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VIAIR 400P/40043 12V Portable Air Compressor, 150 PSI for Truck & SUV Tires

Based on 1,662 reviews
Condition: New
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$226.46

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 5
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At a glance

Condition
New
Style
Original Portable
Model
400P
Capacity
2.3 cu ft
Dimensions
10.87"L x 5.83"W x 7.48"H
Weight
10.4 lb
Color
Silver
In the box
Tool Kit

Features 5

  • HIGH PERFORMANCE OFFROAD COMPRESSOR (Model: 40043, 12V, 150 PSI, 35" Tires) - The 400P Portable Truck Air Compressor is 12V heavy-duty electric air compressor for offroad enthusiasts. Its powerful, direct drive gearless motor and maintenance-free operation are perfect for tackling tough terrain. Ultra-compact and storable in its own carrying case, it's an essential tool for any off-road adventure, combining reliability with convenience.
  • EXPLORE WITHOUT LIMITS: Trucks, SUVs, Jeeps, Offroad Vehicles, 4x4s, Side-by-Sides, RVs, Motorcycles, Road Bikes & Mountain Bikes. *Instructions: Attach the battery clamps to your vehicles battery and start the engine. Connect to a valve stem and turn the unit on. When required, use the included bicycle Presta valve adapter.
  • INCLUDED COMPONENTS: 12V mini air compressor tire inflator has a 25 ft 5-in-1 inflator/deflator air hose with inline 100 PSI gauge, 8 ft power cord, deluxe dual-compartment carry bag, 3 inflation tips (3/16" nozzle, 5/16" nozzle, and needle adapter), and Presta Valve Adapter. Features: Aluminum I-Beam sand tray, thermal overload protector, 40-Amp inline fuse holder, press-on tire chuck.
  • HIGH CAPACITY SPECS for LARGE TIRES: Powered by 12 volts, this small but mighty electric air compressor with a permanent magnetic motor delivers a maximum working pressure of 150 PSI with a 33% duty cycle @ 100 PSI; Free flow capacity: 2.3 CFM. Maximum Recommended Tire Size: 35". Fills a 35" tire from 15 to 30 PSI in 2 min. 45 sec or less. IP54 rating protects against dust and water spray from any direction. Dimensions: 10.87L x 5.83W x 7.48H; 10.40 lbs.

Description

VIAIR 400P - 40043 Portable Compressor Kit 12-Volt(12v). Tire Pump, Truck/SUV Tire Inflator, For Up to 35 in. Tires 400P From the Manufacturer 40043 Standard Features Permanent Magnetic MotorDuty Cycle: 33% @ 100 PSIMax. Working Pressure: 150 PSIMax. Amp Draw: 26 Amps

Specs 31

Brand VIAIR
Voltage 12 volts
Recommended Uses For Product Tire Inflation
Power Source electric-powered
Noise Level 74 db
Noise 74 db
Additional Features Heavy Duty, Portable, Quick Inflation
Maximum Power 414 watts

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

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View our full returns policy here.

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Top Amazon Reviews


Compressor with some good power.
Style: Original Portable
The compressor works well, I have used it to fill the RV tires to 80 PSI with no issues. It is quick and having the case to store it is nice, I do wish the battery connections were a bit longer. I had a hard time reaching my rear tire on the 32’ RV. It was pretty quiet for the most part. Had plenty of power to pump up the tires and the tire gauge works well. ... show more
Reviewed in the United States on July 4, 2026 by Arturo Figueroa

You Get What You Pay For With VIAIR
Style: Original Portable
So a few years back I purchased an off brand of small portable air compressor. It lasted a while. A trip to the desert, a year of airing up a 300 dollar tire that couldn't be patched because name brand tire dealer doesn't know what a large patch is, and it ran like that for some time. On a recent trip to the beach, in 70 degree weather it crapped out. Smoked. Burned to a cinder and didn't blow the fuse? I bit the bullet. Purchased the 400P. Night and Day difference. Air up is less than half the time. Heat, while any compressor will generate it, is managed well with the duty cycle. QUIET! The el-cheapo was louder than the vehicle, running, and I have a chopped exhaust with a shorty. Accessories... well I don't plan on using it for balls or a mattress. But they are free. Cord, not a fan of the coils, but you have to make a sacrifice for compact storage. Plenty of length for a full size truck. Cool air down feature for the perfectionist. I like it. I also have another tool for this, but it's an option. The gauge is close. About 2 pounds low. It isn't NASCAR or a spaceship. It will get me home. The bag. Time will tell. It works for carrying everything and keeping it in one place. Zippers and snaps will probably go, but it will be a while. Bag is lined. Probably rain resistant. As long as I don't submerge the snorkel it should be ok. Overall, very impressed with how small, fast, powerful, and put together the unit is. Has some weight. This one is a keeper, and cost is decent enough to put 1 in each vehicle. ... show more
Reviewed in the United States on March 4, 2020 by Secret Squirrel

Solid performance
Style: Original Portable
Aired down four tires for offroad (from 65 psi to 30psi). When it was time to air back up again to 65 psi all around, it took about 4 minutes per tire. This could be easily done without the unit needing to cool down. It has about a 20 minute run time per hour, which is enough to fully air up 4 tires. It is relatively quiet and has good reach for a 20 foot pickup. You don't need to move the unit to reach all four tires. The hose is long enough in addition to the long battery cables. Nice carry case too, that will fit a set of Coyote automatic deflators (which makes the air-down job incredibly easy and fast and accurate to whatever you choose for a preset deflation limit). Portable, small footprint, and very well built. Worth it. Don't go offroad without it. ... show more
Reviewed in the United States on June 14, 2021 by Amazon Customer

Good enough
Style: Original Portable
Unlike other "heavy duty" compressors this one can actually inflate a 19.5 inch tire to 82 psi with apparent ease. The construction is well conceived and all components seem high quality. The only downside is the pressure gauge is wildly inaccurate and a separate high precision gauge must be used. This is true even on standard car tires as well. Other than that it is well worth the investment. ... show more
Reviewed in the United States on August 25, 2024 by Walter

Can pump 10+ tires at a time
Style: Original Portable
easy to use, I’ve used it so many times and it is so consistent and fast. The most I’ve done consecutively is 10 tires (with small breaks in between to cool down)! It does it so quick as well. I’ve used it on so many trips now and it’s so convenient to use
Reviewed in the United States on September 21, 2026 by yang

VIAIR 400P: Power and Convenience in One Package
Style: Original Portable
The VIAIR 400P portable air compressor is a game-changer in the world of on-the-go inflation. With its impressive power and user-friendly design, it's become an essential tool in my automotive arsenal. The first thing that struck me was its sheer power. Capable of reaching a maximum pressure of 150 PSI, the 400P effortlessly handled my car tires, bike tires, and even inflatable water toys. Its fast inflation speed meant I spent less time waiting and more time enjoying my outdoor activities. Portability is a strong suit for the 400P. Its compact size and ergonomic handle made it a breeze to carry around, and the included carry bag added an extra layer of convenience. Whether I'm on a road trip or a weekend camping adventure, the 400P is always ready to assist. The built-in pressure gauge is a nifty feature, allowing me to monitor and adjust inflation with precision. The integrated LED work light proved to be incredibly handy during nighttime use, making the whole process smoother and more efficient. While not whisper-quiet, the 400P's noise level is manageable, making it suitable for various settings without causing a disturbance. In summary, the VIAIR 400P offers an unbeatable combination of power and convenience. It's a reliable and efficient companion for any outdoor enthusiast, providing peace of mind and timely inflation whenever and wherever you need it. If you're looking for a portable air compressor that delivers on its promises, the VIAIR 400P is the one to get. ... show more
Reviewed in the United States on August 11, 2023 by Eric K.

This tool works
Style: Original Portable
I have found the viair compressors to be dependable. This model doesn’t take forever to fill up a standard car tire. A must if you are an off road enthusiast or are always on the highway. Your tires don’t typically pop at gas stations and even if they do, the air chuck was probably stolen or the compressor is out of service. I haven’t used a gas station compressor now for over 6 years and have been both off road and on the sides of highways grateful that I have a compressor with me when I needed it. I wouldn’t travel now without one. ... show more
Reviewed in the United States on August 23, 2025 by Kindle Customer

Moves a lot of air with ease
Style: Original Portable
I first purchased a Viair 88P from amazon. When I received it the unit did not work properly out of the box. I immediately returned it to Amazon because of a factory defect and decided to order the 400P model because of its greater capacity to move air. I tested it on a SR225-75 large travel trailer tire as soon as I received the unit and was pleased with the results. It inflated the tire to 55psi in about 3 minutes. The cylinder was warm but not hot to the touch. The unit is larger and heavier than the 88P but was worth it because of its much greater capacity to get the job done. It comes with a cloth case that is adequate but not what you would consider heavy duty. It does keep all of the components in one place when needed. The size of the 400P in its case is to large to place under most passenger car seats but could be stored in the trunk or pickup truck tool box. If the components were separated without the case, they might fit under some passenger car seats. The removable air hose is coiled and compact and easily stretched out from the front of my 38' RV to the rear tires. Since it is equipped with an industrial type hose quick connector other hoses or extensions could be added but would probably not ever be needed. I would purchase this unit again and would highly recommend it to others along with a quick external tire puncture repair kit particularly if you drive long distances in rural areas. ... show more
Reviewed in the United States on January 17, 2018 by iykjg
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