Air Locker Differential Lock – Nissan H233B 31-spline (RD136) – ARB

The ARB Air Locker Nissan H233B differential (model RD136) is a premium solution for drastically improving the traction of your Nissan Patrol Y60 or Y61. Designed by ARB, the world leader in locking differentials, this system offers instant and on-demand locking, directly from the cabin.

🔥 Highlights

• 100% On-demand traction: fully locks both wheels to maximize grip in difficult conditions.
• Easy pneumatic activation from inside the vehicle, without leaving your seat.
• Ultra-rugged two-piece design, with few moving parts for maximum reliability
• Operates as an open differential when unlocked, for normal road handling.

🚗 COMPATIBILITY

This differential is intended for:

Front H233B axle

Spline count: 31 teeth

⚙️ KIT CONTENTS

• ARB RD136 Air Locker differential
• Activation switch
• 12V solenoid valve
• Air line
• Bulkhead fitting and connectors
• Installation instructions
  (Air compressor required, not included)

The kit does not include bearings and they must be purchased separately. (Timken #32010X / ARB #160116)

💡 HOW IT WORKS

The ARB Air Locker is a pneumatically locking differential. Once activated, it prevents the internal gears from rotating independently, thereby linking both axle shafts for maximum traction. When deactivated, it behaves like a standard differential. Activation can be performed at any speed, making it a very practical solution for technical off-roading.

🛠️ INSTALLATION AND AIR COMPRESSION

This system requires a 12V air compressor (sold separately) to engage the locker. The included components allow you to connect the air to the differential with the switch and valve.