# ARB Airlocker 11.5In 30 Spl Aa&M S/N. The world's premier traction aid, an ARB Air Locker(TM) 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. - Easy, convenient operation allows the user to concentrate on the terrain without leaving the comfort and safety of the driver's seat - Steel reinforced, elastomer bonded annular seal designed to handle the most extreme climatic temperatures on Earth - Two-piece design is ultra-durable and extremely strong ? minimal moving parts ensure maximum reliability - Kit includes: Air Locker differential, activation switch, solenoid valve, air line and bulkhead fitting - Provides 100 percent traction on demand without affecting on-road drivability or driveline wear - Patented ?timed' locking mechanism offers high strength and ultra-fast unlocking - Employs Minimal Moving Parts Ensuring Maximum Reliability - Air compressor required for operation (sold separately) This Part Fits: Year Make Model Submodel 2001-2004 Chevrolet Silverado 2500 Base 2001-2004 Chevrolet Silverado 2500 LS 2001-2004 Chevrolet Silverado 2500 LT 2004 Chevrolet Silverado 2500 WT 2001-2005 Chevrolet Silverado 2500 HD Base 2001-2006 Chevrolet Silverado 2500 HD LS 2001-2009 Chevrolet Silverado 2500 HD LT 2007-2009 Chevrolet Silverado 2500 HD LTZ 2003-2009 Chevrolet Silverado 2500 HD WT 2007 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 2500 HD Classic LT 2007 Chevrolet Silverado 2500 HD Classic WT 2006 Chevrolet Silverado 3500 LS 2006 Chevrolet Silverado 3500 LT 2006 Chevrolet Silverado 3500 WT 2007 Chevrolet Silverado 3500 Classic LS 2007 Chevrolet Silverado 3500 Classic LT 2007 Chevrolet Silverado 3500 Classic WT 2007-2009 Chevrolet Silverado 3500 HD LT 2007-2009 Chevrolet Silverado 3500 HD LTZ 2007-2009 Chevrolet Silverado 3500 HD WT 2003,2005-2010 Dodge Ram 2500 Laramie 2006-2010 Dodge Ram 2500 Power Wagon 2003-2010 Dodge Ram 2500 SLT 2006-2007 Dodge Ram 2500 Sport 2003-2010 Dodge Ram 2500 ST 2008-2010 Dodge Ram 2500 SXT 2010 Dodge Ram 2500 TRX 2006-2007 Dodge Ram 2500 TRX4 2003-2010 Dodge Ram 3500 Laramie 2003-2010 Dodge Ram 3500 SLT 2006-2007 Dodge Ram 3500 Sport 2003-2010 Dodge Ram 3500 ST 2008-2009 Dodge Ram 3500 SXT 2007 Dodge Ram 3500 TRX4 2002-2004 GMC Sierra 2500 Base 2001-2002 GMC Sierra 2500 SL 2001-2004 GMC Sierra 2500 SLE 2001-2004 GMC Sierra 2500 SLT 2003-2004 GMC Sierra 2500 WT 2002-2005 GMC Sierra 2500 HD Base 2001-2002,2006 GMC Sierra 2500 HD SL 2001-2007 GMC Sierra 2500 HD SLE 2001-2007 GMC Sierra 2500 HD SLT 2003-2007 GMC Sierra 2500 HD WT 2007 GMC Sierra 2500 HD Classic SL 2007 GMC Sierra 2500 HD Classic SLE 2007 GMC Sierra 2500 HD Classic SLT 2007 GMC Sierra 2500 HD Classic WT 2006 GMC Sierra 3500 SL 2006 GMC Sierra 3500 SLE 2006 GMC Sierra 3500 SLT 2006 GMC Sierra 3500 WT 2007 GMC Sierra 3500 Classic SL 2007 GMC Sierra 3500 Classic SLE 2007 GMC Sierra 3500 Classic SLT 2007 GMC Sierra 3500 Classic WT 2007 GMC Sierra 3500 HD SLE 2007 GMC Sierra 3500 HD SLT 2007 GMC Sierra 3500 HD WT 2013-2019 Ram 2500 Big Horn 2011-2019 Ram 2500 Laramie 2014-2015 Ram 2500 Laramie Limited 2011-2019 Ram 2500 Laramie Longhorn 2016-2019 Ram 2500 Limited 2013-2015,2019 Ram 2500 Lone Star 2012-2016 Ram 2500 Outdoorsman 2011-2019 Ram 2500 Power Wagon 2011-2018 Ram 2500 SLT 2011-2013 Ram 2500 ST 2013-2019 Ram 2500 Tradesman 2013-2019 Ram 3500 Big Horn 2011-2019 Ram 3500 Laramie 2014-2015 Ram 3500 Laramie Limited 2011-2019 Ram 3500 Laramie Longhorn 2016-2019 Ram 3500 Limited 2013-2015,2017,2019 Ram 3500 Lone Star 2011-2019 Ram 3500 SLT 2011-2013 Ram 3500 ST 2013-2019 Ram 3500 Tradesman ## Details - **Price:** 1794.0 CAD - **Vendor:** ARB - **Type:** Differentials ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1794.00 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Photo - Primary - Photo - Unmounted - Photo - Unmounted - Photo - Unmounted - Photo - Unmounted - Photo - Unmounted - Photo - Unmounted --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/arb-airlocker-11-5in-30-spl-aa-m-s-n) > Updated: 2026-06-25