ALL-TOP Air Compressor Kit, Dual Cylinder 12V Portable Inflator 12.35 ft³/Min, Offroad Air Compressor Pump for Truck Tires, Heavy Duty Max 150 PSI for 4x4 Vehicle & RV

Well, I just received this Alltop twin cylinder 12VDC compressor. The packaging was great. It was actually triple boxed. It's own box with pictures and descriptions. Then a "packing" box with styrofoam. Then Amazons box. So, I was fairly assured the unit would be in great shape when "un boxed". While the compressor does come with it's own air fittings, they are industry standard fittings. So, it's quite possible that your home air tools, i.e. blow guns, extension hoses etc. will work. It all depends on what kind you have. As for performance. Well, here's a down to earth test. WE run 315 70 17's on our 2015 Jeep JKUR. When it comes to trail tire pressure, I've been running 10 psi for decades and have never had any issues. So, for this test, I bled one of my 315's (basically the same exact tire as a 35" tire) down to 10 psi. I then connected the compressor to the Jeeps battery and the hose to the tire valve. I started both the compressor and my phone's stop watch at the same exact time. Not knowing what kind of exact pressure is in the tire at any given time, which has been stated by many on here, I gave this compressor ONE MINUTE of pumping before I hit the power button on it to stop it. With the Jeep engine running, that gave the compressor full voltage to use while pumping. At the end of one full minute of pumping, my 315 had been inflated from 10 psi to 25 psi. So far, so good. So, I bled that tire down again to 10 psi. I reset my phones stop watch and then, hit the power button on the compressor and the phone. This time I gave that compressor 1 minute and 15 seconds. At the end of that session, that 315 was sitting at 31 psi which, is my street pressure. Soooooo, with all that being said, at this time, I'm pretty darn happy with its performance. It is a tad LOUD but, what 12V compressor isn't!!! I had a Viair 400P before this and that compressor would take 2 minutes and 45 seconds to air my 315 from 10 psi to 30 psi. I'm not one for lolly gagging around at the end of a trail day. I just like to air up efficiently and then head on back to camp or home or ? THEN I can relax. So, this compressor is about as fast in airing up a 315 from the low pressure of 10 psi to my street pressure of 30-31 as you can get for a 12V compressor. And for the money, I think it's well worth it. The CFM on this compressor is over twice as much as a SB one and it's only $3.00 more so, WHY NOT! 11/21/23 edit: I've received some repetitive questions on this little compressor so, I thought I'd take a minute to answer to the general public just in case they're thinking of this unit. The question that's been asked more than a few times is: "Will this compressor shut off when it reaches it's max pressure"? NO, IT WILL NOT! To the best of my knowledge, none of these 12V compressors have a built in pressure switch. But, I've not bought them all so, I really don't know. I do know that the All Top didn't. So, here's the mods I did to this compressor to accomplish a few goals. 1. These compressors, like ALL 12V compressors, will get extremely hot when used to pump air back into todays large jeep/truck tires for street pressure. If you don't think they get hot, you're mistaken. ALL compressors build heat when compressing air, it's a given. That's why all your commercial compressors used *finned* supply lines from the compressor heads to the tanks. Soooo, I added THREE computer cooling fans. One for each cylinder/head and one for the center manifold. Those fans are hard wired into the power plug. They come on immediately when the power is plugged into the compressor. 2. Since these compressors have no regulation to automatically shut off at a given pressure, I added a pressure switch. It cuts in at 85 psi and cuts out at 100. I installed it right in the rectangular manifold. 3. I completely discarded the printed circuit board that comes with the unit and wired in my own 125 amp relay to handle the large current required for turn-on and turn-off. 4. I added a small toggle switch to control the power to the pressure switch. 5. I also discarded that junk power cord that was permanently attached to it. Some may like it but I was not a fan of that cord. 6. In place of that cord, I installed an Anderson SY-50 connector and bolted it right to the cage of it. To power the unit, I build my own 6' power cord from Stinger brand ultra-flexible 4 gauge wire/cable. This wire/cable is so flexible it's like a fully cooked spaghetti noodle! I installed Anderson SY-50 connectors at both ends. One is for the compressor and the other is for plugging in to a mounted SY-50 connector on the front of our Jeep. I don't even have to lift the hood to get this compressor going. 7. I was not a fan of that little short hose that was permanently attached to the manifold. So, I removed it and drilled and re-tapped it for a standard quick release fitting that many of us use at home etc. So now, instead of burning that new little compressor up each time I stop to check pressure, that unit stops dead on its own. I plug in that 6' power cord to it, the three 70mm x 15mm computer cooling fans automatically turn on, then I turn on the little toggle switch, the compressor runs for approximately 1/2 to 1 second and auto-shuts down. I then break out my Flexilla 25' flexible air hose and connect it to the compressor. Again, that compressor runs for approximately 1-3 seconds to fill that air hose and then shuts off. When I begin to fill a tire, I give it around one full minute to get about 90% of what's needed for street pressure then release the trigger on the air chuck. Within approximately 2 seconds, that compressor shuts off! I then give it about 15-20 more seconds to reach my particular desired street pressure of 30 psi and at that time, the compressor shuts off. All the while, those fans are running and blowing air directly onto those heated cylinders and heads and manifold. Waaaaaaay better than just letting ambient air try and cool it down. By the way, all those components/parts that I added, really didn't ad any bulk or any appreciable exterior measurements. It's almost as compact (if ya wanna call this one a compact compressor) as it was from the factory. Now, one more thing. OBVIOUSLY, since I did a zillion modifications to this unit, I threw the warranty right out the window! If this little compressor goes up in flames tomorrow after owning for a month and only using it for one or two times, then it's all on me. I eat it. But, to me, the modifications and the ultra beneficial results of auto-off-on, the fans, the elimination of that junk power cord and more, were/are worth it. I'd do it again in a heartbeat!

This thing is a beast. It's super powerful and you should be running with this with at least a 2 tire at a time inflation system at min, or better a 4 tire at once to really take advantage of the flow which is significantly more than a single valve stem can flow. It had all 4 tires from 15psi back to 50psi in like 90 seconds or 2 min. My old pump would take closer to 8 ish min per tire. The LCD display and ability to preset the pressure to fill to is really awesome too. Not having to babysit it and shut off the pump to check is great. It will do quick auto-stops to self check the pressure and ensure it's good and then continue pumping. If you are out offroading and airing tires down regularly this is a killer piece of kit to make that better. I combined with an Outran 4 Tire Inflation Deflation System which worked out well.

THE BEST AIR PUMP IN THE INDUSTRY! Way better than an sir tank. This inflates my RZR 37 M/T tires from 8psi to 35 psi in a under 5 minutes. Compact and reliable. ALL TOP CUSTOMER FOR LIFE!

Exactly what I needed for off roading. I run 35x12.5x17’s on my JKU & usually deflate to 20 psi. This compressor can get each of my tires to highway pressure (35 psi) in about 2 minutes. From set up to filling 4 tires to put away took about 20 minutes. My biggest complaint is the in line pressure gauge is pretty much useless (cost one star) it won’t read the pressure while you’re filling the tires, you either have to disconnect the hose to get a reading or shut the compressor off. There are a couple of other very minor like the battery clamps are a little tricky on my battery post connectors (see my video) but I figured out a couple tricks to make them work. It is much bigger & much heavier than I was expecting (don’t plan on hard mounting this under the hood or your seats) & I doubt the carry bag will last more than 2 trips. Other than that, it seems to be sturdily built, works well so far & is far less expensive than the smaller off road compressors being offered at the 4x4 shops. If your needing portable compressor to air back up at the end of the trail but then this should work just fine.

It is WAAAAY faster than your average $20 inflator made mostly of plastic, and this thing is built like a tank. I've only used it a few times, the most strenuous was taking two 34" tires from 25-30psi to 58psi or so. Obviously things go faster on the low end, but the upper end ain't no slouch either. I can see the weight/size of it being inconvenient for some people, but am fairly certain anyone bothering to look for this class of inflator is not the sort who would be bothered by such things. You'll probably be more bothered by the pressure gauge/shutoff, which was fairly spot on when I did some testing. Later, when I didn't have a physical air gauge, I let it go through the paces and it ALWAYS buzzes one of the longer cycles near the cutoff, takes a break, then gives it one more fart and stops. Watching the numbers and barely paying attention to the runtime, something seemed a little off. Yoinked the hose off the valve stem, put it back -- dead on same reading. Yoinked the power, yoinked the hose, clamped 'em both back on and it read a few PSI higher. Well, I know how uptight some people are about things needing to be precise, so I was just putting this out there. We all get it. Pressure gauges/switches ain't rocket science, and at this price you'd expect better. Well, I don't. The pressure switch probably using a piezo crystal, pressure is measured close to the air source which is subjected to massive temperature change, and the air hose has a fairly small internal diameter. That's a lot of moving parts (not really, but really) over a fairly long distance, and the electronics can only make a calculated guess. It doesn't know air temperature, tire size, skull thickness, etc. Maybe it under inflates a hair, maybe it over inflates a hair. Whatever. The shutoff feature is there to keep things safe in case you need to step away for a minute. If you want an inflator that shuts off accurately within 0.1 PSI, get a wimpy one that takes 30 seconds or more to put 0.1 PSI in. That way you can go in the house and make a sandwich while you wait, because you get grumpy when you're hungry. Alternately, get this thing plus a deflator attachment and a good pressure gauge. Heck, the pressure gauge is essential anyhow as you'll want to occasionally check this thing's calibration. For me, this thing delivered exactly what was desired: it made the tire round and self shutoff at close the f enough. This was the more than I ever thought I'd spend on an inflator, but far less than I've wasted over the years on crappy ones. Money well spent.

I don’t write a lot of reviews. But I must say I’m extremely happy with this compressor. I very much love the auto stop when I release the handle. It does a phenomenal job of airing up my tires on my Rubicon. I needed a portable compressor for my off-roading fun with an auto stop. It uses standard US sized hoses, which I needed to be compatible with something else I have. My only complaints but not huge. It seems like the air gauge when I release it shows I have slightly less air pressure than I actually have by a pound and a half. Not a big deal. I carry a very small digital reader as well. Also, the rubber on the bottom of the compressor unit could be a little more tacky/sticky. On the smooth garage floor when I use it, it seems to vibrate and move across the floor too much. I believe I can come up with a solution to that barely easily with a small portable rubber mat that won’t slide. Should be fine off-road I’ve only used it once last night and it was phenomenal. So happy with it overall.

This could cost 2x what it did and it would still be a great purchase! The dual pump design, solid construction and the quality of the hose and accessories they come woth it is superb. I have no complaints, only compliments for ALL-TOP and the products I have purchased from them. They may not bebas big a name as viar etc but they are every bit the quality and because their name isnt quite as big yet you can still get a decent price on their gear I have now bought quite a few of their products and across the line I have been impressed. I will stick with their brand in the future if they have what I am looking for. 5 stars+

After watching many reviews, I bought this air compressor to air up and air down a Baja Bug and a Toyota Tacoma when off-roading. It’s a great simple fast compressor.I bought this with the nova auto multi tire filling system instead of the alltop brand as it was half the price. It took three minutes to air up four 285 70-17 from 15 psi to 32 psi. Super fast and with the multi tire inflation kit, it’s easy to check the tire pressure as you fill it instead of using the type that has the automatic shut off which I feel like is one extra thing to fail. I just bought a rigid toolbox at Home Depot to keep it and the hoses and the tire patch kit in since it doesn’t come with a real durable case. Just an FYI, buy a 6 foot giraffe brand air hose with two female ends so that you can connect the compressor to the nova multi tire airing up system. If you buy the all top brand it comes with the fittings.