ARB Twin Air Compressor Kit 12 Volt - CKMTA12

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This compact vehicle mounted compressor has been designed to do everything! Activate your ARB Air Locking Differentials, air up a 35" tire in less than a minute and run air tools. This 100% duty cycle, 6.16 CFM compressor is built to support all of your compressed air needs. Includes a full wiring harness, air locker solenoid terminals, OE-grade compressor isolating switch, mounting hardware and instructions.



Poor Quality and Customer Service

The manifold cap split when I tried to install a fitting. It wasn't over-torqued so the part was obviously defective. ARB customer service was no help. I'll buy a replacement cap but it will be the last ARB product I buy.

from SOMD |
Great OBA compressor

Comes with nicely setup wiring harnesses and activation switch. The power supply harness is about 6' long and the actuator harness is about 10' long. I mounted this in the bed of a pickup under a metal cover. I feel it would be a little loud to use in the passenger compartment. Might be okay if you can put it behind/under stuff that will muffle the sound. Airs up 37" tires from 15psi to 32psi in less than 2 minutes per tire. Can't wait to get an air tank so I can use this compressor for more things. Seems like it will work great. Only complaint would be that it doesn't come with any type of air fitting, just an 1/4"NPT port. Not a big deal and I knew this was the case before I bought it. I mention it more as heads up for future buyers that you will need to plan on at least buying an air coupler with 1/4"NPT male end. I opted for the ARB Inflation Accessory Kit. No regrets with this product.

from Colorado |
Great Compressor

Fills my 35's quick, runs my impact & air ratchet. Great unit.

from Victorville |
the alpha and the omega of compressors

this compressor is for those who want the very best of what is offered. for the size, it is a beast. it will fill up my 35s in under a minute and a half without a tank, with a tank it takes a minute from 5 to 35 psi. mind blown with how awesome it works. it is a little large for under the hood of a jeep, but fits perfectly under the seat of an XJ. It is quiet, high output, beast looking, and you can snorkel it for all your underwater applications.

from Houston, TX |
ARB Twin Compressor is fast!!!

At first I hesitated buying the ARB Twin Compressor as I had one of their first compressors, around 1997, which was slow and broke down shortly afer the warranty ran out. But after looking at the Twin Compressor I liked the quality of construction, the mid range amperage draw,the quality of the electrical connections, and that it comes with the complete wiring harness that runs from the compressor to the dash swiches. Install was very easy, the only part that took some thinking was where I was going to make a hole in the firewall to pass the harness through. I mounted the compressor in the engine bay (95 Wrangler) on the passenger side. It's plumbed to a 2.5 gallaon air tank and the compressor comes with a pressure switch that closes at 135 psi and opens at 150 psi. I have 31X1050 mud terrains on my Jeep and from 0 psi to 32 psi, the compressor was able to fill the tire to 32 psi in exactly 1 minute and 5 seconds. The outside temperature was 68F degrees and the elevation is 300 ft. I'm very impressed and pleased with this twin compressor setup. The included wiring harness made installation a breeze. ARB has winner in their twin compressor offering. I'm very satisfied with my purchase.

from Everett, WA |
Dead on Arrival

One of the motors was dead on arrival. The pressure cutoff switch was also defective. ARB customer support was easy to work with. ARB stated that the thermal cutoff switch was known to fail under low voltage conditions (less than 14 volts). 4Wheel parts cost to ship parts to Hawaii is unreasonably high. They even charge for shipping if the parts are picked up at the local store. Warranty claims are handled through the manufacturer, not 4Wheel parts.

from Kailua, Hawaii |

Question & Answers

7 Answered questions

Will this mount under a hood of a chevy colorado? And can it air up 37 inch tires and run airtools?

Asked by sasquatch from newfoundland canada on

Hello sasquatch, Yes, this will mount under the hood of your vehicle. It can air up 37" tires. To run air tools will require adding a minimum of a 1.5 gallon air tank. Thank you for the question.

Answered by from newfoundland canada on

What is the max PSI output?

Asked by Marc from on

Hello The safety cut off switch is set at 150 psi that is the max it will go up to.

Answered by Rody from on

How loud is the compressor? Too loud to be mounted behind the back seat of a mega cab?

Asked by dm357 from Colorado on

Thanks for the inquiry dm357, the ARB 4x4 Accessories Twin Air Compressor part # ARBCKMTA12 is much better on mounting under the hood or along the frame, it is a little noisy for inside a cab.

Answered by from Colorado on

See all questions & answers


ARB has been manufacturing 4x4 parts for over 40 years. ARB Air Lockers will amplify the traction of your 4x4 on challenging trails. They give the off-road driver what she needs in traction, control and performance. ARB believes in its products so it offers a five year, unlimited mile warranty across the air locker range. ARB 4x4 Accessories includes the suspension system brand Old Man Emu, maker of premium off-road shock absorbers. Old Man Emu premium shocks are developed and tuned specifically for each vehicle application. They come complete with vehicle specific mounting kits for fuss free installation. ARB parts are all developed, engineered and fabricated in-house in Australia. Shop ARB 4x4 Accessories Now


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