WR Viair Automatic RV Portable Air Compressor for Class A RVs - 150 psi - 1.80 cfm # VA59WR Viair BaseCamp Heavy Duty OnBoard Air Compressor with 2 Gallon Tank - 150 psi - 2.62 cfm # VA26WR Viair Interstate Constant Duty Onboard Air Compressor with 1.5 Gallon Tank - 200 psi - 1.86 cfm # VA58WR Viair does...
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  • Recommended Air Bags and Compressor for Tires On 2002 Ford Excursion
    The Firestone Ride-Rite Air Helper Springs part # F2255 for 2WD or part # F2251 4WD are what I recommend for a 2002 Ford Excursion. These air bags offer a bolt-on fit and will do a great job of providing extra support when towing or hauling. In order to inflate the air bags from inside the vehicle, you'll need an air compressor system. The Air Command II Xtreme Duty Compressor part # F2549 is what I recommend for this as it has everything you need for a complete installation, including...
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Do you have a question about this Tire Inflator?

Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Edited by:
Daron K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Bethann B
Written by:
Bethann B

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