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ARB RD138 Air Locker Locking Differential - Kit

(2002-2006 Acura RSX; 1995-2019 Land Rover Range Rover; 2002-2004 Land Rover Discovery)

Manufacturer

Picture for manufacturer ARB

Part Number

RD138
7 reviews
Sale Price

$1,299.95

Estimated ship date Saturday, November 28

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARB RD138 Air Locker is a pneumatically-operated locking differential designed to provide maximum traction in challenging off-road conditions. When activated, the Air Locker locks both axle shafts together, forcing both wheels to turn at the same speed regardless of available traction, making it ideal for rock crawling, mud, sand, and steep terrain.

Key Features:

  • Pneumatic activation provides 100% lockup with equal power distribution to both wheels
  • Seamless engagement and disengagement—operates like an open differential when unlocked
  • Complete kit includes replacement differential carrier, dash-mounted activation switch, solenoid valve, air line, and bulkhead fittings
  • Forged steel construction with heat-treated internals for exceptional strength and durability
  • Can be engaged or disengaged on-the-fly at any speed
  • No impact on fuel economy or tire wear when unlocked

The ARB Air Locker is recognized worldwide as the premier traction aid for serious off-road enthusiasts. Unlike limited-slip or automatic locking differentials, the Air Locker gives you complete control over when and where you need maximum traction, while maintaining normal open differential operation for everyday driving.

Products specifications

Fits

2002-2006 Acura RSX; 1995-2019 Land Rover Range Rover; 2002-2004 Land Rover Discovery

Prop 65

No

Fitment Info 2

Axle: Rover Type; Position: Front; Shaft: 1.24 in; Spline: 24; Ratio: 3.54

Fitment Info 1

Axle: Rover Type; Position: Rear; Shaft: 1.24 in; Spline: 24; Ratio: 3.54

Color

Silver

Material

Steel

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