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170111 - Bulkhead Kit – 5mm to 3.5mm – O-Ring Type

Original price - Original price €26,50
Original price
€26,50
€26,50 - €26,50
Current price €26,50
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand ARB
Air Locker Bulkhead Kit - 5mm to 3.5mm, O-Ring Type. This fitting kit provides the hardware required to pass the pneumatic airline through the differential housing wall in ARB Air Locker installations.

The kit uses the revised O-ring style design, compatible with 3.5mm copper airline, and adapts installations that previously used 5mm airline tubing. The revised fittings are identifiable by three notches and install without differential removal. Compatible with Air Lockers produced from May 2009 onwards (serial numbers 09050000 and higher).
Alternative Codes
170111

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).


When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business dayscontact us before ordering.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the Air Locker bulkhead kit for?
The bulkhead kit passes the pneumatic airline through the differential housing wall on ARB Air Locker installations. It's the O-ring style version, adapting installs from 5mm airline to 3.5mm copper airline, and provides the sealed feed-through hardware needed at the diff.
Which ARB Air Lockers is this O-ring kit compatible with?
This O-ring bulkhead kit suits ARB Air Lockers produced from May 2009 onwards, serial numbers 09050000 and higher, running 3.5mm copper airline. If your Air Locker predates that, it likely used the older 5mm airline setup, so check your serial number first.
How do I tell the revised O-ring fittings apart, and do I need to remove the diff?
The revised O-ring fittings are identifiable by three notches, which set them apart from the earlier style. They also install without removing the differential, so the airline feed-through can be fitted with the diff in place. That makes it a more straightforward job than older kits.