Diff Breather Kits

Prevent water and mud from being sucked into your differentials, gearbox, and transfer case during river crossings with 4x4 extended diff breather kits from Driven Offroad. When hot driveline housings plunge into cold water, the air inside rapidly contracts and creates a vacuum—often drawing water straight past factory one-way valves or axle seals, emulsifying your gear oil.

An extended breather kit relocates your driveline vents high into the engine bay or cabin firewall using high-flow tubing and sintered or billet filters.

  • 2-Port & 4-Port Billet Manifolds: Centrally vents front and rear differentials, transmission, and transfer case from a single high-mount manifold.
  • Zero-Backpressure Two-Way Airflow: Allows housings to expand and contract freely without blowing out axle seals.
  • Complete Installation Hardware: Includes push-lock fittings, flexible oil- and heat-resistant tubing, filters, and mounting fasteners.

Cross Deeper Water with Confidence

Shop anodised billet diff breather kits from HPD, Direction Plus, Piranha Off Road, and PSR at Driven Offroad. Order online for rapid delivery across Australia.

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