Axle & Transmission Breather Vent Filter in 316L Stainless Steel (AISI 316L (1.4404)) is used for letting differentials, axles and gearboxes exhale and inhale as they heat and cool, while a sintered element keeps water, mud and dust out. The alloy gives superior resistance, including chlorides, brines, food CIP and mild acids and is essentially non-magnetic, with a practical service limit of approx. +550 °C continuous.
Alloy Properties
| Grade designation | AISI 316L (1.4404) |
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| Magnetic response | Essentially non-magnetic |
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| Service temperature | approx. +550 °C continuous |
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| Corrosion characteristic | Superior resistance, including chlorides, brines, food CIP and mild acids |
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Specifications of Axle & Transmission Breather Vent Filter Available in 316L Stainless Steel
| Size | Outer diameter (mm) | Length (mm) | Micron rating (u00b5m) | Thread |
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| M10 u00d7 1 | 14 | 18 | 40 | M10 u00d7 1 |
| M14 u00d7 1.5 | 19 | 22 | 40 | M14 u00d7 1.5 |
| 1/8 NPT | 15 | 20 | 60 | 1/8-27 NPT |
Where 316L Stainless Steel Axle & Transmission Breather Vent Filter Is Used
- Off-road 4×4 owners: remote breather kits that move the vent above water-crossing depth.
- Truck & bus fleets: transmission and axle breathers.
- Industrial gearbox makers: breathers on conveyor and mixer drives.
- Agricultural machinery: axle breathers on tractors working in mud.
Ordering Axle & Transmission Breather Vent Filter in 316L Stainless Steel
- Thread: M10 × 1, M14 × 1.5 or 1/8 NPT — match the housing.
- Micron rating: 40–60 µm sintered stainless breathes freely while blocking grit.
- Location: Specify a remote hose kit where the housing can be submerged.
Mistakes to Avoid with Axle & Transmission Breather Vent Filter
- A blocked breather that pressurizes the housing and pushes oil past the seals.
- Leaving the vent at axle height on a vehicle that wades, so water is drawn in as the axle cools.
