32.0 (1.26") shaft diamter
Navara D21, D22 (6 cyl.) 1986 on rear
Pathfinder WD21,R50 (6 cyl.) 1986 - 2005 rear
Y61, Patrol GU 1998 on front
Y60, Patrol GQ 1988 - 1998 front
Terrano II Wagon 1997 - 2002 rear
RD136 require the higher rated 50mm ID carrier bearing (Timken #32010X - ARB #160116).
Previously RD09 , RD78 , RD78A
The ARB Air Locker is a pneumatic locking differential that uses air to facilitate the locking of both axles. This action converts your differential from a conventional open to a full spool type axle supplying 100% power to both wheels to keep you going through the worst terrain.
A relentless commitment to research and design, the use of quality materials, and an uncompromising approach to manufacturing have all contributed to the Air Locker’s success in over 100 countries worldwide.
Designed and manufactured in Australia, ARB Air Lockers will enhance the traction of your 4×4 in just about any terrain, whether it’s rock, clay, gravel, sand, snow or mud.
Now with a state-of-the-art two piece design available right across the range, forged gears for the ultimate in strength and durability, and an industry-leading five year warranty, ARB Air Lockers are better built and better backed than ever before.
Strength, durability and resistance to fatigue in all Air Locker components is paramount. With phenomenal forces being applied to the side and pinion gears within the differential, ARB has invested heavily in the application of forged gears, typically found in heavy duty commercial, race and agricultural transmissions. When combined with ARB’s patented ‘timed gear’ design, the resulting strength of the whole assembly is amplified.
Two Piece Design
Housing this superior internal gear train in a two-piece case brings further benefits. Machining a case from two pieces instead of three results in a much higher dimensional accuracy of the finished assembly and has allowed ARB engineers to improve the design of other elements, resulting in a reduction of moving parts, increased strength and a more responsive activation.
ARB onboard air compressor required to activate Air Lockers (sold separately)
Images used for demonstrative purposes only
UK Mainland and International orders are sent via Courier. Most orders are dispatched within 24 hours, and are sent on a next day service (UK Mainland Only), however sometimes it can take 3-5 working days for you to receive your delivery depending on how busy the Courier network is and any shipping disruptions.
Click and Collect is available at no charge to our branches. Customers will be contacted upon completion of their orders and notified that they are now ready for collection.
Douglass Motors offset our carbon emissions produced by all of our deliveries. We are supporting the Pachama project, more details can be found here.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at firstname.lastname@example.org. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at email@example.com.
Most of our orders are shipped to you by DHL. On orders under £50.00 you will be presented with the option to choose from available couriers who you'd like to pay to have ship your order. In all instances you will be sent tracking information or contact details regarding your shipment.
We aim to get your Douglass Motors order to your door as quickly as possible, typically within 1-3 business days using our standard courier services. Some exceptions apply.
Yes, absolutely! If your order has been lost or damaged in transit then please contact us right away. You can do that here.
Yes! As soon as your item has been dispatched by the team here at Douglass Motors you will receive tracking information by sms and email.
We accept all major Credit and Debit card providers in addition to ApplePay, GPay, ShopPay and Laybuy. Unfortunately, we cannot accept cheques or money orders.
Douglass Motors uses 3D Secure Verification and leading payment partner Stripe to handle all secure payment transactions.
At this time the only alternative payment method supported is Laybuy.
We're sorry to hear you're not 100% satisfied with your Douglass Motors order, to arrange a return simply contact us and we'll guide you through the simple process every step of the way.
We offer a fully furnished returns process, and our shipping partners DHL and TNT will collect your return on our behalf at no cost to you.