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ARB Air Locker Kit - 11.5in | 2001-2013

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SKU: RD139


The ARB AAM 11.5" air locker can instantly lock differentials and allow you to tackle the toughest off-road terrain. The world's best traction aid, ARB Air Lockers keep you moving in all conditions.

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Features and Benefits

  • Vastly improved traction means less reliance on momentum, reducing the likelihood of vehicle damage
  • Easy, convenient operation without leaving the comfort and safety of the driver's seat
  • Ultra durable and extremely strong
  • Patented gear technology and 2-piece design ensures optimal locking strength
  • Forged gears provide superior strength and durability
  • Incredibly simple, yet effective, design employs minimal moving parts for maximum reliability
  • For 4WD and 2WD applications
  • Easy maintenance; no special additives required
  • Installation Requires ARB Compact Air Compressor - CKSA12

As with all of ARB’s Performance Lockers, the RD139 features ARB’s patented Timed Gear Technology, which offers the highest locking strength while maintaining split-second unlocking ability. The steel reinforced, bonded seal has been designed to handle the most extreme climactic temperatures on earth complementing the competition bred strength of the locker.

About ARB

ARB has been manufacturing 4x4 parts for over 40 years. ARB Air Lockers will amplify the traction of your 4x4 on challenging trails. It gives the off-road driver what they need in traction, control and performance. They come complete with vehicle specific mounting kits for fuss free installation. ARB parts are all developed, engineered and fabricated in-house in Australia.


GM 2500HD and 3500 Duramax Silverado - Sierra 6.6 V8 Diesel Trucks




2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013

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