Top 10 400P air compressors in the US in 2023

Air compressors come in different varieties, and in this article, we will discuss a 400p air compressor. We will make a list of the 10 best 400p air compressors that are available in the United States right now. We will also address some queries related to 400p air compressors.

VIAIR 400p - 40050 portable compressor kit with good air hose length

This portable air VIAIR compressor 400p works on 24 volts of electricity and has a noise level of 74 dB. This VIAIR portable air compressor kit has a thermal overload protector, an i-beam sand tray, and a deluxe dual compartment carrying bag. This Viair 400p portable compressor also has an inline 100 PSI gauge and a 5-in-1 deflator/inflator air hose. The air hose length is long.

VIAIR 400P-40053 Air Compressor

The VIAIR 400p-40053 air compressor is one of the best 400p compressors produced by VIAIR. The noise level of this machine is extremely low, as it produces 69 Db of sound. The compressor has a power cord and requires 12 volts of electricity to run. This is a portable air compressor, so it will fit easily in your home, garage or in your vehicle. If you purchase this compressor, you will be able to inflate a tire size of more than 42 inches. The compressor also comes with a tire inflator, an air hose and a tire pump.

VIAIR 400p 40043 portable Air Compressor

This air compressor is a high-quality product, and it runs on corded electricity. This machine requires 12 volts of electrical power to run and it comes with several features such as:

  • Stainless steel valves
  • Thermal overload protector
  • Aluminium and i beam sand tray with vibration isolators
  • Performance PTFE piston ring
  • Included air hose connects directly
  • Good airing mechanism

This air compressor only produces a sound level of 16 Db, and also comes with a deluxe dual compartment carry bag. The VIAIR compressor kit is a larger portable compressor kit than other portable systems.

VIAIR 400P 150 Psi 2.30 CFM Air Compressor

This CFM air compressor is produced by VIAIR and is the most powerful portable air compressor produced by the company. The product is made to fill up to 35 tires in under 2 minutes at 15 to 30 psi. This kit comes with an eight-foot-long electrical cord, 35-foot coiled hose, battery clamps, and a waterproof double compartment bag.

VIAIR 400P Automatic Air Compressor

The VIAIR is a reputable brand and this 400p Automatic Portable Air compressor has a 33% duty cycle at 100 psi, and you can operate it for 40 minutes. This air compressor is equipped with an automatic shut-off function, and when not in use, the compressor shuts off itself. This compressor comes as a kit and is accompanied by an air hose that has a length of approximately 30 feet. A tire inflation gun with a pressure gauge and release valve also comes in the kit. Here are some key features of this product:

  • Dual battery clamps
  • Vibration-resistant and diamond-plated sand tray
  • 40 amp inline fuse holder
  • Gas station tire inflation gun with a 160 psi gauge

VIAIR 400P RVS Air Compressor

This Viair 400p compressor comes with a portable tire compressor kit. Once you have the kit, you won’t have to go to a gas station to get your car tires filled. This portable compressor is perfect for small RVs and can fill 80 to 90 psi tires in less than a minute. This is a perfect air compressor for 35 inch tires. Here are some key features of this product:

  • Automatic shut-off feature
  • Comes with a pair of air hoses (Extension Hose: 30 feet/Primary Hose: 30 feet)
  • Comes with a thermal overload function
  • Has a 1/4 inch quick connecting coupling
  • Good amp draw
  • Perfect for truck tires

VIAIR 400P-40047 RV Automatic Compressor Kit

This Viair 400p portable compressor kit requires 12 volts of electricity to work and only has a noise level of 74 Db. The compressor is equipped with an automatic shut-off function, thermal overload protector, diamond-plated and vibration-resistant sand tray and a heat-shielded quick connect coupling. This compressor is definitely a good value for you.

VIAIR 400P-40045 Air Compressor

This 400p portable air compressor unit is a high-quality product, it produces low noise levels of just 74 Db and comes with a braided coil hose (30 feet long), and has a 2.3 CFM free flow at 0 psi. You can power this machine directly to the battery with the help of alligator clips. The compressor is also accompanied by a 40-amp in-line fuse and the working pressure can inflate tires of up to 35 inches. This is what you will get in the package if you purchase this compressor:

  • 3 Pc Inflation tips kit
  • Easy access for tires
  • 160 psi tire inflator gun
  • Presta valve adapter
  • 12 volt air compressor
  • Ingress protection rating
  • Storage bag with storage compartments

This compressor will protect itself from other reproductive harm.

VIAIR 400p 4044 Automatic Compressor

This battery-powered portable compressor system has a net weight of 16 pounds and is equipped with an automatic shutoff function, a thermal overload protector, a heat-shield quick connector and a diamond-plated sand tray that is vibration resistant. This compressor has a fill rate of 30 psi, and if you own an RV, you should purchase this product.

VIAIR 400p Portable Compressor

This Viair portable compressor features an updated diamond-plated i beam sand tray which is lighter weight and has improved stability. While this a portable air compressor, it is extremely powerful and can fill 35 inch tires in less than 6 minutes. The product has been approved by off-road enthusiasts, so you should definitely purchase it.

How long does a VIAIR Compressor last?

When looking for compressors, you will come across a concept known as duty cycle. A duty cycle means the amount of time a compressor can operate before it needs to be cooled down. VIAIR states that its 400p air comopressors have been rated at 33 %. This means that a 400p VIAIR air compressor can run for 15 minutes and then you will need to cool it down for half an hour. The 450p VIAIR air compressors, with their 100 % duty cycle, can run for 60 minutes straight. However, this rating is for 100 psi at a standard temperature of 72 degrees Fahrenheit. If you go by the duty cycle methodology, your VIAIR air compressor can last for a long time. However, if you don’t allow the compressor to cool down, it won’t last long. On average, a VIAIR compressor can last for 10 to 15 years.

How do you use the VIAIR 400p?

A VIAR 400p portable air compressor can make your life easy but do several tasks efficiently. This compressor can easily fill 35-inch tires and due to its portability, you can easily carry it around. However, if you haven’t used a VIAR 400p compressor below, go through the instructions below:


As with other power and electrical equipment, you should always wear safety glasses before using a VIAIR 400p air compressor. Once you have the safety gear on, connect your hose to the valve and the power tool to the hose.

Start the Compressor

Before you start the compressor, ensure the pressure gauge switch is off. Plug the power cord in an electrical outlet. However, refrain from using an extension lead as this can cause the engine to overheat. If required, use an additional hose. Then, turn on the pressure gauge switch, this will enable the compressor to build pressure in the air tank. Keep the pressure gauge on until the pressure has reached the desired level. Once you start using the compressor, the pressure will decrease but the compressor automatically build the pressure. Set the psi specification in the compressor, you can do this by adjusting the regulator knob. However, try not to increase the psi pressure recommended by VIAR.

What is the Difference Between VIAIR 400p and VIAIR 450p?

The VIAIR 400p portable compressor is part of the company’s heavyweight class and comes with a 300 % duty cycle. On the other hand, the 450p VIAIR air compressor is part of the extreme series line and has a 100 % duty cycle. The 450p compressor edges out the 400p air compressor because of it 100 % duty cycle. The main difference between the two air compressors is speed, as 450p air compressors doesn’t take long to cool down. However, while the 450p VIAIR air compressor can run longer, it is technically slower than the 400p portable compressor. When these two compressors were tested on a car, it was concluded that the 400p compressor has a fill rate of 37 seconds on 35 inch tires. While the 400p is an air compressor for 35 inch tires and is undoubtedly faster per tire, you could run into a situation where the compressor needs to cool down for half an hour. Both 400p and 450p are worldclass compressors and, but the 450p is a more consistent compressor.

Do VIAIR Compressors need Oil?

No! VIAIR Compressors are oil-less, and you can mount these compressors in any direction you want to.

What Size Air Compressor is good for Inflating tires?

There are a few factors that you need to consider before using an air compressor for inflating tires:


This is the most important factor, and it is the maximum PSI rating of an air compressor. PSI stands for pounds per square inch and is a measurement of the amount of air an air compressor can offer. If the tire requires more air than what the compressor can offer, you won’t be able to inflate the tire with the compressor. The compressor will only be able to inflate the tire partially. For example, if your compressor works at a maximum pressure of 70 psi, and you use to fill a tire that requires 100 psi, you won’t be able to inflate the tire with the compressor. It is best to always use a compressor that has a maximum operating capacity of 10 psi or higher that the suggested tire pressure. So for instance, your tire requires 100 psi, but you should invest in a compressor that is 11o psi or higher.


CFM stands for cubic feet per minute and is an important factor when measuring the CFM rating of a compressor. The CFM rating typically impacts how efficiently and quickly you can fill a tire. However, you should remember that CFM is always measured in the context of the air pressure. For instance, if a compressor can offer 1 CFM at 100 psi, it will probably be able to offer 2 CFM at 50 psi. This is necessary to understand because you shouldn’t be going lower than 1 CFM at the required tire pressure, unless you don’t mind doing fill times with tires.

Duty Cycle

An air compressor duty cycle rating is the recommended time a pump should be turned on during a given usage duty cycle. For instance a duty cycle rating of 50 % means that you shouldn’t let the pump run for more than half time you are using the air compressor. This means that the pump should rest for 1 minute after being in operation for a minute.

Hose Length

Another thing you need to consider is air hose and power cord length. Generally, experts say that it is best to avoid extension cords for air compressors, as they can degrade the motor quality and can cause reproductive harm. It is always better to use a hose that is lengthy, even though this can lead to a loss in power. Since it is not always convenient to bring the tires to the air compressor, you should invest in a portable compressor kit that you can take to the tires.

Size of the Tank

The size of the compressor’s tank will make a differnce in the fill rates and dictate how long your compressor can operate. If you are topping off a tire or two tires, a 1-gallon compressor tank should get the job done for you. However, if you are filling a tire that is empty, it will take multiple fill cycles to get the tired filled completely. Generally, the larger the compressor tank, the less fill times it requires. Portable compressors that have a 3-gallon and 6-gallon tank, are typically better at filling empty tires.

Do I need an air compressor for Off Roading?

Do you require an air compressor for off roading? Yes! reducing the amount of air in your tires while driving off-road is one of the easiest way to improve ride comfort and traction. Off road enthusiasts worldwide recommend carrying an air compressor or a tire inflator so that you can reinflate tires once you leave the trail.

What Size Air Compressor do I need for Bicycle Tires?

A cheap compressor should do the trick for you when it comes to filling the bicycle tires. However, there are a few elements that you should consider before buying an air compressor for your bicycle tires. The more expensive air compressors come with a big tank, and they offer more filling options than cheap air compressors who can just do basic tasks. The increased capacity of air compressors means that they can offer more air before the pressure reduces. That being said, it is not important to have a large air compressor when filling bicycle tires because bicycles usually have small tires. The minimum requirement for bicycle tires is a 3-gallon tank compressor or a low cost 6-gallon tank compressor.

What is the most Powerful 12 volt Air Compressor?

While there are many types of 12-volt air compressors in the market, here is the one that we think is the best one for a vehicle:

AstroAl Air Compressor Tire Inflator

This air compressor is manufactured by AstroAl and it has a total capacity of 35 liters of air flow, which is perfect for filling tires of 0 to 30 psi. Apart from car tires, this compressor can also fill up basketballs, footballs and other inflatables. This product comes with an upgraded cable design which offers a stable air flow and enables the machine to work quiety. The air compressor is equipped with an LED light that can offer illumination in the darkness, and is perfect for dark areas or at night. This compressor also comes with a 2-way nozzle, so you can use it according to the situation or your convenience. Here are some features of this compressor:

  • Wide range of application
  • Handy and compact
  • LED Screen
  • 35 liter air flow
  • Upgraded Cable Design
  • Safety Design
  • Heavy-duty compressor
  • Accurate air compressor model


This article discusses the best 400p air compressors in the market and their features. We also discussed how you can operate a VIAIR 400p air compressor and the importance of purchasing the right size air compressor model for your vehicle. Hopefully, this article will give you some much-needed clarity.

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