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 38 Items.

Results 1 - 25 of 37

ARB Air Locker 35 Spline Differential Dana 60-HD RD166

Differential Carrier, Air Locker, Nodular Iron, Dana 60-HD, Kit

Part Number: ARB-RD166

Not Yet Reviewed

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ARB Air Locker 30 Spline Differential GM 10.5 Inch (14-bolt) RD114

Differential Carrier, Air Locker, Nodular Iron, 30-spline, Rear, GM 10.5 in. (14-bolt), Chevy, GMC, Kit

Part Number: ARB-RD114

Not Yet Reviewed

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ARB Air Locker 30 Spline Differential Dana 44 RD117

Differential Carrier, Air Locker, Nodular Iron, 30-spline, Dana 44, Kit

Part Number: ARB-RD117

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ARB Air Locker 30 Spline Differential AAM 11.5 Inch 14-bolt RD139

Differential Carrier, Air Locker, Nodular Iron, Rear, AAM 11.5 in. 14-bolt, Kit

Part Number: ARB-RD139

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

ARB Air Locker 35 Spline Differential Ford 10.25/10.50 Inch RD140

Differential Carrier, Air Locker, Nodular Iron, Rear, Ford 10.25 in., Kit

Part Number: ARB-RD140

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 35 Spline Differential Dana 60-HD RD167

Differential Carrier, Air Locker, Nodular Iron, Dana 60-HD, Kit

Part Number: ARB-RD167

Not Yet Reviewed

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ARB Air Locker 27 Spline Differential Dana 30 RD101

Differential Carrier, Air Locker, Nodular Iron, Front, Dana 18, Kit

Part Number: ARB-RD101

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 35 Spline Differential Dana 70/80 RD172

Differential Carrier, Air Locker, Nodular Iron, Kit

Part Number: ARB-RD172

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

ARB Air Locker 33 Spline Differential AAM 9.25/9.50 14-bolt RD254

Differential Carriers, Air Locker Differentials, AAM 9.25/9.50 14-bolt, 12 Cover Bolts, 33-spline Axle, Steel, Front, for Nissan, Each

Part Number: ARB-RD254

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

ARB Air Locker 27 Spline Differential Dana 30 RD100

Air Locker, Dana 30, 27-Spline, 3.73 and Up Ratio, Each

Part Number: ARB-RD100

Not Yet Reviewed

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ARB Air Locker 35 Spline Differential Dana 44 RD147

Differential Carriers AirLocker, DANA 44, 35SPL, 3.73&DN, S/N.........

Part Number: ARB-RD147

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

ARB Air Locker 29 Spline Differential Chrysler 8.25 Inch RD93

Differential Carrier, Air Locker, Nodular Iron, Rear, Chrysler 8.25 in., Kit

Part Number: ARB-RD93

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

ARB Air Locker 29 Spline Differential Land Rover RD217

Differential Carrier, Air Locker, Nodular Iron, Front, Land Rover, Kit

Part Number: ARB-RD217

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 30 Spline Differential GM 8.5 Inch RD222

Differential Carrier, Air Locker, Nodular Iron, Rear, GM 8.5 in., Kit

Part Number: ARB-RD222

Not Yet Reviewed

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ARB Air Locker 31 Spline Differential Nissan C200K RD196

Differential Carrier, Air Locker, Nodular Iron, Nissan C200K, Kit

Part Number: ARB-RD196

Not Yet Reviewed

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ARB Air Locker 35 Spline Differential Dana 60-HD RD169

Differential Carrier, Air Locker, Nodular Iron, Dana 60-HD C-Clip, Kit

Part Number: ARB-RD169

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 32 Spline Differential Dana 70/80 RD171

Differential Carrier, Air Locker, Nodular Iron, Kit

Part Number: ARB-RD171

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 33 Spline Differential Nissan R230 RD137

Differential Carrier, Air Locker, Nodular Iron, Rear, Nissan R230, Kit

Part Number: ARB-RD137

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 28 Spline Differential AAM 760 IFS RD148

Differential Carrier, Air Locker, Nodular Iron, Front, AAM 760 IFS, Kit

Part Number: ARB-RD148

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 32 Spline Differential Nissan H233B RD149

Differential Carrier, Air Locker, Nodular Iron, Front, Rear, for Nissan H233B, Kit

Part Number: ARB-RD149

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

ARB Air Locker 35 Spline Differential Dana 60-HD RD168

Differential Carrier, Air Locker, Nodular Iron, Dana 60-HD C-Clip, Kit

Part Number: ARB-RD168

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 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 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

ARB Air Locker 35 Spline Differential Dana 44, Jeep Wrangler JK RD157

Differential Carrier, Air Locker, Nodular Iron, Dana 44, Jeep Wrangler JK, 35-Spline, Kit

Part Number: ARB-RD157

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

ARB Air Locker 31 Spline Differential Ford 8.8 Inch RD81

Air Locker, Ford 8.8 in., 31 Spline Shaft, Complete Kit

Part Number: ARB-RD81

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

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Auburn Gear Select-A-Loc 31 Spline Differential Ford 8.8 Inch 545002

2.5 out of 5 stars ( 2 )

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