Locking differentials have been available for years, but were always a compromise: performing well either off the road or on the road - but not on both. The ARB Air Locker provides normal differential action on the street - maintaining safe, predictable handling. An ARB Air Locker differential will drive out of the most difficult situations.
12 Month / 12,000 Mile Limited Warranty.
The worlds most highly regarded traction aid, an ARB Air Locker is a driver controlled locking differential originally designed to give serious 4 wheelers the traction needed to combat extreme off road terrain. When extra traction is required, the driver activates the Air Locker via a convenient dash mounted switch. Pneumatic pressure supplied by an on board air compressor engages ARBs patented locking mechanism within the Air Locker, thus preventing the wheels from turning independently. The Air Locker is deactivated by flicking a switch, returning the differential to normal.
ARB Air Lockers patented design has proved ultra dependable, even in the most arduous conditions. Its strength lies in its simplicity minimal moving parts ensures maximum reliability. All structural components are manufactured from aerospace grades of high alloy steel, and where possible, we increase the number of differential pinion gears to distribute torque loads evenly. Many recent Air Locker designs also utilise timed gear sets to further improve strength, a design feature that has led to a second US patent on the product.
The Air Locker design process involves exhaustive testing. Computerised Finite Element Analysis (FEA) allows us to subject each Air Locker design to "virtual" off road simulations far more extreme than those encountered in real life. Destructive laboratory testing is carried out to ensure the strength of the Air Locker exceeds that of the axles or other driveline components. Environmental test cells subject prototype models to high (120ºC) and low (-24ºC) temperature running conditions, as well as harsh wheelspin engagement for cycle durations of more than 20,000 actuations. Finally, field-testing is carried out in the harshest environments imaginable.
Provides 100% traction on demand without affecting on road drivability or driveline wear.
Vastly improved traction means less reliance on momentum, thus reducing the likelihood of vehicle damage and environmental impact.
Easy, convenient operation allows the user to concentrate on the terrain without leaving the comfort and safety of the drivers seat.
Ultra durable and extremely strong - only the highest quality materials used in construction.
Incredibly simple yet effective design that employs minimal moving parts, thereby ensuring maximum reliability.
Thoroughly tested and proven design trusted and used in over 80 countries around the world.
Front and rear Air Lockers available for most makes and models.
2WD applications available.
Easy installation and maintenance no special tools, skills or additives required.
Air compressor also provides convenient, reliable source of air for inflating tyres, camping and leisure equipment.