ARB 4025 Air Locker Locking Differential Dana 30 Front Axle

The ARB 4025 Air Locker is a pneumatically operated locking differential designed for Dana 30 front axle applications. Engineered for off-road performance, the ARB Air Locker delivers 100% lockup on demand, giving both wheels equal power to maximize traction in the most challenging terrain.

Unlike open differentials that send power to the path of least resistance, the ARB Air Locker locks both axle shafts together when activated, ensuring maximum torque is applied to both wheels simultaneously. When disengaged, it functions exactly like a standard open differential for smooth, normal on-road driving.

Key Features:

• 100% positive locking differential — both wheels receive equal torque when engaged
• Pneumatically activated via in-cab air switch for convenient on-demand operation
• Seamless transition between locked and open differential modes
• Designed as a direct-fit replacement for Dana 30 front axle assemblies
• Precision-machined from high-strength alloy steel for maximum durability
• Compatible with ARB's air compressor systems for a complete locking solution
• OEM-quality seals and components for long service life

The ARB Air Locker is the gold standard in locking differentials for off-road enthusiasts and serious 4WD operators worldwide. Pair with an ARB air compressor (sold separately) to complete your locking differential system.