29558328 4-inch filter Allison spare parts

29558328 4-inch filter Allison spare parts

The Allison 29558328 4-inch filter is an original equipment manufacturer (OEM) fluid filter component specifically designed for Allison transmissions. It is precisely compatible with Allison 1000/2000/3000/4000 series heavy-duty automatic transmissions, and also compatible with commercial vehicles and construction machinery from brands such as Mercedes-Benz, DAF, and Peterbilt that use Allison transmissions. As a core filter element in the transmission fluid system, its primary function is to intercept impurities larger than a set precision through a stacked filtration structure. These impurities include iron and copper shavings generated by gear meshing, fiber powder from clutch plate wear, and colloids and sludge formed by high-temperature oxidation of the fluid. This maintains the fluid cleanliness within the standard range, preventing impurities from clogging valve bodies and shift valves, ensuring smooth transmission fluid circulation, and reducing wear on precision components. It is widely used in heavy-load, frequent-shifting scenarios such as long-haul freight, mining operations, and construction projects. With its strong adaptability, high filtration efficiency, stability, and durability, it is the preferred replacement part for OEM maintenance.

Core technical parameters

–Model: 29558328
–Product Name: 4-inch Filter
– Operating temperature: -40°C to +120°C
– Product Specifications: 4-inch standard size, perfectly matching the original Allison 29558328 dimensions; filtration accuracy up to 20μm; operating pressure 0.08~1 MPa; backwash pressure >0.25 MPa; backwash time 20~60 seconds.
– Product weight: 1.8kg
– Product Type: Original factory grade 4-inch disc filter, single unit assembly, featuring an integrated sealing structure, including the filter housing, disc filter assembly, seals, inlet and outlet interfaces, and other core components. The 4-inch size conforms to the original factory installation dimensions.
– Compatible Systems: Allison 1000/2000/3000/4000 series heavy-duty automatic transmissions, also compatible with commercial vehicles and construction machinery from brands such as Mercedes-Benz, DAF, and Peterbilt equipped with Allison transmissions, and suitable for transmission fluid filtration scenarios in heavy-duty commercial vehicles, mining wide-body trucks, and construction vehicles.
– Suitable operating conditions: Suitable for heavy-duty, frequent gear shifting, and high-load scenarios such as long-distance freight, mining operations, and engineering construction. It can work stably in harsh environments such as oil immersion, temperature fluctuations, and high levels of impurities.

Product Advantages

1. Original factory compatibility, easy installation: 100% compatible with Allison 29558328 original specifications, the 4-inch standard size precisely corresponds to the inlet and outlet interfaces, and can directly replace the old filter without modifying the oil pipeline structure. It is compatible with multiple scenarios such as commercial vehicles and construction machinery.
2. High efficiency and precise purification: The stacked filter structure combined with glass fiber filter media can achieve a filtration accuracy of up to 20μm, which can effectively intercept various impurities in the oil and control the cleanliness of the oil within the standard range, avoiding impurities from clogging the oil passage and wearing precision parts. It also has a convenient backwashing function to remove dirt from the filter disc and extend the service life.
3. Durable and environmentally adaptable: High-strength corrosion-resistant shell + wear-resistant filter disc + fluororubber seals, impact-resistant, wear-resistant, oil-resistant, and corrosion-resistant, can withstand high-load filtration conditions, has been rigorously tested, has a long service life, large dirt holding capacity, and can effectively extend the filter replacement cycle.

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