ARB RD174 Air Locker Differential with Pneumatic Locking System

The ARB RD174 Air Locker Differential delivers 100% traction on demand without compromising highway driving performance. Featuring ARB's improved two-piece design, forged gears, and industry-leading five-year warranty, this pneumatically operated locking differential provides maximum traction when you need it most—all controlled from the driver's seat.

How It Works:

The Air Locker utilizes a 12-volt ARB Air Compressor to activate a solid locking mechanism inside the differential. When engaged, the pneumatic system prevents the differential gears from rotating, locking both axle shafts together so they turn at the same speed. This ties both wheels directly to the ring gear rotation, ensuring maximum traction on challenging terrain. When unlocked, the differential operates like a conventional open differential for normal highway driving.

Key Features:

• Improved two-piece design for enhanced durability and serviceability
• Forged gears for superior strength and longevity
• Pneumatic activation system for instant on/off control
• On-demand locking—engage only when needed for off-road traction
• Functions as open differential when unlocked for normal driving
• Switch-activated from driver's seat for convenient operation
• Industry-leading five-year warranty for peace of mind
• Requires 12V ARB Air Compressor for operation (sold separately)

Performance Benefits:

The Air Locker transforms your 4x4's off-road capability by providing controlled, predictable traction in extreme conditions. Drive slower, safer, and with more precision on difficult terrain, reducing the risk of vehicle damage and environmental impact. Unlike always-locked differentials, the Air Locker's on-demand design means you retain excellent highway manners and fuel economy during normal driving.

Perfect for serious off-roaders, overlanders, and 4x4 enthusiasts who demand reliable traction without compromising daily drivability.