ARB Air Locker Differential with Pneumatic Activation

The ARB Air Locker is a selectable, pneumatically activated locking differential (also called an air locker or air-actuated diff lock) for off-road, overlanding, and 4x4 use. It runs as a normal open differential for everyday driving. At the flip of a switch, it locks both axle shafts together so both wheels get equal drive when traction is poor.

Key Features:

• On-demand locking: Compressed air engages the locker from the cab. Releasing the air returns the differential to open operation for normal on-road handling and tire wear.
• Pneumatic activation: An air supply, typically from an ARB onboard compressor or another suitable air source, drives the locking mechanism. Locking and unlocking are quick and controlled.
• Improved traction: Full lock sends power to both wheels on loose, slippery, uneven, or cross-axled terrain. This helps in sand, mud, rock, snow, and steep climbs.
• Strong construction: Built from high-strength materials for heavy off-road use, and designed to fit inside the factory differential housing for the application.
• Proven design: ARB has long been a leading name in 4x4 equipment. Air Lockers are widely used in recreational and expedition vehicles.

Available in multiple configurations to suit different axle and differential applications. Choose the correct part number for your axle and spline count. Installation requires proper differential setup, and professional installation is recommended.