ARB "Air Lockers" differential lock

100% traction on demand

without affecting road drivability, 100% traction on demand, without sacrificing any of your vehicle's highway driving performance.

The "Air Locker" is a high-quality, pneumatically operated locking system of the Australian off-road professionals ARB. These can be installed in a wide variety of vehicle types. The advantage of the ARB Air Locker lies in the pneumatically operated locking system inside the differential

What are the advantages of this selectable locking?

When unlocked it operates just like a conventional “open” differential- thus there is no unnecessary tyre wear and no surprising intervention of the lock.

In terrain, if demanded, the lock is selected by a push of a button within 1/10 sec, with 100% efficiency. Both wheels of the axle then rotate at the same speed.
Compared to a original electromechanical lock the ARB lock responds faster and can be conditionally turned on even when driving. When pushing the button, the ARB is locked! When switching off its immediately unlocked.

How the lock works:

By pressing a button on the dash-mounted switch, the lock is on / off. The air pressure required is generated by a separately available compressor which is generally installed in the engine compartment. When switching on, a built in ring piston is actuated, which ensures that the differential is locked. When turned off again, the compressed air escapes through the solenoid valve and small high performance springs release the circlip. Then the differential acts as a normal "open" differential.


  • High quality material and thick structural components
  • Large and strong planetary gears
  • Ease of installation
  • Reinforced screws on the differential carrier
  • Robust housing and drive components, maintenance free

We recommend the VIAIR 460 or ARB dual compressor which can be used simultaneously for filling the tires and is fitted in the engine compartment.

Privacy Policy Disclaimer Contact us Your way to us Cookies

Copyright Đ 2016 Tom's Fahrzeugtechnik. All Rights Reserved.

We use cookies to make your experience on our website as pleasant as possible. Visit our privacy policy to learn more. By using our website, you agree to our use of cookies. Learn more