null

Winter Essentials Best Sellers

Explore our Winter essentials! From rugged recovery gear to ensure safe travels in snow and ice, to vehicle accessories designed to withstand the harshest conditions, our collection has everything you need to conquer winter.

Flat Rate Shipping on Roof Racks - $99

For a limited time, get any roof rack delivered for a flat rate of just $99. Expand your overlanding capabilities with ARB's sleek range of 4x4 roof racks.

Some exclusions may apply. Valid for orders within the contiguous U.S. only.

Flat Rate Shipping on Bumpers - $99

Get your ARB bumpers delivered straight to your door for a flat rate of just $99. Whether you're upgrading your off-road setup or replacing an old favorite, we've made shipping straightforward and affordable.

Some exclusions may apply. Valid for orders within the contiguous U.S. only.

$459 8ft Silver Case Aluminum Awning

For a limited-time on our popular Hard Case 8ft Awning is now available at an exclusive price of $459 (down from $686 MSRP).

While stock lasts!

Skip to main content

Shop Your Vehicle

My Garage
    Submit
    Reset

    Air Locker Differential Dana 44, 33 SPL, 3.92 & UP RD113

    $1,113.95
    |

    Part Number: RD113

    Size Chart
    ARB Warranty

    ARB Warranty

    45-Day Returns

    45-Day Returns

    Fast Shipping

    Fast Shipping

    The world's premier traction aid, an ARB Air Locker keep you moving in all conditions. With the flick of the switch an Air Locker gives instant lock at any moment and its super strong design allows activation at any speed allowing you to tackle the toughest terrain. The advantage of the Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the internal differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates like a conventional open differential. An Air Locker equipped vehicle can be driven in a slower, safer and more controlled manner, greatly reducing the likelihood of vehicle damage and environmental impact. ;

    Features & Benefits

    • Provides 100 percent traction on demand without affecting on-road drivability or driveline wear
    • Easy, convenient operation allows the user to concentrate on the terrain without leaving the comfort and safety of the driver's seat
    • Two-piece design is ultra-durable and extremely strong ? minimal moving parts ensure maximum reliability
    • Patented ?timed' locking mechanism offers high strength and ultra-fast unlocking
    • Steel reinforced, elastomer bonded annular seal designed to handle the most extreme climatic temperatures on Earth
    • Kit includes: Air Locker differential, activation switch, solenoid valve, air line and bulkhead fitting
    • Air compressor required for operation (sold separately)
    • Color Silver
    • Material Steel
    • Fitment Info Axle: Dana 44; Position: Rear; Shaft: 1.37 in; Spline: 33; Ratio: 3.92 Up
    • Prop 65 No
    • Warranty 5 YR
    YearMakeModelSubmodelLiterCylindersFuel typeDoors
    2003-2006JeepWranglerRubicon46GAS2
    1997-2004JeepWranglerSahara46GAS2
    2003-2006JeepWranglerSE2.44GAS2
    1997-2002JeepWranglerSE2.54GAS2
    2005-2006JeepWranglerSE46GAS2
    1997-2006JeepWranglerSport46GAS2
    2004-2006JeepWranglerUnlimited46GAS2
    2005-2006JeepWranglerUnlimited Rubicon46GAS2
    2002-2006JeepWranglerX46GAS2
    2006JeepWrangler65th Anniversary Edition46GAS2
    We’re looking for stars!
    Let us know what you think
    Questions & Answers
    Have a question?
    Be the first to ask something about this product.

    Product Highlights

    • Forged_Pinion_Gear1-352x332-1

      Forged-Gear Strength

    • DSC02493 rev

      Instant Engagement

    • ARB Warehouse Inventory rev

      Five-Year Warranty

    • 2016_KOH_1022-rev

      Ultra-4 Official

    ARB-BlackFriday2023 (1380 x 1060 px)-6

    VERIFY FITMENT

    Differentials are not one size fits all; there may be differences for the same application. Be sure to verify fitment before ordering.

    Verify Fitment

    Features

    airlocker

    BONDED SEAL

    Steel reinforced, elastomer-bonded annular seal has been proven to handle 20,000+ cycles under the most extreme climatic temperatures on earth.

    FLANGE CAP ASSEMBLY

    A billet-machined, alloy steel spider block supports the cross shafts, using the torque applied at each shaft to support the next shaft along.

    AIR SUPPLY

    At the flick of a dash-mounted switch, compressed air is delivered to the seal housing assembly via a nylon air line.

    CLUTCH GEAR

    ARB's patented locking system actually supports the side gear teeth, giving you more torque handling capability, exactly when you need it.

    TWO-PIECE DESIGN

    At the flick of a dash-mounted switch, compressed air is delivered to the seal housing assembly via a nylon air line.

    SPLINED SIDE GEAR

    High-grade surface treatments, forged nickel alloy steel and ARB's patented timed locking system make this the most ‘lockable’ gear in the industry.

    WAVE SPRING


    WAVE SPRING

    Instead of a complex external actuator system to engage/disengage the lock, ARB Air Lockers® use up to 12 return springs to support the entire profile of the locking gear for a fast, positive and independent disengagement.

    PINION GEAR

    Combining the strength of forged nickel alloy steel with redefined gear-tooth geometry, ARB has revolutionized locking differential gear design to yield structural advantages of up to 30% over commercially available high strength gears.

    SPIDER BLOCK

    Steel reinforced, elastomer-bonded annular seal has been proven to handle 20,000+ cycles under the most extreme climatic temperatures on earth.

    LONG CROSS SHAFT

    Alloy steels and performance surface technology make for a high-pressure running fit that can handle an enormous amount of punishment.

    DIFF CASE

    Fully machined, one-piece nodular iron diff carrier case offers the rigidy of a one-piece factory differential with twice the standard number of pinion gears to cope with the torque.

    CROSS SHAFT RETAINING PIN

    Custom made, one-piece hardened retaining pins lock into the assembly using a tapered thread junction.

    FORGED GEARS

    With phenomenal forces being applied to the side and pinion gears within the differential, ARB has invested heavily in the application of forged gears, typically found in heavy-duty commercial, race and agricultural transmissions.

    TRUSTED TRACTION

    A relentless commitment to research and design, the use of quality materials, and an uncompromising approach to manufacturing have all contributed to the Air Locker’s® success in over 100 countries worldwide. Designed and manufactured in Australia, you can trust ARB Air Lockers® for traction in just about any terrain - rock, clay, gravel, sand, snow or mud.

    WINNER'S CIRCLE

    ARB Air Lockers® continue to dominate the world’s toughest off-road events, namely Ultra4's King of the Hammers. Used by some of the biggest names in off-road competition, Air Lockers® are just as at home plugging through mud or scaling near-vertical rock ledges as they are on your local trail. Competition drivers stake their reputations on quality and reliability. If they can trust Air Lockers® to get them across the finish line, then you can be sure they’ll survive anything you throw at them off-road.