ARB CKMTA12 Twin Motor Onboard Air Compressor Kit w/Wiring Harness-Universal 12V

Vehicle Fitment

• Universal fitment -- designed for 12 V vehicles with sufficient battery & alternator capacity.

Fitment Notes

• Requires installation of mounting bracket, wiring loom and switch (included).
• Ensure battery and alternator can support high draw (~50-70 A) during use.
• Ideal for off-road builds with air lockers, tire inflation, air tools or onboard air systems.

Features

• Twin high-output motors provide ~6 CFM (≈174 L/min) free air flow at 0 PSI; ~4.68 CFM (≈131 L/min) at 29 PSI.
• Monoblock air-compressor design sealed to IP55 for dust and water resistance.
• Max operating pressure of 150 PSI; includes over-pressure safety valve.
• Includes complete wiring loom with fused power supply, isolating switch and mount hardware.
• Hard-anodised cylinder bores, Teflon-impregnated carbon-fibre piston seals and brushless fan in electronics for extended life.
• Built for continuous duty (100% duty-cycle) under off-road conditions in harsh environments.

Specifications

• Part Number: CKMTA12
• Voltage: 12 V DC
• Free Air Flow (0 PSI): ~6.16 CFM (174 L/min)
• Air Flow at 29 PSI: ~4.68 CFM (131.7 L/min)
• Maximum Pressure: 150 PSI
• Current Draw: ~50-68.6 A peak
• Duty Cycle: 100% continuous
• Unit Dimensions: ~10.8" L x 7.5" W x 4.0" H
• Weight: ~17.4 lb (≈7.9 kg)

Included Components

• 1x Twin-motor on-board compressor assembly (12 V)
• 1x Complete wiring loom with inline fuses and isolating switch
• 2x Splash-resistant filters (relocatable)
• Mounting bracket hardware kit (bolts, washers, spacers)
• Installation guide with torque specifications and wiring route recommendations

Product Description

The ARB CKMTA12 twin-motor on-board compressor kit provides elite performance for off-road, overland and 4x4 builds that demand high-flow compressed air for tire inflation, air lockers, pneumatic tools or onboard air systems. With a twin-motor configuration delivering approximately 6 CFM at 0 PSI and operating pressures up to 150 PSI, this compressor is built tough. The unit is sealed to IP55 standards, uses advanced internal components such as Teflon-impregnated piston seals and a brush-cooled fan system for reliable duty-cycle usage in harsh terrain. The wiring loom includes fuse protection and a dash-mounted isolator switch for safe operation. Ideal for users who want a premium, universal fit compressor system capable of powering lockers and accessories in a vehicle-agnostic application.

Because the CKMTA12 is universal, the installer must verify mounting location, wiring route and battery/alternator capacity. Best suited for vehicles that will utilize onboard air for multiple functions beyond just small tire inflation--such as differential lockers or air tools. Installation should follow ARB's detailed instructions for wiring, mounting and ventilation to ensure longevity and peak performance. With the right setup, this kit becomes a foundational component of a capable off-road or overland system.