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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Monday, Nov 9
At a glance
- Condition
- New
- Size
- Original Portable
- Capacity
- 1.8 cu ft
- Dimensions
- 12.4"L x 5.8"W x 7.5"H
- Weight
- 13.1 lb
- Color
- Silver
- Material
- Alloy Steel
- In the box
- (2) 30ft coil hoses (60 ft total reach)12-Volt CompressorCarry BagPre-mounted vibration isolated sand trayTire inflation gun with inline 150 gauge PSI and deflation button
Features 5
- PORTABLE 12V TIRE INFLATOR: The VIAIR 450P-RV Automatic portable air compressor delivers up to 150 PSI for RVs, trucks, Jeeps, SUVs, trailers, and other large vehicles. Built for demanding inflation tasks, this 12V air compressor offers a 1.80 CFM free-flow rate and dependable performance for travel, camping, roadside emergencies, and routine tire maintenance.
- AUTOMATIC PRESSURE OPERATION: An integrated pressure cut-off sensor automatically cycles the compressor while the inflation gun is engaged. This automatic tire inflator design makes it easier to move from tire to tire, check pressure, and continue filling without repeatedly switching the unit on and off, providing a more convenient experience during RV and truck tire maintenance.
- BUILT FOR LARGE RV AND TRUCK TIRES: Designed for Class A motorhome tires up to 42 inches, this RV tire inflator also supports trucks, SUVs, Jeeps, and trailers. The included close-ended gas station-style inflation gun provides controlled airflow and convenient pressure checks, making the unit a practical truck tire inflator for roadside, campsite, or garage use.
- 150 PSI CONTINUOUS-DUTY PERFORMANCE: This heavy duty portable air compressor runs from a 12V vehicle battery and provides a 100% duty cycle at 100 PSI with a 1.80 CFM free-flow capacity. Built for extended operation, it supplies dependable inflation power for large vehicle tires while the engine is running and the compressor is connected directly to the battery.
- TRAVEL-READY STORAGE: This portable tire inflator for truck and RV use packs neatly inside the included deluxe carry bag for organized storage and transport. Keep the compact unit in an RV compartment, truck bed, cargo area, or garage so it is ready for road trips, camping, routine pressure checks, and emergency tire inflation whenever needed.
Description
Be prepared for tire emergencies with the VIAIR 450P-RV Automatic Portable Compressor, the ultimate automatic tire inflator kit that assures reliability whether you are embarking on a leisurely road trip or facing an unexpected flat tire. Tailored for RVs, but also capable of handling trucks, jeeps, and SUVs with tire sizes up to 42", this portable air pump ensures peace of mind during every road adventure. The automatic portable air compressor is ideal for tire-to-tire transitions or when you want to check pressure mid-inflation. By eliminating manual on-off switching and streamlining the inflation process, our air pump will help increase efficiency and help you get back on the road quickly. The kit comes with a close-ended gas station-style air gun for added convenience. The heavy-duty carry bag, included with the air compressor kit, enhances portability and stowability, ensuring no more scrambling during emergency situations.The tire inflator kit operates on 12-volts, delivering up to 150 PSI maximum working pressure and a 100% duty cycle; the free flow capacity is 1.80 CFM. The automatic air compressor operates for up to 1 hour at a time before needing a rest. The engine needs to be running during use for seamless operation.
Specs 33
| Brand | VIAIR |
|---|---|
| Voltage | 12 volts |
| Recommended Uses For Product | Tire Inflation |
| Power Source | 12v DC SAE |
| Noise Level | 69 db |
| Noise | 69 db |
| Additional Features | Portable |
| Maximum Power | 318 watts |
| Capacity | 1.8 cubic feet |
| Maximum Current | 23 A |
| Air Flow Capacity | 1.8 cfm |
| Compatible Hose Diameter | 0.11 inches |
| Hose Length | 60 feet |
| Maximum Pressure | 150 psi |
| Item Weight | 13.1 pounds |
| Item Dimensions L x W x H | 12.4"L x 5.8"W x 7.5"H |
| Color | Silver |
| Style | Original Portable |
| Brand Name | VIAIR |
| Model Number | 45053 |
| Model Name | 450P-RV Automatic Portable Compressor Kit |
| Number of Items | 1 |
| Manufacturer | Viair Corporation |
| UPC | 818114004575 |
| Unit Count | 1 Count |
| Manufacturer Warranty Description | 1 year manufacturer defect warranty |
| Number of Packs | 1 |
| Global Trade Identification Number | 75 |
| Item Type Name | Portable Air Compressor |
| Manufacturer Part Number | 45053 |
| Material Type | Alloy Steel |
| Item Highlight | Automatic 12V tire inflator delivers up to 150 PSI for RVs, trucks, SUVs, Jeeps, trailers, and tires up to 42 inches. |
| Part Interchange Info | 45053 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Powerful, Sturdy, Reliable
Style: Original Portable
I purchased this hoping it would be strong enough to air the tires up on my motorhome. I have a 40' diesel pusher with a tag axle, so 8 tires with a 135psi rating. I was impressed with the construction when I took it out of the box. Its built very sturdy. from the carry case to the hoses to the compressor itself. Everything is built with quality parts. The first time I used it I was able to pull my pickup in front of my motorhome, connect it to my truck battery (Leave your vehicle running while inflating tires) Set the compressor un the ground and connect the hoses. They reached down both sides of my RV without me having to move anything. I connected it to my tires and watched it work. My tires were at approximately 83 psi. So fairly low. It took about 10 minutes per tire max to inflate the tires. For me, that's not long at all. The compressor ran great, filled all my tires up without a single issue. One thing to note. It does get very hot so make sure you don't touch the metal until its had a chance to cool off. I'm very impressed. I would recommend this to anyone wanting a quality inflator without the bulk of a storage tank.
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Reviewed in the United States on September 24, 2019 by J. Campbell
Pricey, but just the ticket for 110 PSI tires.
Style: Original Portable
Pulling a 43 foot 5th wheel from NY to Florida every year and back again. You start in Florida with 110 PSI, as you get closer to Pennsylvania, you may only have 90 PSI due to temperature changes. Or you may have had 110 PSI when you got to Florida, but after being there for 5 months, the tires lost a little air. I read many reviews and recommendations and knew that the typical car tire inflators were not going to be up to the task. This unit was recommended by a number of RV sites, and I have been very pleased with it. The 1 hour continuous duty was important to me in that I have 4 tires on the RV at 110 PSI and 6 tires on the truck at 80 PSI. I can quickly top off all tires and don't have to worry about maneuvering in truck stops to find a working air hose. The included hoses (one 30 foot, and one 30 foot extension) are more than adequate to reach all tires on the truck and RV and everything that you need is included in the bag. The compressor is solidly built and about what you would expect noise wise. The bag is fairly bulky due to the compressor size, but that is to be expected. I really struggled with the cost, but in the end felt that this is one of those things that you truly get what you pay for. I have no regrets in purchasing this Viair 450 P RVS compressor.
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Reviewed in the United States on May 29, 2025 by JBM
I've been needing this for SO LONG!
Style: Original Portable
Viair has been recommended to me by so many RVers! I finally broke down to get this one. My RV tires require 110 LBS of pressure (4 tires), and this will do the trick. My camper came with an "on-board" air compressor.... but it's too "sissy" to air up it's own tires! It was only intended to use for toys, bikes, pool blow-ups, etc., not the camper's tires. SO disappointing that one needs to have 2 air compressors. If there's a way, I will remove the compressor that came with the RV and use the viair only. I've already used it to help me winterize the water system. Amazing tool, amazing bag, great product!
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Reviewed in the United States on December 1, 2025 by JanneZack
High Quality and Flexible
Style: Original Portable
I have several VIAIR pumps. Unfortunately the last one was stolen. I believe this one will be my favorite for the following reasons. Number one is the auto shut off. Many units require that you return to the pumps to shut it off. In the past I would over fill the tire, return to the pump, shut it off and then return to the tire and reduce air to the proper pressure. Doable but extra effort. Number two is the continuous run cycle. Many units can run for 15 minutes then require a 30 minute cool down time. While maybe not important to some why risk it and have the auto thermal protection shut it down and wait 30 minutes. As an added bonus I suspect to get the continues run time the rpms on the motor have been reduced and the unit is pretty quiet. Number three the supplied air gun has a bleed off button which allows you to reduce air pressure easily if you over fill. Number four the unit comes with two hoses, the extension for dully tires and the air gun with gage so you are ready for most anything. Number five the whole package is small enough to fit under most SUV's back seat. It is high quality and not cheap like some you see in some discount stores and gives you a "get to the tire store" back up as well as avoids you having to locate a gas station with an air pump, chunk in quarters and hope it works for a simple air top off. About the only downside I can see is because the gage goes to 170 if you routinely fill passenger 32 LBS tires you may want to add a smaller scale gage for a bit more accuracy. My package also came with the screw on valve connection. Very solid but if you do a lot of tires the "flip down" one would be quicker. It is available separately. Note the hoses I got were black which I prefer.
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Reviewed in the United States on January 16, 2017 by Amazon Customer
Great Product
Style: Original Portable
Only product we have had that could hold up to inflating our motorhome tires. All the others burn up; and you are lucky if you get one tire aired before it goes. I have been using this now and it works great. I can do all the tires at one time if need be. The gauge is off when filling; but I have been able to figure the 7 lb difference. Also, not happy with not being able to run it on A/C or shore power. You have to use the battery; and I am not a fan. If I had the option of using shore power as well as a the battery; I would give it 5 stars. Best on the market that I have found so far.
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Reviewed in the United States on January 11, 2024 by mbpritchard
Great Portable Pump- Highly Recommend
Style: Original Portable
I originally purchased one of the lower-cost portable air pumps (100psi, 10-minute runtime before overheating). I figured it would be able to handle filling one 275/60R20 pickup truck tire. I was wrong. After 10min of running, that pump went from 15psi to only 34psi with a target of 40psi. Even the airline was too hot to touch. Fail. Enter the VIAIR 450-P that arrived today. Same tire, starting at 15psi... it took the VIAIR pump just over 2 minutes to inflate the tire to 40psi. Immediately after, I filled the other three tires from 35psi+/- up to 40psi, each very quickly. The pump body never raised in temperature. The entire package seems to be good quality. I was a little worried that the coiled airlines were too rigid, but they're not. With the pump at the front of the (Crew Cab) truck and hooked to the battery (truck running), 1 airline easily reached to the rear tires. The VIAIR pump is much quieter than the my cheaper pump. The auto turn-off when you're not filling a tire is a nice feature. The air gun also has a button to release air, if you go too high. The bag has extra room for tire plugs, etc. Mine also came with 2 extra air filters for the pump. There's a few comments about having to hold the trigger while filling the tire. True, but the 450-P pumps up the tire fast enough that it really isn't an issue (for me). The air gauge is off about 1-2psi, but it's not built to comply to rigid engineering standards and regulations. It's an air gauge for the masses, and mine was very close. Except for the price, I can't knock this VIAIR pump... but I'm willing to pay for the proper tool for the job.
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Reviewed in the United States on October 15, 2017 by lawdog
Great item!
Style: Original Portable
Works great! Does just what I expected!
Reviewed in the United States on May 10, 2026 by Floyd Johnson
Quality compressor for RV'ers
Style: Original Portable
We had been carrying around one of the standard cannister style compressors in our RV for a couple of years. It was 150 psi max, but as most people know, filling the 110 psi+ tires on an RV is near impossible. So I invested in the Viair 45053 RV edition. It was pricey, but I thought maybe it would make life easier. And it did. The unit weighs less and is smaller than the compressor I was carrying around before. It also comes in a bag with pockets for the attachments and hoses, so everything is more consolidated and compact while in storage. Things to know before buying: * This does not plug into a normal wall outlet. It attaches to your vehicle's battery. * This unit does not have a cannister (in the normal sense) and operates oil free (keeps it lightweight and small). * Filling a 110 psi tire can take a while, depending on how deflated the tire is. It's not a fast process. Don't get impatient. * You'll be a lot happier if you can use the screw-on adapter to fill the tires because it will save your hands. Take advantage of it when you can. Honestly, I was expecting to be disappointed simply because so much stuff I buy for the RV on here turns out to be 'less than optimal'. :-) But I am not disappointed. I've used this item to inflate the RV tires (all 6) and even our e-bike tires. I'm hoping it's the last compressor we need for years to come.
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Reviewed in the United States on April 12, 2023 by James Rogers