ARB INFLATION3 Twin High Performance Air Compressor CKMTA12 and Extension Hardware for Easy Installation and Connection in a New Printed Box, Ideal for Lockers, Horns, Tire Inflation and Air Tools

Ordered this from a warehouse deal as new in original box. Even had the inspection sticker on it from Amazon that it was all there. Parts were missing (air filters, switch, brackets, the instructions, and wire harness was cut and spliced, scratches all over the compressor). Needless to say it wasnt in like new condition and had been Installed and then thrown back in the box. I know its not ARBs fault but come on Amazon, do a thorough inspection before you put it back on the shelf. The person that bought it before me basically stole a bunch of parts and through it back in there. The only reason for three stars is because ARB compressors are great and the product itself deserves five stars.

I purchased this compressor to mount under the hood of my Chevy Colorado. I ordered the compressor and was surprised to have it the next day. I had used the free shipping that stated 5-8 days. I was very surprised. I opened the box to find the compressor and parts to be in excellent condition. The box contained everything needed for installation. It even had ring terminals and connectors to wire the harness to the battery. I was very happy with the wiring harness as well. The harness that is supplied with the compressor is designed for lockers, but I am using this compressor for tire fills. The harness was labeled very well and instructions were clear. I had no trouble with the wiring harness. The harness is plug and play. ARB even leaves one plug disconnected so only a small hole has to be drilled to get the switch to the cab area. I simply taped off the wires that I was not using. The wiring had a nice looking switch that is designed to be recessed in a small cut out. I found the switch to be good. The location I mounted the compressor was very tight, but the mount is made to pivot. I was unaware that the compressor body and manifold tube can also be rotated to facilitate various mounting locations. The compressor itself was heavier that I expected, but that was great. The compressor feels well made. I mounted the compressor and made the appropriate wiring connections under the hood. I actually mounted the switch under the hood as well. I used a small plastic gang box used in home wiring and used a Dremel Tool to route out a hole for the switch. I then used a metal plate to cover the box. I was then ready to use the compressor for the first time. I hit the switch and the compressor fired right up. The compressor only ran for about two seconds and shut down. The compressor comes with a pressure switch that shuts down the unit at around 90-100psi. The manifold tube is very small and it gets to that pressure very quick. The manifold tube also has a built in pressure safety relief valve just in case the pressure switch fails. I am not sure what pressure is required to permit the safety valve to operate. I had to source my own fittings to use the compressor as a tire fill unit. I did not purchase the kit offered by ARB because I can build it cheaper myself. I spent an additional $15.00 to make a manifold for my tire fill kit. I had to buy several pieces due to my mounting location under the hood. I also suggest to anyone that purchases the ARB tire fill kit to buy some Teflon tape. I completed the procedure and was ready to fill a tire. It should be noted that I already had 50 feet of 3/8 air hose and fitting to use the compressor. I wanted enough hose to reach from the engine bay to the tires on my travel trailer without uncoupling the trailer. I had been carrying a portable air tank in my truck that holds 120 psi. I decided to test the compressor by filling it up. I turned on the switch and watched the hose fill with air. The compressor then promptly shut off as designed. I filled my air tank from approx 40 psi to 90psi in approx 1 1/2 to 2 minutes. The compressor stopped filling at 90 psi. I was still impressed at the speed given the size of the compressor. I filled a car tire from 10 psi to 32 psi the next day and was equally impressed at the compressor. I think it was a wise investment and would buy it again if I had to go back. My installation took my friend and I two hours to complete. I had a small area to work with and had to build some tools to install some small screws in a tight place. I think my installation time was long, but I had a unique mounting location. Anyone with basic skills could install this compressor easily. I needed to drill three holes. The mounting plate has four holes, but I didnt use one due to mounting location restrictions. This is a good compressor and I hope to use it for many years. Good luck.

This little gem is the best compressor out there for size and weight. The dual compressor is nice too but its over double the weight and with a 100% duty cycle I can sit in the Jeep and wait a little longer while I air up (I have tpms). Its a pricey little bugger, but Ive bought two of them now for both Jeeps. Buy once cry once!

Absolutely love this compressor, I mounted under my seat to avoid the heat of the engine to hopefully prolong its life.

Heavy duty. Tested putting the bead on a 33”x10.5”r17 and it did great. Fills tires fast. Major complaint is the instructions suck. I got the air up kit too and ended up running pipe out of a splitter on top in my GX470.

Seems like a quality product. I traded for a portable unit. I did not want to deal with all the wiring and finding a suitable place to mount the switch.

So batteries died the 2nd time I went to use it after the first week, no problem get new batteries. Then it stop reading how much pressure the tires have. Just always reads Zero now so I just been eye balling my tires when I air up Then the valve is just stuck open so it’s always blowing air So out of all the things it does atleast it gets the main job done and airs up my tires

Comes with wiring harness for the compressor and also built into the harnes 2 more switches for your air lockers and also comes with one rocker switch and a wiring diagrams the only trouble I had wiring was what the diagram said “ignition” that held me up for a couple of hours I ended up splicing it to the cigaret lighter because it only turns on when the key is in the ignition. You will need to buy seprate the tire inflator kit in order to use it as a compressor also u will need a tank if you wish to run air tools if u don’t want to use a tank get the arb twin compressor it can work your air tools at a constant rate.

I am creating a overlanding hybrid vehicle out of my 2018 Nissan Titan. Finally got this installed took some effort and some help from a friend who is a beast at fabrication at Distinctive Designz was able to get this mounted under the truck tucked right behind the gas tank. Ran hoses for the front and back and filter hoses. It works perfectly and is very convient having my own air for any number of reasons.

Setup is rather intensive, but ARB gives you everything you need (except the butt connectors). I was able to mount it in on a plastic interior panel in the rear cargo area of my Jeep Cherokee XJ. Its loud and gets REALLY hot, but it works great and has given me no problems since I installed it a few months ago. It will fill one 31 x 10.50 tires from 12 to 33 psi in 1 min, 45 seconds.