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

Awesome compressor, I placed this under my seat in the Jeep to air up tires after getting off the trails. It’s very versatile and easy to install with a little basic knowledge of wiring. Comes with pretty straightforward directions. Be aware there are knock offs out there for cheap but I would recommend ARB.

Very well built, easy installation. Great Compressor

I bought through Amazon Warehouse. It arrived as described and complete though the mfg packaging box had lived a hard life. Nonetheless the internal packaging for small parts had not been opened which let me to believe the compressor was not used and returned. It pumped up to pressure with no issues. The wire harness is a bit of spaghetti to sort out but it works just fine after you take time to read the super detailed step by step instructions.

I’ve ordered $10 items off of Amazon their box better than this $500 air compressor. Hopefully ARB made these strong because this box looks abused.

This compressor is highly thought of, but I found several issues that I would not expect in a high end product: 1) The housing at the outlet port appears to be made of cast aluminium, and cracked causing a huge air leak. 2) The steel shroud protecting the outlet side of the compressor unnecessarily interferes with the installation of a fitting to the outlet port. 3) The electrical connectors connecting the wire loom to the compressor are difficult to lock. On the positive side, this compressor fits into small spaces, and is pretty easy to install. I am exchanging the compressor for a replacement, and will update this review if necessary after I receive the replacement. UPDATE, FEBRUARY 8, 2018: I have received and installed the replacement compressor. Sexton accepted the faulty compressor back with no hassle whatsoever. Given the good response, I have upgraded my overall rating from 3 to 4 stars, For those thinking about running any sort of air tools from this compressor, you will definitely need an air tank. Dont count on more than a 20% to 40% duty cycle as this compressor cant keep up with any more. This is not a fault, this compressor does everything that it was designed to do. It is fine for inflating tires, air mattresses, etc. I am able to run a pneumatic impact wrench in short bursts to remove lug nuts with the addition of a small (500 ml) air tank. Overall, I would buy this compressor again.

First, if I could give it 6 stars, I would. Before the nitty gritty details get fleshed out, you will love this compressor. Set up: it is very important to spend time to choose a location in/on your vehicle that is cool and within your skill set. If you choose the rear of your vehicle you will need large Guage battery wire to add onto the supplied wire (which is more than long enough for installation in the engine bay). If you choose to run the switch into your dash you will need to prepare, find two connections (an ignition source and power source). This means you need to have adequate skills to run wires through the firewall, find and splice wires, and cut an opening to mount the switch. Do yourself a favor: be prepared with a plan before you begin installation. Connections: I chose to keep the switch and all components in the engine bay, as seen in the picture. That said, Jeeps have gigantic engine bays. I used a fuse add a circuit. It cost $10 at Autozone and it took about 3 minutes to connect. I would recommend the same approach if you choose to install into the dash, it is that easy. Mechanical connections; it comes with all you need to set up but you will to buy the specific pieces you need for your setup (again, PLAN ahead). Use: I have 31 tires. It took me longer to let air out than the compressor did to inflate them. I aired down to 10psi then inflated to 45psi, it was done in about 10 minutes. Get yourself a Guage pressure tool and you will cut at least 1 minute off. In that ten minutes the compressor reached a few hundred degrees ( I know because I accidently touched it, big dummy). So, again, find a cool and open location. I am seriously amazed. The finished installation runs around $300, depending on your custom setup. For an inexpensive option this tool is well built and performs its given function quite well. I want one for each of my other vehicles. Buy it, NOW.

This compressor is great, and I would expect nothing less from a company like ARB. I mounted it under the hood of my 2006 Jeep Wrangler TJ, and use it strictly for airing back up after a day on the trails. Will air up all 4 tires from 15psi to 35psi in about 10 minutes. Not bad considering the space and cost of this unit. Will also run air lockers if you choose to go that route. Not much else to say, it is just a compressor. The harness that came with the unit is great, really made for a simple and easy install. Switch fit into the stock TJ blank switch spots with slight modifications (nothing a small file couldnt fix). Worth the money by far. The only gripe I have about it, is that I didnt install it sooner :)

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.

The ARB twin compressor is impressive. I had a a Viar in my old Jeep and it did it’s job but I wanted a higher end compressor so this seemed like a good choice. It dropped my air up time from 16 minutes to only 5. That’s fantastic. I thought that the install was pretty straightforward. I used a mount made specifically for my TJ and have it over my engine. Wiring it up was really easy with ARB’s harness and switch. The only things I didn’t like, was that there are no fittings included to connect to an air hose and that I had to use an extension nipple to get past the cover to connect a quick disconnect.

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.