Viair 400P-RV Automatic Portable Compressor Kit

We have found that a compressor is essential equipment for full-timing.

The Viair 40047 400P-RV Automatic Portable Compressor Kit connects directly to the truck battery instead of the cigarette lighter. Direct truck battery power provides enough electricty to pump up our tires in seconds rather than minutes.

It comes with 60 feet of hose – enough to reach around the entire rig.

When we had a blowout in the Mojave Desert we learned that not all AAA responders have a compressor onboard. Good thing we carry our own.

Now, it’s easy to check the tire pressure and takes just seconds to use.

To be equipped is to be confident and prepared for any and all roadside emergencies. The Vlair compressor has also come in handy for helping fellow travelers in distress.

The handy carry case is included.


  • 12 VOLT – 150PSI Max Working Pressure, engine must be running during use.
  • 2.3CFM Free Flow @ 0 PSI, Power Cord: 8′ Air Hose: 60′ 12-Volt
  • Powered direct to the car battery with alligator clamps, Duty Cycle: 33 percent @ 100 PSI Max. Working Pressure: 150 PSI Max. Amp Draw: 30 Amps Tire Inflation Gun with 130 PSI Inline Gauge
  • Comes with a tire inflation gun and gauge, build in pressure switch, air hose, RV accessories and a carrying case.
  • Great for adjusting tire pressure on RVs and trailers.