Viair 40040 400C Air Compressor Kit

I am using this compressor for my train horns set to 160 PSI off 120 on. It fills a 2 gallon tank in just under 3 minutes from 0 pressure. It works like it should but it draws about 30 amps. So, 10 gauge wire and in my truck, I have 2 batteries but in a car with one battery I would caution not using this until the engine is started. I'm very happy with this unit.

Great compressor! Doesn't make as much pressure as the larger units but it puts out the most volume by far. Added this one to an older 400P that I converted to permanent mount and the dual set up works great to air up the 35s on my truck in no time. FIlls the 2.5 gal tank to 150 psi in just over a minute and a half.

I was worried about a tankless pump, but I don't have to wait for it to charge, unlike a a craftsman 5gallon compressor I in the garage. Turn it on and use it right away, lots of airflow.Mounted it underneath the truck under the frame, very little vibration and noise. I ended up using nylon hose to run air a hose connector mounted through the back bumper.

Made in China.The air filter housing is a flimsy, snap-together affair that is nearly impossible to open. No provisions for screwdriver prying are made into the design.

Have used these for years work great no issues at all

This is my second Vair 400c. I thought it would be a little quieter than my old last one, but it does work great and works when needed. I recommend this product for train horns and airing up tires!👍

So far the compressor has been working great! I'm using it with a two gallon tank and it fills it in about a minute.

It is a bit a bit more than I may have needed for my air shocks, but I now can air up my tires in a lot less time than with the smaller unit.