ARB Air Locker Bulkhead Fitting Kit - 3.5mm O-Ring Type

This bulkhead fitting kit is used where the copper air line enters your differential housing on an ARB Air Locker. The O-rings are the critical sealing component in this assembly. If your diff lock is leaking oil or failing to hold air pressure, a damaged or perished O-ring in the bulkhead fitting is a common cause. Ignoring a leak not only stops your locker from working when you need it most, but it can also lead to a significant loss of differential oil, potentially causing major mechanical damage.

Please check to see if this is the correct part number required for your application, as there is different bulkhead fitting kits available. this information can be found in your diff lock part breakdown diagram that comes with your diff lock.

ARB part number 170111

This part superseeds from 170105 with the 5mm line.

Features & Benefits

• Contains all the required O-rings and components to service one ARB bulkhead fitting.
• Made from quality, oil-resistant materials to ensure a long-lasting seal against air pressure and gear oil.
• Ensures reliable engagement of your ARB Air Locker by preventing pressure loss at the differential housing.
• A direct-fit service part, perfect for fixing leaks or for carrying as a critical spare on big trips.

Vehicle Fitment

• Suits ARB Air Locker

Please check your Air Locker's specifications to confirm compatibility. Please contact us with your VIN details if you require further assistance to confirm fitment.