Many drivetrain assemblies are fitted with a breather from the factory. These factory breathers are usually a one-way valve
mounted directly to the housing or remotely on a short tube. The shortfall with the factory breathers is that driving through
water crossings creates a vacuum caused by the drivetrain assembly being cooled rapidly by the water. This vacuum will
tightly close the valve shut causing air to be instantly drawn into the assembly through the seals. Many times the seals are
still submerged below water, leading to the water being drawn into the drivetrain. This will contaminate the oil and possibly
damage drivetrain components or your Air Locker.
The ARB Differential Breather Kit is designed to eliminate these shortcomings by providing a high flow, zero back pressure,
zero vacuum breather system. This is achieved with a high flow air filter within a central manifold that will allow up to four
drivetrain assemblies to be vented to one central location, ideally somewhere on the vehicle that will be above the water level
at all times. This kit is intended to replace your factory breathers and contains enough fittings and tubing to connect at least
two drivetrain assemblies. More tubing and push-in fittings can be purchased separately to connect up to four assemblies to
the central manifold.
The ARB Differential Breather Kit is unique in that it uses 8mm tubing (where most other kits use 6mm tubing). The larger size
tubing is essential in 4X4 applications where off camber driving can cause oil to enter and block smaller breather lines.
- The axle breather manifold is machined from billet aluminum and anodized, making it lightweight and resistant to the elements.
- The manifold has 4 axle breather ports allowing for between 1 and 4 breather lines to be connected. It is very compact allowing it to be installed in virtually any location.
- The kit comes with self tapping screws, but the manifold mounting holes are large enough to allow mounting using an M6 (1/4 inch) bolt or stud, which is the common size in most vehicle engine bays.
- The air filter is the ARB compressor air filter, which is a splash resistant air filter with a washable high flow sintered bronze filter cartridge.
- 8mm Polyethylene tubing is flexible, oil resistant, water resistant and heat resistant.
- 8mm tubing has been selected over the standard 6mm tubing to improve the air flow and reduced the
chance of oil blockages in long breather lines.
- The 8mm push-in fittings make the installation simple and fast.
Anodized Aluminium Manifold with 5 ports and 2 mounting holes
4 x 1/8BSP ports for connecting up to 4 breather lines
1 x 1/4 NPT ports for the air filter
Air filter assembly
4 x 8mm-1/8BSP push-in fittings
3 x 1/8BSP plugs for plugging unused ports
8m x 8mm polyethylene tubing
2 x self-tapping screws
25 x cable ties
- Axle Model: Dana 30, Dana 35, Dana 44, Dana 60, Dana 70
- Axle Position: Front, Rear
- Color: Black
- Shipping Weight: 1.2lb
- Shipping Dimensions: 11in x 10in x 3in (L x W x H)
Customer Submitted Photos
ARB Differential Breather Kit Reviews
This is a very high quality kit, but is not made for a specific application. That said, you have to make sure you have the additional fittings you need. The ARB kit uses 1/8" male BSP fittings, so the guy that said it "Warning! this doesn't fit dana 44 axles!" is only partially right. This is meant to be a line and breather kit, not a complete solution. You need to convert your axle fittings to work with the BSP threaded fittings. If you do that, this is a great way to have all your breathers terminate in the same place, with easy to use push lock fittings.
Warning! Does NOT fit Dana 44 axles. The fittings are too small. Plus, the hose is a smaller diameter, thus you can’t even use it to extend your existing hoses. The most expensive pack of zip ties you will ever buy...since that’s the only thing you will actually be able to use. I had to create an account just to warn you. You can thank me later.
High quality parts and overall product.