ARB Airlocker Differential

2003–2020 Dodge Ram 2500 / 2007–2020 Dodge Ram 3500

RD254

Overview:

The ARB Airlocker is the world’s premier traction aid designed to keep your Dodge Ram 2500 and Ram 3500 moving confidently across all terrains. This pneumatically operated locking differential provides instant, on-demand 100% traction with the simple flick of a switch, allowing you to tackle the toughest off-road conditions without hesitation. Its robust design supports activation at any speed, giving you superior control and traction when you need it most. When disengaged, the Airlocker functions as a standard open differential, ensuring smooth and predictable on-road drivability.

Ideal for off-road enthusiasts, work trucks, and anyone requiring enhanced traction in challenging environments, the ARB Airlocker enhances vehicle capability while reducing the risk of drivetrain damage and environmental impact.

Key Features:

Engineered for reliability and ease of use, the ARB Airlocker offers a range of advanced features:

• Instant pneumatic locking system activated via a simple dashboard switch
• Operates at any vehicle speed for maximum versatility
• Steel reinforced, elastomer bonded annular seal designed for extreme temperatures
• Minimal moving parts for enhanced durability and reliability
• Patented timed locking mechanism ensures high strength and ultra-fast unlocking
• Provides 100% traction on demand without compromising driveline wear or on-road performance
• Two-piece ultra-durable design for long-lasting service life
• Includes all necessary components for installation: activation switch, solenoid valve, air line, and bulkhead fitting
• Compatible with 33 spline, 12-bolt AAM 925/950 front differentials

Construction & Design:

The ARB Airlocker is built with precision-engineered components designed to withstand the rigors of off-road use and extreme environmental conditions. Its steel reinforced, elastomer bonded annular seal provides exceptional resistance to heat, dust, and moisture, ensuring reliable operation in the harshest climates. The two-piece design minimizes moving parts, reducing potential failure points and enhancing overall strength. This robust construction guarantees long-term durability and dependable performance for your Dodge Ram’s front differential.

Installation & Fitment:

The ARB Airlocker RD254 is specifically designed to fit Dodge Ram 2500 models from 2003 to 2010 and 2011 to 2020, as well as Dodge Ram 3500 models from 2007 to 2020. It is compatible with 33 spline, 12-bolt AAM 925/950 front differentials. Installation requires an air compressor (sold separately) to operate the pneumatic locking system. The kit includes all necessary hardware and components for a straightforward installation, allowing you to upgrade your vehicle’s traction capabilities without extensive modifications.

What's Included:

• ARB Airlocker differential assembly
• Activation switch for dashboard mounting
• Solenoid valve
• Air line tubing
• Bulkhead fitting

Ideal For:

This Airlocker is perfect for off-road enthusiasts, heavy-duty truck operators, and anyone who demands superior traction in mud, snow, rocks, or uneven terrain. It is especially suited for Dodge Ram 2500 and 3500 owners who require reliable, on-demand locking differentials to enhance vehicle control, safety, and performance during challenging driving conditions.

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.