4WD Diff Breather Kits & Breather Extension Kits
4WD Diff Breather Kits
Shop our full range of vehicle-specific diff breather kits and breather extension kits for 4WDs, utes and off-road vehicles.
A breather extension kit relocates low factory breathers to a higher position in the engine bay. This helps reduce the risk of water, mud and grit entering your differentials, gearbox, transmission or transfer case during river crossings, muddy tracks and other off-road driving.
Our range includes two-port and four-port breather kits for popular Toyota, Nissan, Ford, Mazda, Mitsubishi, Isuzu, Holden, Land Rover, Daihatsu and Volkswagen 4WDs.
Why Extend Your Factory Breathers?
Differentials, gearboxes and transfer cases heat up while your vehicle is being driven.
When a warm drivetrain is rapidly cooled during a water crossing, the pressure inside can drop. If a factory breather is submerged, blocked or positioned close to water and mud, contamination may be drawn into the drivetrain as the pressure equalises.
A raised breather system allows the drivetrain to breathe from a cleaner and higher position within the vehicle. Mitigating the risk of water and debris contaminating drivetrain oil.
Two-Port and Four-Port Breather Kits
Most of our vehicle-specific breather extension kits are available in two configurations.
Two-port breather kits are designed to extend the front and rear differential breathers.
Four-port breather kits can extend the front and rear differential breathers as well as the gearbox and transfer-case breathers.
The exact number and location of breathers can vary between vehicles. Check the individual product description before ordering to confirm which option is suitable for your 4WD.
Depending on the selected kit, components may include:
- Splash-resistant breather housing or mounting bracket
- Breather filters
- Breather hose
- Hose connectors
- Cable ties
- Mounting hardware
- Vehicle-specific fitting advice
Shop Breather Extension Kits by Vehicle Make
Choose your vehicle make to narrow down the available kits:
- Toyota diff breather kits
- Nissan diff breather kits
- Ford breather extension kits
- Mazda breather extension kits
- Mitsubishi breather extension kits
- Isuzu breather extension kits
- Holden breather extension kits
- Land Rover breather extension kits
- Daihatsu breather extension kits
- Volkswagen Amarok breather extension kits
Vehicle names and specifications can differ between countries. Check the individual product listing carefully or contact us with your vehicle’s make, model and year if you are unsure which kit you require.
Breather Kit Installation
Most breather extension kits can be installed using basic hand tools, with an approximate installation time of one to four hours.
Some vehicles may require drilling and tapping a thread for the supplied fittings. Installation requirements vary, so read the relevant product description and fitting information before beginning the installation.
New Zealand and Worldwide Shipping
Flatout Offroad ships breather extension kits throughout New Zealand. Most domestic orders arrive within one to four working days after dispatch. See our New Zealand delivery information for further details.
International orders are shipped using DHL Express. Shipping costs are calculated at checkout based on your delivery address and order size, and tracking is provided after dispatch. Read our international 4WD parts shipping information for estimated delivery times and overseas-order information.
Still unsure which breather kit fits your vehicle? Contact Flatout Offroad for breather kit fitment advice before ordering.