---
product_id: 654952088
title: "ARB CKMTA12 '12V' On-Board Twin High Performance Air Compressor, Ideal for Air Lockers Locking Differentials, Tire Inflator, Air Horn, Air Tools and Pneumatic Tools."
brand: "arb"
price: "R$11479"
currency: BRL
in_stock: true
reviews_count: 8
category: "Arb"
url: https://www.desertcart.com.br/products/654952088-arb-ckmta12-12v-on-board-twin-high-performance-air-compressor
store_origin: BR
region: Brazil
---

# 174 LPM max airflow Dual cylinder twin motor design Thermal & circuit protection ARB CKMTA12 '12V' On-Board Twin High Performance Air Compressor, Ideal for Air Lockers Locking Differentials, Tire Inflator, Air Horn, Air Tools and Pneumatic Tools.

**Brand:** arb
**Price:** R$11479
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your adventure with the fastest, toughest 12V compressor on the market!

## Quick Answers

- **What is this?** ARB CKMTA12 '12V' On-Board Twin High Performance Air Compressor, Ideal for Air Lockers Locking Differentials, Tire Inflator, Air Horn, Air Tools and Pneumatic Tools. by arb
- **How much does it cost?** R$11479 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/654952088-arb-ckmta12-12v-on-board-twin-high-performance-air-compressor)

## Best For

- arb enthusiasts

## Why This Product

- Trusted arb brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Water-sealed motors with 100% ball bearings and PTFE carbon fiber piston seals ensure ultra-long life and quiet operation.
- • **Compact Powerhouse:** Twin motor, dual cylinder design fits tight spaces without compromising on power or reliability.
- • **Plug & Play Installation:** Comes with full wiring loom and labeled harness for seamless integration with Air Lockers and pneumatic systems.
- • **Safety-First Engineering:** Equipped with thermal protection, dual Maxi-Fuses, and an over-pressure safety valve for worry-free performance.
- • **Unmatched Airflow Efficiency:** Delivers 174LPM (6.16 CFM) — highest in its 12V class for rapid inflation and tool power.

## Overview

The ARB CKMTA12 is a premium 12V twin motor air compressor engineered for professionals and enthusiasts needing rapid, reliable air delivery. Featuring a compact dual-cylinder design, it achieves the highest airflow in its class at 174LPM, while advanced water-sealed motors and premium bearings guarantee durability and quiet operation. Complete with a full wiring loom and built-in safety features, this compressor is ideal for air lockers, tire inflation, pneumatic tools, and more — making it the go-to choice for millennial managers who demand efficiency, quality, and seamless integration.

## Description

Buy ARB CKMTA12 '12V' On-Board Twin High Performance Air Compressor, Ideal for Air Lockers Locking Differentials, Tire Inflator, Air Horn, Air Tools and Pneumatic Tools.: Air Compressors & Inflators - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good Compressor - 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 didn't use one due to mounting location restrictions. This is a good compressor and I hope to use it for many years. Good luck.
Review: Quality compressor for your air lockers - I have a 1998 Cherokee that has had an air locker of some sort since about 2000. For many years I had a Quick Air II compressor which served me well but not perfectly. I had several issues with it over the years. It finally quit completely about 6 years ago. After that I installed an on-board air compressor driven by the engine. This too turned out to have issues and I abandoned it. After that I returned to an electric compressor and bought a small Harbor Freight compressor just to run the lockers (all of my other setups were used for airing up and the lockers.) The Harbor Freight compressor turned out to be nothing but problems. Obviously you get what you pay for. The first one broke the pin on the crankshaft. I modified the compressor to use a bolt in the crankshaft and that fixed the problem. Then I had problems with it over heating. Finally one of the reed valves on the piston broke. I mention all of this to highlight all of the problems I've had over the years with something that is dead simple. I finally decided to quit messing around with junk and go with a compressor made by a company who specializes in air lockers and also has years of experience and a great reputation. Looking at the price of this tiny little guy I though it was very pricey for what I was getting. At the end of the day though, I've spent much more on unreliable and frustrating solutions. One major benefit, in addition to quality and reliability, is the fact that it is already set up to accommodate two solenoids and a pressure switch. I also believe you can get an air up kit for it if you'd like. I decided not to run an air gauge as I didn't feel I need one but I believe it will also accommodate one if you would like. In addition it includes wiring harnesses to connect everything. I cannot comment on whether they worked or not because everything was already wired by me from my past setups so there was no need to read invent the wheel. One thing I'd like to say is I don't think I would recommend the air up kit for this compressor. Not to use for airing up tires any way. If you were to use it for airing up balls and small items, maybe, otherwise get a larger portable compressor for airing up. Harbor Freight does make a larger portable compressor that looks suspiciously like a Viair and works quite well. All of this said, this is a great little compressor for running your air lockers. It airs up quickly and has plenty of capacity for this job. It is very compact which makes finding a place to mount it that much easier. After years of messing around with my air source on every wheeling trip it was nice to have a system that just plain worked and needed zero intervention! The price for this little guy may seem a bit high but in reality it is worth every penny.

## Features

- Motors are water sealed, 100% ball bearing equipped (i.e. no bushings), and feature a unique linear brush pre-load system for extra long life, low heat and quiet operation throughout the life of the unit.
- Compact twin motor, dual cylinder design makes it the highest flowing compressor in its class (voltage vs. size). Highest air flow rate of any 12V compressor of its size on the market at 174LPM [6.16CFM].
- Full wiring loom included for simplified installation and easy plug-in connectivity to Air Locker control solenoids. (Note: Air Locker Manifold Kit #171503 required to mount solenoids).
- Motors are internally thermal protected against extreme temperature damage. Over-pressure safety valve equipped. Equipped with dual heavy duty Maxi-Fuses for professional in-line circuit protection and true circuit redundancy in case of a fault.
- Compressor pistons are equipped with a heavy duty European made cylindrical roller bearing. Hard-anodized cylinder bores and PTFE (Teflon) impregnated carbon fibre piston seals for reduced friction and maximum trouble free life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ARB |
| Noise Level | 6 Sones |
| Power Source | Electric Powered |
| Recommended Uses For Product | Tire Inflation, Air Locker Activation, Powering Pneumatic Tools |
| Voltage | 12 Volts |

## Product Details

- **Brand:** ARB
- **Noise Level:** 6 Sones
- **Power Source:** Electric Powered
- **Recommended Uses For Product:** Tire Inflation, Air Locker Activation, Powering Pneumatic Tools
- **Voltage:** 12 Volts

## Images

![ARB CKMTA12 '12V' On-Board Twin High Performance Air Compressor, Ideal for Air Lockers Locking Differentials, Tire Inflator, Air Horn, Air Tools and Pneumatic Tools. - Image 1](https://m.media-amazon.com/images/I/612lwDgZbHL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: how loud is the unit? Is is too loud to mount in the cab area?**
A: Here is a video I uploaded onto youtube. The compressor is mounted to a piece of 3/4" partical board (I still need to carpet it), which is mounted to some 1"x1"x1/8" angle steel, which I sandwich clamped onto my Garvin Wilderness interior rack in my 2015 Xterra which the legs were wrapped with a few wraps of "F4" or "self fusing tape" as found here on Amazon. The prevents damaging the finish on the legs, and provides another layer of vibration and noise dampening. Please note, I did not rehearse the recording so I say a few mistakes here or there, but you will get the point. https://www.youtube.com/watch?v=TVDWN7hc_Fk

**Q: Does the Air Compressor contains the mounting clamp, backing plate, pressure switch, wire loom and all the mounting hardware? or just the compressor?**
A: I cannot believe Amazon and ARB have not jumped on the fact that they do NOT list "what's in the box"!  Shame on Amazon!Check the ARB website.It does indeed come with all you listed above except I am not sure if it has the mounting clamp or backing plate.  I bought mine as a replacement for the same unit after 7 years of service.  I did not need anything except the compressor.  Good luck.

**Q: Simple question: Can you run front and rear lockers with this compressor?**
A: Yes you should be able to run both front and rear air lockers off this compressor. As well as air up tires!Thanks

**Q: Will this fit and work mounted in the storage pocket under rear srorage on a 2 door 2008 jeep wrangler**
A: i don't know, sorry!
Most of the people install it under the hood of the engine, I have also seen it installed under the car near the gas tank, it is really small and you can place it anywhere since you control it from your cabin by a swich.
if you are going to use it only to inflate the rubbers, it is fine anywhere, but if it is for use with blockers I recommend you under the engine hood.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Compressor
*by K***H on August 27, 2012*

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 didn't use one due to mounting location restrictions. This is a good compressor and I hope to use it for many years. Good luck.

### ⭐⭐⭐⭐⭐ Quality compressor for your air lockers
*by B***E on March 14, 2016*

I have a 1998 Cherokee that has had an air locker of some sort since about 2000. For many years I had a Quick Air II compressor which served me well but not perfectly. I had several issues with it over the years. It finally quit completely about 6 years ago. After that I installed an on-board air compressor driven by the engine. This too turned out to have issues and I abandoned it. After that I returned to an electric compressor and bought a small Harbor Freight compressor just to run the lockers (all of my other setups were used for airing up and the lockers.) The Harbor Freight compressor turned out to be nothing but problems. Obviously you get what you pay for. The first one broke the pin on the crankshaft. I modified the compressor to use a bolt in the crankshaft and that fixed the problem. Then I had problems with it over heating. Finally one of the reed valves on the piston broke. I mention all of this to highlight all of the problems I've had over the years with something that is dead simple. I finally decided to quit messing around with junk and go with a compressor made by a company who specializes in air lockers and also has years of experience and a great reputation. Looking at the price of this tiny little guy I though it was very pricey for what I was getting. At the end of the day though, I've spent much more on unreliable and frustrating solutions. One major benefit, in addition to quality and reliability, is the fact that it is already set up to accommodate two solenoids and a pressure switch. I also believe you can get an air up kit for it if you'd like. I decided not to run an air gauge as I didn't feel I need one but I believe it will also accommodate one if you would like. In addition it includes wiring harnesses to connect everything. I cannot comment on whether they worked or not because everything was already wired by me from my past setups so there was no need to read invent the wheel. One thing I'd like to say is I don't think I would recommend the air up kit for this compressor. Not to use for airing up tires any way. If you were to use it for airing up balls and small items, maybe, otherwise get a larger portable compressor for airing up. Harbor Freight does make a larger portable compressor that looks suspiciously like a Viair and works quite well. All of this said, this is a great little compressor for running your air lockers. It airs up quickly and has plenty of capacity for this job. It is very compact which makes finding a place to mount it that much easier. After years of messing around with my air source on every wheeling trip it was nice to have a system that just plain worked and needed zero intervention! The price for this little guy may seem a bit high but in reality it is worth every penny.

### ⭐⭐⭐⭐⭐ Great product tech support not so much
*by T***S on July 24, 2023*

The purchase experience with Amazon was typically Amazon perfect; ARB tech 'support' not so much. I purchased the CMK12 to use as a mounted air supply in a R1100GS opting not to get the inflation 'kit' that is offered as the unit is the same and it includes about $100.00 usd for stuff I already had. Getting through to the very very very nice person at ARB was quick and easy-credit where credit is due-however the Company bailed on providing assistance for wiring the compressor which I really do understand but also would not provide a wiring diagram for the kit version stating that none is/was available ????????????? Bottom line is that I was on my own and most probably anyone else who opts to try this also. I was able to confirm that the tappings on the mini air receiver are 1/8" inch BSPP however I found out the hard way that apparently all BSPP to npt fittings are not the same as the two I got from a supply house we do business with did not fit, or rather would not fully thread in to contact/compress the gasket or washer-didn't really need to mount the gauge and pop valve there anyway. After two full days the install was complete and the performance really makes the ordeal worth it: time to fill the front tire, 110-80-19 from 0 to 36 psi approx 26 seconds and the rear tire , 150-70-17 from 0-42psi just under one minute-please note the bike was on the center stand. The engine was off and the bike started normally but of course I would opt to run the engine in the event we have to make a repair-cannot give the current draw as the meters I have read only dc micro/milliA. Cannot imagine anyone not being more than completely satisfied with the ARB compressor. For what it is worth; the only info on the compressor is ARB no country of origin no specs at all the box does state 'made in Australia' but can't help but to wonder if this means the box, the contents or both. Decided to get a meter which reads dc amps and raised the pressure of an unmounted 205 75 R14 trailer tire from 0 psig to about 36 psig, in roughly a minute and 30 seconds. Inrush just under 25A, less than 26A for about 45 seconds and remained under 27A for the duration. Could barely hold my hand on the cylinder head for a second, after 15 seconds the head was only warm BUT the ambient temp was 41*F, dew point 11*F. Hope this helps all considering getting one of these remarkable compressors.

## Frequently Bought Together

- ARB CKMTA12 '12V' On-Board Twin High Performance Air Compressor, Ideal for Air Lockers Locking Differentials, Tire Inflator, Air Horn, Air Tools and Pneumatic Tools.
- ARB 171302V2 Portable Tire Inflation Kit, Includes High-Temperature Air Hose 23 Foot and Redesigned Accessories Kit, Quick Fitting for Universal On Board Systems and Air Compressors
- ARB 171503 Air Compressor Manifold Kit for Easy Installation of Two Air Lockers Solenoids on ARB CKMTA12 Air Compressor, Plug and Play Air Hose Kit for Tire Inflation

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-03*