Air Compressor RV is life a lifejacket on a boat. The most common RV Air Compressor is a portable unit. The Best RV Air Compressors are powerful enough to fill the air in your tires but compact enough to be tacked away. 

In this buyer’s guide, we will look into the different RV air compressors based on RV class, power, and pricing.

 By now you must know that an air compressor is not a luxury but a necessity for any RV trip. The biggest reason people buy air compressors when they own an RV is the fear of a flat tire in the middle of nowhere.

In other words, you would not want to drive on a flat until the nearest truck stop or RV campground. By doing so, you will destroy the tire for good. Even worse, if you have multiple flat tires you would not be able to make it back to the nearest air pump. 

Top RV Air Compressors

1. Viair 40047400P

The best overall RV air compressor and the one we would recommend is a portable one. What’s important about the best RV air compressor is things like the weight, PSI, size, CFM, and horsepower.

It’s usually small and compact. Because portable air compressors are a huge part of the market, it is not as easy as it seems to pick the right one.

There are many different models with different features, sizes, and specifications. You have the very mobile pancake units and the larger with tank units that are both portables.

For an overall recommendation, we looked at the following units. It is lightweight with the longest air hose and highest CMF. It has a run time of 40 minutes and will fill the tires in under 5. RV owners will never have to worry about time running out before the tires are inflated.

The typical RV tires of 30-35 inches fill in a very quick 5 minutes. It’s quiet and a lot of compressor for the price. It’s powerful.  It’s durable. It’s lightweight. You can’t go wrong with this one.

Viair 40047 400P-RV Automatic Portable Compressor Kit, Silver

 in stock
29 new from $332.95
1 used from $312.74
Free shipping
as of July 5, 2022 1:22 pm


  • Thermal Overload Protector
  • Automatic Shut-Off Function
  • Primary & Extension Air Hoses
  • Vibration-Resistant Diamond-Plate Sand Tray
  • Heat Shielded Quick Connect Coupling

2. Slime Elite Tire InflatorBest Motorhome Air Compressor

In order to answer this one, you have to know the difference between a motorhome and an RV. In most people’s mind there is no difference and perhaps there is no substantial difference.

The RV is a recreational vehicle and in the industry it usually is not the preferred term but it refers to the units like trailers and pop- up tents. They can have some amenities that are like “home”. On the other hand, motorhomes were designed to be “homes”.

They have separate rooms for the bathroom and bedroom and a casual kitchen. There are three classes of the motor home designated by the Federal Motor Carrier Safety Administration and the United States Department of Transportation.

Size, purpose, and weight are the basis for the classification. The different classes have different size tires as well.

Slime 40063 Tire Inflator, Portable Car, SUV, 4x4 Air Compressor, Elite Heavy Duty, Inflate Right Automatic Shut Off, with Digital 99 psi Display, Long Hose and LED Light, 12V, 3 min Inflation

$59.00  in stock
1 used from $46.18
Free shipping
as of July 5, 2022 1:22 pm


  • This upgraded, shock resistant housing Elite Heavy-Duty Tire Inflator is great for 4x4, SUV and truck applications
  • With Slime's Inflate Right Technology, simply set your desired pressure on the display, turn on the inflator, and walk away, it's that easy
  • The Tire Inflator works with your 12-volt car accessory outlet and features a built in backlit digital gauge (0-99 psi), a bright LED light and an extra long air hose
  • Tire sensor safe and includes multi-purpose air adapters for rafts, balls and other inflatables
  • With a direct drive motor and thermal break feature, this inflator airs up a standard tire in 3 minutes

3. Slime 40026Best Portable RV Air Compressor

All of these units for RVs are portable units. Some are in other categories as well. But overall, they are all portable. They are not necessarily compact, but they are portable.

Slime 40026 Tire Inflator, Portable Car, SUV, 4x4 Air Compressor, Heavy Duty, 2X Pro Power, Heavy Duty, with Analog 150 psi Dial Gauge, Long Hose and LED Light, Alligator Clips, 2 min Inflation

 in stock
8 new from $72.23
2 used from $57.06
Free shipping
as of July 5, 2022 1:22 pm


  • This super quiet, heavy duty, fast inflation Tire Inflator is great for 4x4, SUV and truck applications
  • Wrap it all up in a tough, rigid carrying case, and with this bad boy in your trunk, nothing will stand in your way
  • The Tire Inflator has a long power cord with alligator clips for your car battery and features a built in dial gauge (0-150 psi), a bright LED light and an extra long air hose
  • Tire sensor safe, extended coiled Air hose 82cm in length with twist connect
  • With a direct drive dual cylinder motor and thermal break feature, this inflator airs up a standard tire in 2 minutes

Buyers Guide: What To Look For 

  1. Smaller tanks are preferred on an RV.
  2. Fill time
  3. Run time
  4. PST and CFM
  5. Weight
  6. Length of hoses

Rv Air Compressor Adapters

If you need an adapter there are many to choose from. Why would you need one? You would need one because your power cord might not fit the power source at the campground you pull into.

You might be staying at a friend’s who has a generator you could plug into to inflate your tires. This issue is you have a 50 amp power cord and the connection is a 20 amp. Or you have a 15 amp male and you need to connect it to a 30 amp female.

Your air compressor will not come with a bunch of adapters so figure out what you need and purchase it before you hit the road. Here are just a couple that we would recommend you take a look at.

1. Aleko RV50-30-12 12” Adaptors Male 50 amp to Female 30 amp.

Copper is the material that this power cord is made from. It is resistant to corrosion and is waterproof. This dogbone adapter for the RV power cord is male to female and 50 amps to 30.

ALEKO RV50-30-12 12” Adaptors 50amp Male to 30amp Female

 in stock
2 new from $19.00
as of July 5, 2022 1:22 pm


  • This high quality power cord adapter is made of 100% copper wires
  • This high quality power cord adapter is made of 100% copper wires
  • RV power cord dogbone adapter
  • 12” Adaptors 50amp Male to 30amp Female
  • This connector is corrosion resistant and perfect for water-proof applications

2. Kohree Dogbone Heavy Duty RV Power Cord Plug Adapter 15 amp to 30 amp and male to female with a twist lock.

If your RV has a 30 amp power inlet with a twist lock, and you need a 15 amp plug, this is one of the best. The lock is mechanism is a threaded ring. The adapter is 100% copper wire in polyvinyl heavy-duty plastic.

Because of the twist-lock even if you accidentally drive away the adapter would stay connected and would not be lost.

Kohree RV Adapter Plug 30 Amp to 15 Amp 110V, RV Power Adapter 15A Male to 30A Female, RV Dogbone Electrical Adapter Cord 12" with Twist Lock & LED Indicator

 out of stock
as of July 5, 2022 1:22 pm


  • ⚡【Application】: For your RV which is equipped with 30 AMP twist lock adapter power inlet and needs to plug into 15 AMP power source.
  • ⚡【Electrical Rating】: MALE Plug 15Amp is NEMA 5-15, 125V. FEMALE Receptacle plug 30Amp is NEMA L5-30R, 125/250V, Load 3750W, 10/3 gauge STW wire.
  • ⚡【Twist Locking Receptacle】: 30A Female locking connector is watertight molded plug with a threaded ring for weatherproof connection.
  • ⚡【LED Power Indicator】: 30 amp to 110 adapter RV plug designed with the LED power indicator will glows green when there is power.
  • ⚡【Safety】: Molded RV dogbone electrical adapter cord made of heavy-duty polyvinyl plastic, 100% copper wire.

RV Class Sizes 

Class A

These are the largest and always considered a motorhome though most of us still call it an RV. They are usually luxurious with living rooms, kitchens, bedrooms and large bathrooms and perhaps a bunk sleeping area. Six to eight people fit comfortably on a regular basis.

Class B

These units are smaller than Class A and they tend to be taller to afford more space. They usually don’t have separate kitchen and dining areas.

They have one bedroom and then sleeping spaces in the living room and the dining area. One bath with a stand-up shower. Usually only 2-4 people can be comfortable in it.

Class C

This is not usually considered a “motorhome” by most people, but it is by the government and for sales purposes. It is in between the Class B and Class A size-wise. It can have as many as 6 people sleeping comfortably.

They are usually about 20 feet long with shower and bathroom, separate kitchen and at least one bedroom area over the cab.You also have campers and trailers that you pull with your own vehicle. The weight and PSI of the coaches are as follows.

Frequently Asked Questions 

Q. How Does An Rv Air Compressor Work?

An RV air compressor can do several things for you when you are traveling, but its primary function is to keep your tires inflated to the proper level of pressure or PSI – pressure per square inch. 

An air compressor provides power to fill tires, beach balls, and basketballs by compressing large amounts of air. The air compressor is driven by either electricity or gasoline.

The kind of air compressor used on an RV operates a lot like your car’s engine – with a pistol and a cylinder. This motor pushes the air into the tank, then pressurizes it. This will continue until the tank is pressurized as much as possible.

It is the combination of Pressure per Square Inch (PSI) and airflow Cubic Feet per Minute (cfm) that gives the air compressor the level of power you need for your RV functions.

Q. How Do You Winterize A Camper With Compressed Air?

When the summer ends and after you make your autumn trips, it’s time to put your RV away for the winter.

First, you need to winterize your vehicle and you use your air compressor to do so. You must remove the water from the water lines to protect

With your air compressor, you can blow the water out of all the lines without any trouble. You will do fine with a 20 gauge tire inflator. Once you have done this, you can now store your RV safely over the winter.

Wear & Tear of RV Tires 

Air temperature impacts the inflation level with cold deflating them and heat leading to a malfunction. If your tires are less than optimally inflated, you could have an accident or at best a need to stop on the side of the road and find a fix for the problem.

Driving for any distance on underinflated tires will impact the durability of your tires. Knowing you need an air compressor the question becomes what is it that you actually need? This is dependent upon what type of RV you have, what type of tires you have and what if anything besides tire inflation you will use it for.