ARB On-Board Air Compressor, 12V Twin Motor, 6.16 CFM, 150 psi, 100% Duty Cycle (CKMTA12)

The twin is what you buy when the single is not enough. Two motors, 6.16 CFM of free flow air and 4.68 CFM at 29 psi, 150 psi maximum, and the specification that actually changes how you use it: a 100 percent duty cycle. It does not need 30 minutes off after 30 minutes on, so a full set of 35" tires is one continuous job rather than a schedule.

It is designed for tires and Air Locker activation, and with a 1 gallon air tank it will run most air tools properly rather than intermittently. Integrated pressure switch and relays, an IP55 rated brushless cooling fan over the electronics, motors and cylinder heads, hard anodized cylinder bores, Teflon impregnated carbon fiber piston seals and an over-pressure safety valve are all standard. On 12 V it draws 28.4 A at free flow, 50.4 A at 29 psi.

What's Included:

• Twin motor 12 V compressor assembly with integrated pressure switch and relays
• Anodized mounting bracket
• Washable air filter assemblies
• Complete wiring loom with illuminated ARB dash switch
• Mounting hardware and terminals

Features

100% Duty Cycle
The specification that matters. It runs continuously rather than on a 30 on, 30 off schedule, so a full air up on big tires is one uninterrupted job.

Twice The Air
6.16 CFM free flow and 4.68 CFM at 29 psi from two motors, against 3.08 and 2.34 from the single. On 35" tires that difference is the trip.

150 psi
A higher maximum pressure than the single motor units, which is what makes tank charging and bead seating realistic.

Air Tools With A Tank
Paired with a 1 gallon air tank it will run most air tools properly, rather than the intermittent use a tankless single motor unit allows.

Cooled And Sealed
An IP55 rated brushless fan cools the electronics, motors and cylinder heads, and the whole assembly is sealed against moisture and dust.

Built To Last
Hard anodized cylinder bores for reduced friction, Teflon impregnated carbon fiber piston seals, an anodized bracket that dissipates heat, and an over-pressure safety valve.

Fitment & Compatibility

Specifications

• Model: ARB Maximum Performance On-Board Air Compressor, twin motor
• Part Number: CKMTA12
• Voltage: 12 V DC
• Motors: Twin
• Free-Flow Air Delivery: 6.16 CFM (174.4 L/min)
• Air Delivery at 29 psi: 4.68 CFM (131.8 L/min)
• Maximum Pressure: 150 psi
• Current Draw: 28.4 A at free flow, 50.4 A at 29 psi
• Maximum Current: 68.6 A
• Duty Cycle: 100%
• Ingress Protection: IP55
• Dimensions: 10.8"L x 7.5"W x 4"H
• Product Weight: 17.4 lb (8.8 kg)
• Thermal Protection: Internal thermal protection with brushless cooling fan
• Shipping Weight: 25 lb
• Warranty: 3 years
• UPC: 9332018003836

Installation

Type: Bolt-on to a 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 12 V wiring competence  ·  Difficulty: Moderate

The twin draws considerably more current than the single, so size the supply cable and fusing to ARB's figures rather than reusing a single motor installation. Mount away from exhaust heat and direct water spray, and leave clearance for the cooling fan to breathe.

Resources

Everything you need for your ARB On-Board Air Compressor, 12V Twin Motor, 6.16 CFM, 150 psi, 100% Duty Cycle, in one place.

• ARB CKMTA12 Installation Guide (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. Because it is an oversized item, it ships by freight and typically arrives in 3 to 7 business days.

Inspect on delivery. Please inspect the packaging before signing. If you see any damage, note it on the delivery receipt and 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.