ARB Twin Motor Onboard 12V Air Compressor
CKMTA12
The ARB Twin Motor Onboard 12V Air Compressor – CKMTA12 provides high-output onboard air for vehicles that need more than just occasional Air Locker activation. With twin motors delivering up to 6.16 CFM free flow, a 150 PSI maximum pressure, and a 100% duty cycle, it is built for airing up large off-road tires, operating ARB Air Lockers, and supplying air tools when paired with the appropriate air tank and accessories.
The compact onboard design combines the twin compressor assembly, cooling fan, pressure switch, relays, and mounting bracket into one package for permanent vehicle installation. It is a strong choice for rock crawlers, Jeeps, trucks, buggies, and overland builds where fast tire inflation and a dependable onboard air source are important parts of the vehicle.
Includes:
- (1) ARB Twin Motor 12V Onboard Air Compressor
- Anodized Heat-Dissipating Mounting Bracket
- Integrated Pressure Switch & Heavy-Duty Relays
- Over-Pressure Safety Valve
- Installation Wiring
- IP55-Rated Cooling Fan
Specifications
| Specification | Details |
|---|---|
| Manufacturer | ARB |
| Part Number | CKMTA12 |
| Product Type | Onboard Air Compressor |
| Compressor Design | Twin Motor |
| Voltage | 12V |
| Duty Cycle | 100% |
| Maximum Pressure | 150 PSI |
| Maximum Current Draw | 68.6A |
| Air Flow @ 0 PSI | 6.16 CFM |
| Air Flow @ 29 PSI | 4.68 CFM |
| Dimensions | 10.8" L x 7.5" W x 4" H |
| Weight | 17.4 lbs. |
| Cooling Fan Rating | IP55 |
| Installation Type | Permanent Onboard Mount |
| Compatible Accessories | ARB Air Lockers, 4L Air Tank, Pump-Up Kit & Air Tool Accessories |
| Primary Application | High-Output Onboard Air for Off-Road Vehicles |
Fitment
Best Suited For:
- Rock crawlers and off-road buggies
- Jeeps, trucks, and SUVs
- Vehicles running ARB Air Lockers
- Large off-road tire inflation
- Overland vehicles requiring onboard air
- Air tool use when paired with an appropriate air reservoir
Fitment Notes:
- Universal 12V onboard compressor designed for permanent vehicle installation.
- Mount the compressor in a location with adequate clearance and airflow for cooling.
- Verify sufficient mounting space for the 10.8" x 7.5" x 4" compressor assembly.
- The vehicle electrical system must be capable of supporting the compressor's maximum 68.6A current draw.
- Additional plumbing, fittings, air tank, inflation equipment, or air tool accessories may be required depending on the intended use.
FAQ
Can the ARB Twin Compressor operate ARB Air Lockers?
Yes. The CKMTA12 can provide the compressed air required to operate ARB Air Lockers while also giving the vehicle a higher-output onboard air source for other uses.
Can I use the ARB Twin Compressor to inflate large off-road tires?
Yes. With up to 6.16 CFM free flow and a 100% duty cycle, the twin compressor is well suited for repeated tire inflation on Jeeps, trucks, buggies, and other vehicles running large off-road tires.
Does the ARB CKMTA12 have a 100% duty cycle?
Yes. The supplied specifications rate the CKMTA12 at a 100% duty cycle, allowing continuous compressor operation without a required rest period within the stated operating conditions.
Can the ARB Twin Compressor run air tools?
It can support air tool applications when paired with an appropriate air reservoir and the required plumbing and accessories. Air tool requirements vary, so compare the tool's air consumption with the compressor and tank setup before use.
What should I consider when installing the ARB Twin Compressor?
Plan for mounting space, airflow, electrical capacity, and access for future service. The compressor can draw up to 68.6 amps, so proper wiring and a vehicle charging system capable of supporting the electrical load are important parts of the installation.