• Air locker locking differentials allow you to tackle the toughest terrain. 
  • The world's premier traction aid, ARB air lockers keep you moving in all conditions.
  • A complete air locker kit: replacement differential, activation switch, solenoid valve, air line and bulkhead fittings.


Please note: Not all units are supplied with replacement carrier bearings.


Required Parts:


These parts are required for installing this product on your vehicle.

  • CKSA12 air compressor (extremely compact, operates up to 2 air lockers, not intended for oversized tire inflation) or 
  • CKMA12 air compressor (compact, operates up to 2 air lockers and will inflate tires when paired with a 171302) or
  • CKMTA12 air compressor (still compact, operates up to 2 air lockers when paired with 171503, will inflate tires AND run air tools when paired with a 171302 and will run even faster when paired with 171501air tank)


  • Fitting Details:

    This part number will fit the following makes/models:

    • Dana 40, 35 Spline, 3.92 Down

ARB RD109 Air Locker Differential Dana 44, 35 Spline, 3.92 and up

  • 40




11231 NW 20 Street Unit 139

14300 NW Freeway suite A23

Miami, Florida. 33172

Phone: 305-471-6999

Houston, Texas. 77040

Phone: 281-406-8738