ARB 12V On-Board Twin Air Compressor — High-Flow 174 LPM, Compact Durable Design

The ARB CKMTA12 is a compact, twin-motor 12V on-board air compressor delivering class-leading airflow (174 LPM / 6.16 CFM) for air lockers, tire inflation and pneumatic tools.

Built to meet the demands of off-roaders and professional users, the CKMTA12 pairs two water-sealed, ball-bearing motors with a dual-cylinder design to maximize flow while keeping size and weight down. ARB engineered this unit for reliable continuous operation: hard-anodized cylinders, PTFE-impregnated carbon-fibre seals, European cylindrical roller bearings and thermal motor protection extend service life. The package includes a full wiring loom and heavy-duty Maxi-Fuses for straightforward installation and electrical safety.

How does the CKMTA12 perform for air lockers and locking differentials?

This compressor is designed to supply rapid, repeatable air delivery ideal for actuating Air Locker solenoids and cylinders. With the highest airflow in its size class, it reduces actuation time and can cycle multiple engagements during demanding off-road use.

• 174 LPM (6.16 CFM) peak flow for fast actuation
• Full wiring loom for plug-in connectivity to Air Locker solenoids
• Over-pressure safety valve and thermal motor protection

Can I use the CKMTA12 for tire inflation and air tools?

Yes — the high-flow twin-cylinder design makes the CKMTA12 capable of inflating tires quickly and powering small pneumatic tools and air horns. It’s compact enough to remain on-board while delivering usable flow for common emergency and workshop tasks.

• High flow helps reduce inflation time for large off-road tires
• Suitable for intermittent use with pneumatic tools and horns
• Heavy-duty fuses provide circuit protection during tool use

What durability and protection features guard the compressor in harsh conditions?

Durability is built into both the mechanical and electrical design. Motors are water-sealed and fully ball-bearing supported, pistons run on European roller bearings, and cylinder bores are hard-anodized for wear resistance. Electrical safeguards include thermal protection and dual Maxi-Fuses for redundancy.

• Water-sealed motors and 100% ball-bearing construction
• PTFE-impregnated carbon-fibre piston seals for low friction
• Dual heavy-duty Maxi-Fuses and motor thermal protection

How simple is installation and what accessories are required?

The CKMTA12 ships with a complete wiring loom to simplify mounting and connection to vehicle systems. For Air Locker installation you’ll need the ARB Air Locker Manifold Kit #171503 to mount and plumb solenoids; typical installs also require secure mounting points and a suitable electrical feed.

• Included full wiring loom for easier integration
• Air Locker Manifold Kit #171503 required for solenoid mounting
• Mounting provisions and a fused 12V supply recommended

Who is this for? The ARB CKMTA12 is aimed at four-wheel-drive enthusiasts, overland rigs, and professional users who need a compact, high-flow on-board compressor that performs reliably in off-road and field service environments. If you require fast air delivery for locking differentials, quicker tire inflation on large tyres, or a dependable source of pneumatic power on the go, this compressor offers a purpose-built balance of airflow, durability and electrical protection.