VIAIR 450P Portable Air Compressor with Automatic Function and Tire Inflation Capabilities (45043)

k: Quick and easy to air up after offroad adventures. Compressor is decently quiet and airs up quickly.

United States on Dec 11, 2023

craig butler: This is not the fastest out there, but it works very well. 100 percent duty cycle. Very quiet and so little vibration, so much so I was pleasantly surprised. All my other 12v compressors have been noisy, and shake like crazy. The carry bag is nice, the hose and all the accessories are well thought out. One of the situations where you get what you pay for, and I have grown tired of paying for junk. This should last a long time. Happy customer for sure.

Canada on May 12, 2023

Distant Cousin: Works well. We bought this compressor to keep our truck camper and Jeep tires and spares inflated to the proper PSI. The Viair 450P is 100-percent duty cycle. Most portable consumer-grade air compressors are not. The 450P can be used continuously for about an hour, and then needs to cool down for about 15-minutes. Be careful as some parts of the compressor get mighty hot and will definitely burn your hide.

The Viair 450P connects to your vehicle’s battery. Make sure the engine is running as the unit has up to 23-amps draw for the compressor DC motor.

The compressor is very useful to reliably air up in a timely fashion and to not overheat or damage itself. It is also good for inflating toys and sports equipment. It can also be used to purge the fresh water lines, water heater, pump, and faucets for winterization. It should be used with an air regulator (~30 PSI).

One of the best things about the 450P is the synthetic rubber base. The non-skid bottom and feet also limit sliding on most surfaces, and will not damage most surfaces. It works well in sand, on firm mud, and on wet grass, asphalt, and concrete. The base and feet are easy to clean...

United States on Dec 24, 2022

Canadian Jack Pot: Does a good job. It is WAY quieter than I thought it would be. I think it is quieter than my diesel truck. Only has 1 hose, but reaches everything I need.

Canada on Nov 15, 2022

amREADY ConsultingamREADY Consulting: So far this and my other Viair 88 have been excellent products. This one has the very handy feature of shutting off when you aren't actively pumping air. I can't overemphasize how nice that is.

The bag is a little thin but it is holding up fine. I'd prefer a little heavier material. There is enough room in the bag to add a patch kit and other small items.

Being 100% duty cycle means it will just keep going and going. I chose that over a faster fill but 33% duty cycle because I didn't want to be worrying about or managing cool off periods. A false economy to a faster fill. The faster models also take more amperage, but that isn't a big deal.

The hose is really nice that it stretches to all 4 corners of a full-size truck.

Overall, very happy with this. I air down from about 38 to 25 psi for mixed offroading and lower for specific needs. This airs up after with no problems at all.

Canada on Mar 12, 2021

BG12: We use this on our RV. It's quick and quiet and reliable, all things our last (cheap) compressor was not. VIAIR as a brand seems a bit pricy but when I'm out in a remote location and need to air up my dually's I'm more interested in reliability than saving a few dollars. This unit is 100% duty cycle at 100psi so I don't have to worry about pausing between tires.

Canada on Oct 15, 2019

Amazon Customer: Great portable unit works perfectly. I purchased a second house 25' feet or so to reach the back of my trailer.

Canada on Jun 26, 2019

Amazonshopper0702Amazonshopper0702: *** 6 years of use update: Still working great and have not had any issues with the compressor, bag or any of its included parts. Have been using it quite a bit and pack it in the truck for every road trip or trail adventure. Added a picture of the pumps specs***

Bought this for use with my 4WD truck and jeep for airing up my tires. Did a ton of research and decided on the Viair 450P. After getting it and some use I am actually really impressed with the quality of everything that comes with the compressor. The air gun and pressure gauge are well made and seem heavy duty. The pressure gauge reading is about 4-5lbs higher than what it actually is - so would be good to have a 2nd gauge on hand to compare PSI. The hose and clamp on air chuck are both nice - hose is made of nice rubber and the air chuck is heavy cast metal vs stamped steel. The long curly air hose is NOT the typical cheap plastic hose (usually yellow and cracks or shatters after any small amount of time in the sun). It is rubber coated with a woven/braided line. Very flexible and also fits nice into the front bag pocket. The bag seems nice and has plenty of room for everything. Material is a...

United States on Jan 13, 2018

Brian KillianBrian Killian: I do allot of wheeling in my 2016 wrangler jk rubicon. I recently went to a 35 inch tire on beadlock wheels. Before I was running 32 inch tires on the stock wheels and airing down to between 18 and 20 psi. Well just the stock tires burnt my cheap little compressor up. Now I am airing down to 10 psi and this thing is amazing. It affords up all 4 35 inch tires up with no problem and I am not having to travel with low air pressie to a gas station. It's a great air pump and it airs up my tires in a fairly decent amount of time I think it takes about 4 minutes maybe less per tire. And I am not ruining them on pavement looking for a gas station to pump them back up. I would definitely recommend this to anyone who wants a good portable air compressor that wheels allot. Oh and it's very quiet too, which was shocking to me, as I was expecting it to be loud like my other small El cheapo compressor was. Do keep in mind though when using this one or any one like it always grab it by the handle. My nephew can attest that the metal parts get very hot, as all compressors will. Definitely a good buy and I will definitely buy again once this one gives out if I haven't...

United States on Apr 12, 2017