ARB Air Locker Differential

1997–2018 Jeep Wrangler & Jeep Wrangler JK

RD147

Overview:

The ARB Air Locker Differential is the ultimate traction solution for off-road enthusiasts seeking reliable performance in challenging conditions. Designed specifically for Dana 44 axles with 35 spline shafts and gear ratios of 3.73 and lower, this air-operated locker delivers instant, on-demand locking capability at the flick of a switch. Perfectly suited for Jeep Wrangler models from 1997 through 2018, including the JK series, the Air Locker enhances your vehicle’s ability to conquer the toughest terrain by providing maximum traction when you need it most.

With its pneumatic locking system, the Air Locker prevents the differential gears from rotating independently, ensuring both axle shafts turn together. This direct connection to the ring gear maximizes traction, allowing you to maintain control and momentum in slippery, rocky, or uneven environments. When disengaged, it functions as a standard open differential, preserving smooth on-road drivability and minimizing driveline wear.

Key Features:

The ARB Air Locker Differential combines advanced engineering with user-friendly operation to deliver superior off-road capability. Key features include:

• Instant pneumatic locking activated by a simple dashboard switch
• Operates at any vehicle speed, allowing engagement on the move
• Steel reinforced, elastomer bonded annular seal designed for extreme temperatures
• Two-piece ultra-durable design with minimal moving parts for maximum reliability
• Patented timed locking mechanism for high strength and rapid unlocking
• Provides 100% traction on demand without compromising on-road performance
• Includes activation switch, solenoid valve, air line, and bulkhead fitting for complete installation
• Compatible with Dana 44 axles featuring 35 spline shafts and gear ratios of 3.73 and below

Construction & Design:

The ARB Air Locker is engineered for durability and reliability in the harshest environments. Its two-piece design minimizes moving components, reducing potential failure points and ensuring long-lasting performance. The steel reinforced, elastomer bonded annular seal withstands extreme climatic conditions, from freezing cold to intense heat, protecting the internal components and maintaining airtight operation. The robust pneumatic system is designed for seamless integration with your vehicle’s existing air supply, providing consistent and dependable locking action.

Installation & Fitment:

This Air Locker is a direct fit for Jeep Wrangler models from 1997 to 2017 and Jeep Wrangler JK models from 2018, specifically those equipped with Dana 44 axles, 35 spline shafts, and gear ratios of 3.73 and lower. Installation requires an air compressor system (sold separately) to operate the pneumatic locking mechanism. The kit includes all necessary components for installation, but professional installation is recommended to ensure proper setup and optimal performance.

What's Included:

• ARB Air Locker differential unit
• Activation switch for dashboard mounting
• Solenoid valve for air control
• Air line tubing
• Bulkhead fitting for firewall installation

Ideal For:

The ARB Air Locker Differential is ideal for Jeep Wrangler owners who demand superior traction and control during off-road adventures. Whether tackling rocky trails, mud, sand, or snow, this locker enhances vehicle capability by ensuring both wheels on the axle turn together, preventing wheel slip and loss of momentum. It is especially suited for off-road enthusiasts, overlanders, and anyone who requires reliable traction without sacrificing on-road drivability.

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.