ARB CKMA12 On-Board 12V Air Compressor for Lockers & Tire Inflation

Vehicle Fitment

• Universal on-board air compressor for 12V vehicles with compatible wiring

Features

• High-output 12 V on-board compressor for ARB Air Locker systems and tire inflation
• Sealed against moisture and dust for rugged off-road conditions
• Hard-anodized cylinder bore reduces friction and increases life
• Teflon-impregnated carbon fiber piston seal for reduced wear
• Anodized mounting bracket allows 180° repositioning
• Over-pressure safety valve equipped
• Heavy-duty maxi-fuse inline protection
• Internal thermal protection reduces damage from overheating

Specifications

• Brand: ARB
• Part Number: CKMA12
• Voltage: 12 V DC
• Maximum Pressure: ~100 PSI cutoff
• Air Flow @ 0 PSI: ~3.08 CFM (87.2 L/min)
• Air Flow @ 29 PSI: ~2.34 CFM (66 L/min)
• Duty Cycle: ~50% (30/30)
• IP Rating: IP55 (sealed for moisture/dust)
• Dimensions: ~190 mm x 145 mm x 98 mm
• Weight: ~7.7 lbs

Included Components

• 1x ARB CKMA12 on-board air compressor
• 1x Mounting bracket
• 1x Full wiring loom with relay and pressure switch
• Assorted mounting hardware
• Installation instructions

Product Description

The ARB CKMA12 On-Board 12V Air Compressor is a rugged, high-performance compressor designed for off-road vehicles and overland builds. Engineered to support ARB Air Locker differential systems and general tire inflation needs, this durable compressor delivers dependable air flow from a compact footprint suitable for engine bay or interior mounting. Its sealed design protects against moisture and dust intrusion, while the hard-anodized bore and Teflon-impregnated piston seal provide long service life under tough conditions.

Equipped with a heavy-duty inline fuse and thermal protection, the CKMA12 can be repositioned using its anodized mounting bracket to fit a wide range of 4x4 vehicles, trucks, and SUVs with a 12 V accessory circuit. Whether used to actuate ARB Air Lockers, inflate tires after airing down for trail or sand driving, or power small pneumatic tools with a tank added, this compressor is a versatile and essential component of any serious off-road kit.