ARB Air Locker – Front Axle Locker for Land Rover Rover-Type, 10 Spline

The ARB Air Locker is the world’s premier traction solution for serious off-road performance. Designed for the front axle of Land Rover models with Rover-type differentials and 10-spline shafts, this locker delivers 100 percent traction on demand—instantly, and at any speed.

Using a patented pneumatic locking mechanism, the Air Locker eliminates differential action to lock both axle shafts together, maximizing traction when and where you need it. When disengaged, it functions as a standard open differential, preserving everyday drivability.

Engineered for strength and reliability, the ARB Air Locker features a hardened two-piece design with minimal moving parts and a steel-reinforced elastomer seal rated for extreme temperatures. It's the trusted choice for off-roaders tackling everything from steep Utah trails to harsh overland routes.

Air compressor required for operation (sold separately).

Features & Benefits:

• Provides 100% traction on demand without affecting on-road performance

• Pneumatic locking system activated from the driver's seat

• Operates as a normal open differential when unlocked

• Patented timed locking mechanism ensures fast, reliable engagement

• Two-piece ultra-durable construction with minimal moving parts

• Includes Air Locker differential, activation switch, solenoid valve, air line, and bulkhead fitting

• Steel-reinforced annular seal handles extreme temperatures

• Reduces risk of vehicle and environmental damage by allowing slower, more controlled driving

Fitment Information:

• Differential Type: Rover-type front differential

• Axle Shaft Diameter: 1.11 inches

• Spline Count: 10

• Gear Ratio: 3.54 and up

• Material: High-grade steel

• Finish: Silver

• Prop 65: No

• Warranty: 3 years

• Air compressor required (sold separately)

Compatible Vehicles:

• Land Rover Series II and III (1970–1974, various trims, 2.3L/2.6L 4- and 6-cylinder, gas or diesel)

• Land Rover Defender 110 (1993, 3.9L V8)

• Range Rover Classic (1987–1993, 3.5L–4.2L V8, including County, Hunter, LSE, Great Divide, and Anniversary editions)