# ARB Airlocker 29 Spl Fr Lr Discovery S3 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)
-   Not compatible with vehicles installed with OE lockers

This Part Fits:

Year

Make

Model

Submodel

2006

Land Rover

LR3

Base

2005-2009

Land Rover

LR3

HSE

2009

Land Rover

LR3

HSE Lux

2005-2008

Land Rover

LR3

SE

2011-2014

Land Rover

LR4

Base

2010-2014

Land Rover

LR4

HSE

2012-2014

Land Rover

LR4

HSE Lux

2010

Land Rover

LR4

V8

## Details

- **Price:** 1856.16 CAD
- **Vendor:** ARB
- **Type:** Differentials
- **Tags:** ClearanceItem:N, Core:N, CorePrice:0, Drivetrain>Differentials, EPA:N/A, fits_2006`Land Rover`LR3`Base~2005-2009`Land Rover`LR3`HSE~2009`Land Rover`LR3`HSE Lux~2005-2008`Land Rover`LR3`SE~2011-2014`Land Rover`LR4`Base~2010-2014`Land Rover`LR4`HSE~2012-2014`Land Rover`LR4`HSE Lux~2010`Land Rover`LR4`V8, LTL:N, MPN:RD217, Non-CARB:N, Prop65:Y, SpecialOrder:Y, TURN14_ID:222283

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1856.16 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
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- Photo - Primary
- Photo - Close Up
- Photo - out of package
- Photo - Unmounted
- Photo - Unmounted
- Photo - Unmounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/arb-airlocker-29-spl-fr-lr-discovery-s3-s-n)
> Updated: 2026-07-16