ARB Air Locker Differentials

4.73 out of 5 stars 11 Customer Reviews

A 4x4 and traction go hand-in-hand; however, standard (open) differentials allow each wheel to turn independently to eliminate binding in turns. Off-road, this beco

A 4x4 and traction go hand-in-hand; however, standard (open) differentials allow each wheel to turn independently to eliminate binding in turns. Off-road, this becomes a problem as engine power takes the path of least resistance—to the wheel with little or no traction. Limited slip differentials offer some improvement, but too often the slipping is not "limited" enough to maintain forward progress. Automatic locking differentials also have disadvantages; noisy when disengaging, they can also upset on-highway driving characteristics.

Created to provide traction on demand, without sacrificing highway driving performance, ARB Air Locker differentials employ a 12 V ARB air compressor (sold separately) to pneumatically operate a solid and durable locking mechanism inside the differential. When activated, the Air Locker prevents the differential gears from rotating and 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 just like a conventional open differential.

ARB Air Lockers are available in over 100 configurations for a wide range of vehicles and can be installed in both front and rear axles. Installation should be performed by a qualified differential technician, although no special tools or skills are required, apart from those necessary for fitting a standard differential. ARB also offers three compressor models suitable for Air Locker operation, two of which can be used to inflate tires and operate other equipment.

Additional features of ARB Air Lockers include:

* 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; only the highest quality materials used in construction
* 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
* Thoroughly tested and proven
* Most sold as kits with differential, activation switch, solenoid valve, air line, and bulkhead fittings
* Front and rear Air Lockers available for most makes and models
* For 4WD and 2WD applications
* Easy maintenance; no special additives required
* Also offered in ARB Traction Packs that include two Air Lockers, a compressor, and accessories for tire inflation

Showing In Stock Items. Show All 13 Items.

Results 1 - 13 of 13

ARB Air Locker 30 Spline Differential Toyota 8.0 (7.8) Inch RD132

Differential Carrier, Air Locker, Nodular Iron, Toyota 8.0 (7.8) in., Kit

Part Number: ARB-RD132

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ARB Air Locker 30 Spline Differential Toyota 8.875 Inch RD142

Differential Carrier, Air Locker, Nodular Iron, Toyota 8.875 in., Kit

Part Number: ARB-RD142

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 30 Spline Differential Toyota 8.875 Inch RD153

Differential Carrier, Air Locker, Nodular Iron, Rear, Toyota 8.875 in., Kit

Part Number: ARB-RD153

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 32 Spline Differential Toyota 8.875 Inch RD232

Differential Carrier, Air Locker, Nodular Iron, Rear, Toyota 8.875 in., 12-bolt Ring Gear, Kit

Part Number: ARB-RD232

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

ARB Air Locker 30 Spline Differential Toyota 8.15 Inch RD193

Differential Carrier, Air Locker, Nodular Iron, Rear, Toyota 8.15 in., Kit

Part Number: ARB-RD193

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 34 Spline Differential Toyota 8.0 Inch, IFS RD151

Differential Carrier, Air Locker, Nodular Iron, Front, Toyota 8.0 in., IFS, Kit

Part Number: ARB-RD151

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 27 Spline Differential Toyota 7.5 Inch, IFS RD90

Differential Carrier, Air Locker, Nodular Iron, Front, Toyota 7.5 in., IFS, Kit

Part Number: ARB-RD90

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 30 Spline Differential Toyota 8.0 Inch, IFS RD131

Differential Carrier, Air Locker, Nodular Iron, Front, Toyota 8.0 in., IFS, Kit

Part Number: ARB-RD131

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

ARB Air Locker 30 Spline Differential Toyota 8.0 Inch, IFS RD111

Differential Carrier, Air Locker, Nodular Iron, Front, Toyota 8 in. IFS, Kit

Part Number: ARB-RD111

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 30 Spline Differential Toyota 7.5 Inch, IFS RD121

Differential Carrier, Air Locker, Nodular Iron, Front, Toyota 7.5 in., IFS, Kit

Part Number: ARB-RD121

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 30 Spline Differential Toyota 8.4 Inch RD129

Differential Carrier, Air Locker, Nodular Iron, Rear, Toyota 8.4 in., Kit

Part Number: ARB-RD129

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 36 Spline Differential Toyota 10.5 Inch RD146

Differential Carrier, Air Locker, Nodular Iron, Rear, Toyota 10.5 in., Kit

Part Number: ARB-RD146

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

ARB Air Locker 32 Spline Differential Toyota 9.5 Inch RD152

Differential Carrier, Air Locker, Nodular Iron, Rear, Toyota 9.5 in., Kit

Part Number: ARB-RD152

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

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