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ARB®
RD121 Air Locker Series Differential - Direct Fit, Sold individually

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$1,113.95
Manufacturer #RD121
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Part:
Differential
Brand:
ARB
Location:
Front Or Rear
Condition:
New
Warranty:
5-year, unlimited-mileage ARB limited warranty
Quantity Sold:
Sold individually
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Product Fit:
Direct Fit
Series:
Air Locker Series

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2003-2008 Toyota Land Cruiser
All Submodels
All Engines
Shaft Spline 30, Ratio 3.73 And Down, 8 in. Dia., 53mm Bearing, 8 in.
2003-2011 Toyota 4Runner
All Submodels
All Engines
Shaft Spline 30, Ratio 3.73 And Down, 8 in. Dia., 53mm Bearing, 8 in.
2004 Toyota Tacoma
S-Runner
All Engines
Shaft Spline 30, Ratio 3.73 And Down, 8 in. Dia., 53mm Bearing, 8 in.
2004-2011 Toyota Tacoma
Base
All Engines
Shaft Spline 30, Ratio 3.73 And Down, 8 in. Dia., 53mm Bearing, 8 in.
2007 Toyota Tundra
All Submodels
All Engines
Shaft Spline 30, Ratio 3.73 And Down, 8 in. Dia., 53mm Bearing, 8 in.
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Product Information

AIR LOCKER DIFFERENTIAL

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.

  • 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)

ARB is the off-road authority since 1975, offering better design and better materials to create a better 4WD experience.

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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

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