12-Volt
Permanent Magnetic Motor
Duty Cycle: 100% @100 PSI
Max. Working Pressure: 150 PSI
Max. Amp Draw: 19 Amps
Min. Ambient Temp: -40F
Max. Ambient Temp: 158 F
Dimensions: 12.5Lx6Wx7.25H
Net Weight: 12.73 lbs.

450P-Automatic Standard Features
Oil-less Design
High Performance PTFE Piston Ring
Stainless Steel Valves
Moisture and Dust Resistant
Gearless Direct Drive Motor
Anodized Aluminum Alloy Cylinder
Automatic Reset Thermal Overload protector
Aluminum Sand Tray with Vibration Isolators
Deluxe Dual Compartment Carry Bay
25ft Quick Connect Extension Hose with Heat Shield
Gas Station-Style Tire Gun with 200 PSI Gauge
3-pc. Inflation Tips Kit
5-in-1 Inflator/Deflator with Inline 120 PSI Gauge
Dual Battery Clamps with 50-amp Inline Fuse Holder
7ft 11 in. cable length, 25ft quick connect extension air hose.

450P-Automatic is VIAIRs first Automatic shut-off function portable compressor. This 33% duty cycle unit is capable of pressures up to 150 PSI and can be operated for up to 40 minutes at a time before needing to be rested. The 450P-Automatic comes with a close-ended gas station-style air gun for added convenience.

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Viair 400P VIAIR Portable Air Compressor (Sealed & 33% Duty)Viair air compressors offer a full range of capabilities from filling up your tires to running air tools on the trail. The 400 Series portable compressor is the most powerful portable compressor in the VIAIR lineup. In the tradition of VIAIR portable compressors, the 400 Portable setup is also capable of airing up as well as airing down tires. The 400P can air up a 35 x 12.5 tire from 15 to 30 PSI in about 1.25 minutes, and air down the same tire from 30 to 15 PSI in about 2.75 minutes using the versatile 35 ft. air down hose. This portable compressor is sealed for moisture & dust resistance, and it has a thermally protected motor. The 400P is equipped with 8 ft power cord with battery clamps. Other features include exclusive billet sand tray, 30 amp inline fuse with moisture resistant fuse holder, stainless steel carrying handle fitted with quick connect stud. The 400P has a total reach of over 43 ft., can easily reach all tires on most vehicles and trailers. Entire unit comes in a handsome heavy duty, water resistant double compartment carry bag. Standard Features Oil-Less Design Hi-Performance PTFE Piston Ring Stainless Steel Valves Gear-Less Direct Drive Motor Moisture & Dust Resistant Anodized Aluminum Alloy Cylinder Automatic Restart Termal Overload Protector Mounting Plates with Vibration Insulators

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Oil-Less Design, High performance PTFE piston Ring, Stainless Steel Valves, Moisture and Dust Resistant, Gearless Direct Drive Motor, Anodized aluminum alloy cylinder, automatic reset thermal overload protector, Heavy duty steel stand with vibration isolators, Deluxe carry bag, 3 pc inflation tips kit, Tire Chuck with built-in bleeder valve, 120 PSI Gauge with rubber boot, Dual Battery clamps with 30 amp inline fuse holder.
12ft cable length, 5ft air hose length.

User Ratings and Reviews

5 Stars Keeps on going when the going gets tough
I’ve had the little Viair 90p for about three years now. It’s used to pump up tires following off-road trips and sees plenty of use. When other compressors have difficulty pumping up four tires this little thing just keeps going and going pumping up tire-after-tire even in the heat. Other compressors thermal out, overheating and shutting down. The Viair puts out 1.77 cu.ft. of air a minute and puts a 33″ SUV tire from 18 psi to 36 psi in about four minutes. It uses a clamp-on valve connector which is quicker and easier to use then the kind that screws in place. Between the electrical cable and air hose it reaches all corners of my SUV with a bit of room to spare.

3 Stars Not perfect
The compressor is excellent.

The pressure guage is useless (I haven’t seen one on any compressor that was accurate).

I had to splice in an extra 10 feet of power cord to reach the rear wheels of my pick-up truck.

5 Stars Well made unit
Got this to carry in my Mini (along with a tire repair kit) since I went from the run-flats to real tires. Nicely-made unit, reasonable size, and comes in a nice soft case to put in the car. Worth the extra compared to the majority of the junk that’s out there at lower prices.

5 Stars Works well as intended
it is about 5months now since i have this and it still works well for me. it is solidly built. i would recommend it.

1 Star sent back to Amazon, may buy another one anyways
gage bent at 30 deg angle,and apparently damaged, upon opening box for first time; warranty of one year states to send it back to retailer to support warranty (what would happen past Amazon 30 day guarantee?) Made in China (of course). Still, I have not seen any other similar product online for cars that uses battery instead of cigarette outlet, so I may buy it again once I get credit for returned item.

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12volt, Permanent Magnetic Motor, Duty Cycle: 15%@100PSI, Max. Working Pressure: 100 PSI, Max. Amp Draw: 14 Amps, Min. Ambient Temp: -4 F, Max. Ambient Temp: 176 F, Stainless Steel Braided Leader Hose, Dimensions: 6.57″Lx3.66″Wx6.18″H, Net Weight: 5.3 lbs., Oil-less Design, High Performance PTFE Piston Ring, Stainless Steel Valves, Moisture and Dust Resistant, Gearless Direct Drive Motor., Anodized Aluminum Alloy Cylinder, Automatic Reset Thermal Overload Protector., Heavy Duty Steel Stand with Vibration Isolators, Deluxe Carry Bag, 3-pc Inflation Kit, 150 PSI gauge, Cigarette Lighter Power Plug with 15 amp inline fuse holder.
16ft cable length, 4ft air hose.

70P is a small but powerful portable compressor kit that is capable of inflating up to 25-Inch and smaller tires easily by simply plugging into your cigarette lighter power port, connecting to a valve stem and turning the unit on. Tire pressure can be monitored using the gauge mounted on top of the unit.

70P Amp Draw Warning:
Most automotive cigarette lighter/power ports handle up to 15 amps. Some vehicles power ports may have even lower amp ratings. Before purchasing and using this unit, inspect the amp draw limitations of your vehicle power port. The 70P Portable Air Compressor requires a power port rated for 15 amps. Never replace fuses of higher amp rating beyond the original rating of the circuit. Consult your vehicle manual for further details. You must turn on your vehicle when you are running the air compressor.

User Ratings and Reviews

5 Stars Works very well, so far.
I have used a number of portable compressors, and this is the first one I really like. Compared to the typical cheapie, it is much quieter and fills tires much faster. I got this model with the battery clips just to be sure I wouldn’t have any issues with blowing fuses when using a cigarette plug. I haven’t done any quantitative tests, but I estimate this fills my truck tire 10 times faster than some of the cheapies I have tried. Highly recommended.

5 Stars excellent product !
I’ve actually purchased 3 of these. They are well made , reliable, quiet, and fast. Some units like this have short wires and a long air hose. This one has long wires and a short hose. This enables you to hook it on the battery and carry it to the tire – instead of leaving the unit by the battery then pulling/stretching the coiled air hose to the tire, then going back to the front of the car, by the battery to turn it on. Prior to using this, I had a cheap one which I thought would be fine until I actually had to use it , and it was terrible. It took forever to just get the air pressure up from 20 to 25 pounds. I ended up throwing it out. This one is excellent. The model below this, the 70p plugs into the cigarette lighter. The model above this, the 90p, connects to your battery like this one, and it has a little more power and costs $25 more. I prefer the one that hooks on your battery because then you don’t have to worry about blowing fuses, and you have a little more power. It’s really a well made product.

Buy/More Info

Oil-less design, High performance PTFE piston ring, Stainless Steel Valves, Moisture and dust resistant, Gearless direct drive motor, Anodized aluminum alloy cylinder, Automatic reset thermal overlaod protector, Aluminum sand tray with vibration isolators, Deluxe dual compartment carry bag, 3 pc inflation tips kit, 5-in-1 inflator/deflator with inline 100 PSI gauge, Dual battery clamps with 40amp inline fuse holder.

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Oil Less Design, High performance PTFE Piston Ring, Stainless Steel Valves, Moisture and Dust Resistant, Gear less Direct Drive Motor, Anodized aluminum alloy cylinder, Automatic reset Thermal overload protector, Aluminum sand tray with vibration isolators, Deluxe dual compartment carry bag, 3 pc inflation tips kit, 5-in 1 inflator/deflator with inline 100 PSI gauge, Dual battery clamps with 40-amp inline fuse holder.
7ft 10 in. cable length, 25ft quick connect extension air hose.

User Ratings and Reviews

4 Stars Made in China
After burning out two $20 compressors from Harbor Freight, I decided to research online and buy something that really is powerful and works more than one time. The Viair 30033 330P is certainly powerful enough for my little Civic wagon. I don’t think it warrants the $170 price tag, but it does seem to be what it claims to be online. There’s no way the cords are long enough for a bigger truck or RV. I advise installing a dedicated, hard wired compressor in a big vehicle. The carry case is a cheap nylon bag and the overall quality is high for China: low by my USA standards. You can get it delivered quickly though. Mine arrived next day.

4 Stars Nice unit
I have three problems with this Viair. One: Made in China. No reason it can’t be made in U.S.A. Two: The gauge is mounted on the valve stem side of the air hose. To easy to drop the gauge on the ground and bang it around. Should be fixed mounted onto the compressor it self. Three: Gauge only is 0 – 100 psig. Could be 120 psig.

Other then that, Viair is a very good product. Compact, quiet and light. My tire size is 22.5. Started pumping at 90 and went to 100 psi in less than two minutes. Very impressed. Carrying case is excellent, as well as the extra fitting that come with this unit.

5 Stars Does what it’s supposed to very well
I love this little bugger; have had it for a couple of years now. Just the thing you need as an occasional off-roader like I am. It works exactly as stated in its sales pitch and as reviewed in various off-road magazines. If you need to pump up some 35’s then you might go up a bit, by this services my 8×32 BFG T/A just fine. Buy it!

5 Stars very usable quick pumping action
i experience using this pump when i had a flat tire @ work, my co-worker drives a toyota trd and have this pump before. when i used it the pumping of air was quick enough and i was impressed. i took the name and model number and check it out on the net and ordered it @ amazon the next day. i’m happy with it.

5 Stars Great little pump!
I’ve owned this pump sense July 08 and have used it numerous times.It’s works great,IMO you will be very satisfied with the purchase of this item.

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