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Boss Air Suspension

4 way diff gearbox breather kit to fit WG/WJ Jeep Grand Cherokee

4 way diff gearbox breather kit to fit WG/WJ Jeep Grand Cherokee

SKU:FWD-DB-41HKB4WB

Regular price $75.05 AUD
Regular price $0.00 AUD Sale price $75.05 AUD
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As a recreational off roader there is bound to be tracks you come across with stream or river crossings and even more common mud or bog holes. For these occasions we fit snorkels to our vehicles to allow our engines to still get clean air even in the deepest holes or crossings.
Many people forget that there differentials, gearboxes and transfer cases all have breathers as well and can be as low as the centre of your wheels which get easily submerged in the shallowest of holes or a partially flooded road let alone a river crossing.
HKB Performance full driveline and Diff Breathers kits are a cost effective way to safe guard and also reduce the service costs to the expensive driveline components of your pride and joy.
One of the most extreme times for your four wheel drives driveline is when off road or crossing water. Your driveline being at operating temperature when suddenly dropped in a mud or water hole the driveline housings get cooled rapidly which can cause a suction of air through the breather, at this point it is submerged in either mud or water which inturn gets sucked into the housings and mixed with the oil lubricating these parts.
HKB remote driveline breather kits are designed to extend the breathing point of your differentials, transfer case and gearbox to an area where water shall not reach such as the highest point in the engine bay, cabin or even inside your snorkel.

This kit will extend both differentials, transfer case and gearbox.

This kit contains:

  • One heavy duty stainless steel fixture
  • Four high flow breathers
  • Four female chrome plated push fittings
  • Four flex tube adaptor
  • Twelve metres tubing
  • Twelve cable ties
  • Two Stainless Steel screws
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Frequently asked questions

Why should I fit diff and drivetrain breathers?

Factory breathers are often short and located low, which can let water and dust enter when the components heat up and cool down. Extended breathers relocate the vents higher and use filters to reduce the risk of water and contamination entering differentials, gearboxes and transfer cases, especially in off-road and water crossing use.

How does this kit improve my vehicle's off-road capability?

This kit improves your vehicle's off-road capability by ensuring that the differential, gearbox, and transfer case breathers are positioned above potential water and mud levels. This prevents water from being sucked into the housings during sudden temperature changes when crossing water or mud, which can lead to severe damage.

Is this kit compatible with lifted Jeep Grand Cherokees?

Yes, the 4-way diff gearbox breather kit is compatible with lifted Jeep Grand Cherokees. It is designed to extend the breathers to a safe height, regardless of the lift, ensuring that your driveline remains protected from water and mud ingress.

Can I install this kit myself, or do I need professional help?

This kit is designed for easy installation and can typically be installed by someone with basic mechanical skills. However, if you are unsure or uncomfortable with the installation process, it is recommended to seek professional assistance to ensure proper fitment and function.

How does this breather kit compare to others on the market?

The Boss 4-way diff gearbox breather kit features high flow breathers and durable stainless steel components, providing superior performance and longevity compared to many other options. Its design ensures that breathers are effectively extended to a safe height, reducing the risk of contamination during off-road use.