ARB Air Locker Differential

1995–2010 Dodge Dakota, 1997–2004 Dodge B1500/B2500, 1997–2004 Dodge Ram 2500, 1999–2003 Dodge Ram 1500/2500 Van, 2005–2010 Jeep Grand Cherokee, 2006–2010 Jeep Commander

RD93

Overview:

The ARB Air Locker is the world’s premier traction aid designed to provide maximum traction on demand for a wide range of Chrysler 8.25-inch differentials. Engineered for off-road enthusiasts and professionals alike, this pneumatically operated locking differential delivers instant, reliable locking power at the flick of a switch. Whether navigating rocky trails, slippery mud, or uneven terrain, the Air Locker ensures both wheels turn in unison, dramatically improving vehicle control and capability.

Ideal for drivers who demand superior traction without compromising on-road drivability, the Air Locker allows activation at any speed, enabling safer, more controlled off-road performance. When disengaged, it functions as a conventional open differential, preserving normal handling characteristics for everyday driving.

Key Features:

ARB’s Air Locker incorporates advanced technology and robust design to deliver unmatched performance and reliability:

• Instant pneumatic locking mechanism activated via a simple dashboard switch
• Operates at any vehicle speed, allowing engagement on the move
• Steel reinforced, elastomer bonded annular seal designed for extreme temperature resistance
• Patented timed locking system ensures ultra-fast unlocking and high strength
• Minimal moving parts for maximum durability and reliability under harsh conditions
• Provides 100% traction on demand without driveline wear or affecting on-road drivability
• Two-piece design enhances strength and simplifies maintenance
• Compatible with Chrysler 8.25-inch ring gear differentials featuring 29 splines and 1.21-inch shafts
• Includes all necessary components for installation, including activation switch and air line fittings

Construction & Design:

The ARB Air Locker is engineered with a focus on durability and performance. Its core locking mechanism is pneumatically actuated, eliminating the need for complex mechanical linkages and reducing potential failure points. The differential housing is built to withstand the rigors of off-road use, while the steel reinforced annular seal ensures reliable operation in extreme climates, from freezing cold to scorching heat.

The two-piece design simplifies installation and maintenance, while the minimal moving parts inside the unit contribute to long-term reliability. The Air Locker’s internal components are precision machined to fit Chrysler 8.25-inch differentials, ensuring seamless integration and optimal performance.

Installation & Fitment:

The ARB Air Locker RD93 is designed for direct fitment on a wide range of Dodge and Jeep vehicles equipped with Chrysler 8.25-inch differentials. Compatible models include Dodge Dakota (1995–2008), Dodge B1500 and B2500 (1997–1998), Dodge Ram 2500 (1997–2004), Dodge Ram 1500 and 2500 Vans (1999–2003), Jeep Grand Cherokee (2005–2010), and Jeep Commander (2006–2010).

Installation requires an air compressor system (sold separately) to operate the pneumatic locking mechanism. The kit includes all necessary hardware for activation, including a switch, solenoid valve, air line, and bulkhead fitting. Professional installation is recommended to ensure proper setup and reliable operation.

What's Included:

• ARB Air Locker differential unit
• Activation switch for dashboard mounting
• Solenoid valve for pneumatic control
• Air line tubing
• Bulkhead fitting for secure air line routing

Ideal For:

This Air Locker is perfect for off-road enthusiasts, overlanders, and professionals who require dependable traction in challenging conditions. It is especially suited for drivers of Dodge and Jeep vehicles who want to enhance their vehicle’s off-road capability without sacrificing everyday drivability. Whether tackling mud, rocks, snow, or uneven terrain, the ARB Air Locker provides confidence and control when traction is critical.

ARB is a globally recognized off-road and overlanding brand that builds hard-use equipment for trucks, SUVs, and adventure rigs. From bumpers, roof racks, and protection gear to its well-known Old Man Emu suspension systems, ARB focuses on durability, fitment, and real-world trail performance for drivers who push beyond pavement.