29558351 breather-transmissio Allison spare parts

29558351 breather-transmissio Allison spare parts

The Allison 29558351 breather-transmissio is a dedicated pressure balancing component for Allison automatic transmissions. It is used to balance the air pressure inside and outside the transmission, expel high-temperature oil vapors, and prevent external dust, moisture, and impurities from entering the transmission. It is a key small component that ensures the transmission breathes properly, prevents oil seal leakage, and extends oil life.
This product adopts a composite breathable structure and oil- and water-proof design. The shell is sturdy and durable, and the ventilation is smooth and unobstructed. It can still work stably under heavy-duty continuous operation and drastic oil temperature changes, effectively avoiding problems such as oil seal bulging, oil seepage, and oil leakage caused by excessive pressure in the chamber.

Core technical parameters:

-Part Number: 29558351
-Product Name: breather-transmissio
-Functions: Pressure balancing of the chamber, oil and gas venting, dust and water protection.
-Structure: Integrated vent valve structure with backflow prevention barrier
-Material: High-temperature resistant engineering plastic + metal base
-Operating temperature: -40℃～150℃
-Installation location: Vent on the upper part of the gearbox housing
-Protection rating: Oil-proof, dust-proof, splash-proof

Product advantages:

Original factory specifications, direct installation, simple installation, no modification required.
Balance the pressure inside the tank to protect the oil seal from leakage due to high pressure.
Effectively prevents dust and mud from entering the gearbox.
Smooth airflow prevents blockages and reduces abnormal oil temperature rise.
Small in size but crucial in function, an essential wear part for major repairs and maintenance.
Compatible with Allison 3000/4000, 4000RDS, HD/B500 and other series gearboxes.

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