ARB On-Board Air Compressor, 24V Single Motor, 3.08 CFM, 100 psi, IP55 (CKMA24)

The CKMA24 is the 24 V version of ARB's single motor on-board compressor, for trucks, buses, tray tops and expedition vehicles running a 24 V system. Everything that makes the 12 V unit work is here unchanged: 3.08 CFM of free flow air, 100 psi, an IP55 sealed motor and a 50 percent duty cycle that ARB rates honestly at 30 minutes on and 30 minutes off.

What changes is the electrical side. At 24 V the compressor draws 7.1 A at free flow and 12.6 A at 29 psi, roughly half the current of the 12 V unit for the same air, which is one of the quiet advantages of a 24 V vehicle. It bolts to any flat surface through four drilled holes using the supplied backing plate as a template, and the body rotates 180 degrees in its bracket to fit tight spaces.

What's Included:

• CKMA24 single motor 24 V compressor assembly with over-pressure safety valve
• Mounting bracket and backing plate, which doubles as the drilling template
• Washable sintered disc air filter assembly
• Pressure switch and manifold hardware
• Complete wiring loom with relay and illuminated ARB dash switch
• Mounting bolts, washers and terminals

Features

24 V, Same Air
3.08 CFM free flow and 2.34 CFM at 29 psi, the same output as the 12 V unit, on a 24 V vehicle system.

Half The Current
7.1 A at free flow and 12.6 A at 29 psi, roughly half what the 12 V version pulls for the same air, which eases the wiring and the fusing.

Mounts Anywhere, Points Anywhere
Four mounting holes drilled through the supplied backing plate template, and the body rotates 180 degrees in its bracket for engine bays, drawers and under tray spaces.

Everything In The Box
Full wiring loom, relay, illuminated dash switch, pressure switch and hardware included, so the install needs no parts counter trips.

Sealed Against The Trail
IP55 rated sealing keeps dust and water spray out of the motor, and the washable sintered filter is the only maintenance item.

Honest Duty Cycle
ARB rates it at a 50 percent duty cycle, 30 minutes on and 30 minutes off, rather than quoting a burst figure it cannot sustain.

Fitment & Compatibility

Specifications

• Model: ARB High Output On-Board Air Compressor, single motor
• Part Number: CKMA24
• Voltage: 24 V DC
• Free-Flow Air Delivery: 3.08 CFM (87.2 L/min)
• Air Delivery at 29 psi: 2.34 CFM (65.9 L/min)
• Maximum Pressure: 100 psi
• Current Draw: 7.1 A at free flow, 12.6 A at 29 psi
• Duty Cycle: 50%, rated 30 minutes on / 30 minutes off
• Ingress Protection: IP55 (motor assembly)
• Dimensions: 7.5"L x 3.9"W x 5.7"H
• Product Weight: 7.7 lb
• Thermal Protection: Internal overheat cut-out
• Shipping Weight: 10 lb
• Warranty: 3 years
• UPC: 881348007261

Installation

Type: Bolt-on to a drilled flat surface; full electrical kit supplied  ·  Time: 2 to 4 hours for a tidy engine bay install with switch wiring  ·  Tools: Drill, socket set, crimper; basic 24 V wiring competence  ·  Difficulty: Moderate

The supplied loom, relay and switch cover the electrical side. Pick a mounting spot away from exhaust heat and water spray, use the backing plate as the drilling template, and follow ARB's guide for the pressure switch plumbing.

Resources

Everything you need for your ARB On-Board Air Compressor, 24V Single Motor, 3.08 CFM, 100 psi, IP55, in one place.

• ARB Compressor Technical Specifications (PDF), the manufacturer's step-by-step guide covering mounting, included hardware and adjustment.

Warranty, Shipping & Returns

Warranty. ARB covers this product with a 3-year unlimited-mileage warranty through ARB North America (Air Locker Inc., Auburn, WA), the term ARB publishes for it in its own product record. Wear items such as filter elements and seals fall under ARB's 1-year wear-item schedule. We describe ARB's warranty exactly as published and it is honored through any ARB-authorized dealer in the US.

Free shipping. This item ships free to the lower 48 states and typically arrives in 3 to 7 business days.

Inspect on delivery. Please inspect your order on arrival. If anything is damaged or missing, contact us right away and we will make it right.

Returns. Unused items in their original packaging can be returned within 30 days of delivery. If an item arrives damaged, defective or wrong, return shipping is on us. See our Returns & Refunds Policy, or email support@prestigetruck.com with any question.

About ARB

ARB started in 1975 in a Melbourne garage, when Tony Brown began building bull bars for the four-wheel drives crossing Australia's outback, and the company has grown into the largest 4x4 accessories maker in the southern hemisphere. Its engineering campus in Kilsyth, Victoria still designs and builds the products the brand is known for, and ARB now runs offices in the USA, Europe and the Middle East with an export network reaching more than 100 countries.

Air is one of the things ARB is best known for. The compressor line, the Air Locker system it was built to feed, and the fittings, hoses and gauges that tie them together are engineered as one system, which is why an ARB air part is specified by the same part numbers the factory uses. In North America ARB operates from Auburn, Washington as Air Locker Inc., backing every product with a US warranty program. Prestige Truck is an authorized ARB dealer. Every part we ship is a genuine US-market unit with full ARB North America warranty coverage.