Piranha Diff Breather Kit
$75.00
For diffs, gear box, transfer box (transmission). A standard diff breather allows for expansion, as the diff heats up, a one way valve allows hot air out of the diff. If the transmission cools quickly, (ie. a water crossing) the air inside contracts like it's "taking a breath" Air cannot get in via the standard breather so it now takes the line of least resistance - past the oil seals,. This is OK but if they are under water the diff sucks in water. (oil seals are designed to keep oil in, not water out) Piranha diff breathers allow for easy access for air in and out, they are a snorkel for your 4WD transmission.
Know before you buy
Before you add to your engine
Catch cans, pre-filters, breathers and throttle controllers are made for specific engines. Here's what to check so the part suits yours.
- Made for your engine
These parts are engine specific, often down to the engine code and build date. Check the listing's fitment against your vehicle.
- What it actually does
A catch can collects oil mist from the engine's breather before it reaches the intake. A pre-filter catches fuel contaminants before the factory filter. A throttle controller changes how the accelerator pedal responds.
- Emissions
VicRoads' general approvals cover most electrical work, but not changes that affect emissions or safety systems (VSI 8). Anything that changes how the engine runs needs that check.
- Servicing
Catch cans need draining and filters need changing on a schedule. Check the maker's service interval before you buy.
Common questions
Does a throttle controller add power?
No. It changes how quickly the engine responds to the accelerator pedal, not the engine's output.
Does a catch can need maintenance?
Yes. The collected oil has to be drained regularly; the maker's instructions give the interval.
Will a performance chip affect my registration?
VicRoads' general approvals don't cover changes that affect emissions (VSI 8). Check how any engine change is approved before fitting it.