ARB Air Locker RD136 for Nissan H233B Rear Axle — 31-Spline Design

Description

The ARB RD136 Air Locker is the ultimate selectable traction aid for Nissan vehicles equipped with the H233B rear axle and 31-spline shafts. Designed for serious off-road use, this locker provides 100 percent traction on demand with the flip of a switch—no need to stop or leave the driver’s seat.

Using a pneumatically actuated locking system inside the differential, the RD136 instantly locks both axle shafts together to eliminate wheel spin in low-traction situations. When unlocked, it operates as a standard open differential for normal driving. The rugged two-piece design and minimal moving parts offer unmatched strength and reliability, while the steel-reinforced elastomer seal stands up to extreme temperatures.

Perfect for demanding off-road terrain from Utah’s slickrock to muddy forest roads, this Air Locker transforms your Nissan into a true trail machine.

Note: Requires air compressor (sold separately). Must use 50mm ID carrier bearings (part number 160116) for optimal bearing life.

Features & Benefits:

• Fits Nissan H233B rear axle with 31 spline axle shafts

• Provides 100% traction on demand without compromising on-road drivability

• Pneumatic activation from the driver’s seat for instant engagement at any speed

• Two-piece housing with minimal moving parts for maximum strength and durability

• Patented timed locking mechanism ensures fast and consistent performance

• Reinforced annular seal withstands extreme climates and heavy-duty use

• Includes differential, solenoid, air line, switch, and bulkhead fittings

• 5-year manufacturer warranty

• Air compressor required (sold separately)

Fitment Info:

• Axle: H233B

• Position: Rear

• Axle Shaft Diameter: 1.26 in

• Spline Count: 31

• Gear Ratio: All

• Bearing Requirement: 50mm ID carrier bearings (Part #160116)

Compatible Vehicles (partial list):

• Nissan D21 Pickup (1986–1997)

• Nissan Pathfinder (1987–2005)

• Nissan Frontier (1998–2004)

• Nissan Xterra (2000–2001)

• Nissan Pathfinder Armada (2004)

• Nissan Pickup (1995–1997)

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