This O-ring is fitted to the ARB Air Locker bulkhead fitting, which is the component that passes through the differential housing to allow the air line to connect. This small but crucial part creates the seal between the bulkhead fitting and the differential housing, preventing both air from escaping and differential oil from leaking out.
Over time, due to heat cycles, pressure, and exposure to oil, the original O-ring can become hard, brittle, and lose its sealing ability. It may also be damaged or lost when servicing the differential or air lines. Replacing this O-ring is essential maintenance to ensure the reliable operation of your ARB Air Locker.
If this O-ring fails, your air locker will not work. The air compressor will continuously run, trying to build pressure, but the air will leak straight out of the differential housing. This leaves you without the crucial traction you need on difficult tracks and can also lead to differential oil being forced into your air line, potentially contaminating and damaging your expensive solenoid and compressor.
This part has been designed to fit
Please check vehicle fitment to confirm compatibility with your vehicle. Please contact us with your VIN details if you require further assistance to confirm fitment.
This is a genuine ARB replacement part, ensuring quality and perfect fitment for your Air Locker system.
With a relentless commitment to quality and innovation, ARB is a world leader in 4x4 accessories, providing trusted and reliable equipment for the most demanding off-road adventurers.
