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 21 Items.

Results 1 - 20 of 20

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 Dana 44 RD116

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

Part Number: ARB-RD116

Not Yet Reviewed

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ARB Air Locker 27 Spline Differential Dana 35 RD102

Differential Carrier, Air Locker, Nodular Iron, Rear, Dana 35, Kit

Part Number: ARB-RD102

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

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 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

ARB Air Locker 30 Spline Differential Dana 60 RD163

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

Part Number: ARB-RD163

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 Spline Differential Dana 44 RD109

Differential Carrier, Air Locker, Nodular Iron, Dana 44, Kit

Part Number: ARB-RD109

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 Dana 44-A (aluminum) RD226

Differential Carrier, Air Locker, Nodular Iron, Rear, Dana 44-A (Aluminum), Kit

Part Number: ARB-RD226

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 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 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 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 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

ARB Air Locker 32 Spline Differential Dana M200, Jeep Wrangler JL RD245

Differential Carrier, Air Locker, Nodular Iron, Rear, Dana M220, Jeep Wrangler JL, Kit

Part Number: ARB-RD245

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ARB Air Locker 35 Spline Differential Dana 44/M200, Jeep Wrangler JL RD246

Differential Carrier, Air Locker, 12 Cover Bolt, 35 Spline Axle, Nodular Iron, Dana 44, Dana M220 Jeep, Each

Part Number: ARB-RD246

Not Yet Reviewed

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ARB Air Locker 29 Spline Differential AMC Model 20 RD186

Differential Carrier, Air Locker, Nodular Iron, Rear, AMC Model 20, Kit

Part Number: ARB-RD186

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 Spline Differential Dana 44 RD113

Differential Carrier, Air Locker, Nodular Iron, Dana 44, Kit

Part Number: ARB-RD113

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 29 Spline Differential Dana M200, Jeep Wrangler JL RD244

Differential Carrier, Air Locker, Nodular Iron, Rear, Dana M200, Jeep Wrangler JL, Kit

Part Number: ARB-RD244

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 29 Spline Differential AMC Model 20 RD187

Differential Carrier, Air Locker, Nodular Iron, Rear, AMC Model 20, Kit

Part Number: ARB-RD187

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 Dana 30 RD104

Differential Carrier, Air Locker, Nodular Iron, Front, Dana 30, Kit

Part Number: ARB-RD104

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 Dana 60 RD162

Differential Carrier, Air Locker, Nodular Iron, Rear, Dana 60, Kit

Part Number: ARB-RD162

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 Spline Differential Dana 35 RD105

Differential Carrier, Air Locker, Nodular Iron, Rear, Dana 35, Kit

Part Number: ARB-RD105

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 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 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

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