2055336 Original Loader Parts Gearbox Friction Plates for ZW250 ZW310-5A ZW330-6

Part number 2055336 is the official part number for Hitachi's original loader gearbox gasket. This component is a key static sealing element between the mating surfaces of gearbox housings such as gearboxes, transfer cases, or drive axles. It is responsible for forming a reliable seal at the flange or end cover connection of the gearbox, preventing internal gear oil leakage, and blocking external dust, moisture, and other pollutants from entering, ensuring the cleanliness of the gearbox interior and stable lubrication system pressure. As an original standard component, it is mainly suitable for the joint surface of the gearbox housing of Hitachi ZW series wheel loaders, such as ZW180, ZW220, ZW250, ZW310, ZW330, ZW370 and other models.

This original gearbox gasket is a specialized sealing gasket. Its core function is to produce plastic or elastic deformation under the pre tightening force of bolts on the joint surface of the box, accurately fill the micro unevenness between the two metal joint surfaces, and form a leak free sealing barrier. As an original part, it is usually made of high-quality composite fibreboard, asbestos free cork rubber or composite materials with metal skeleton, and has good compression resilience, oil resistance (applicable to gear oil) and anti-aging performance. Its thickness is precisely controlled to ensure that the axial clearance of internal components such as bearings and gears after assembly of the box is within the design range.

The maintenance core of the gearbox gasket is to replace it with a new part after each disassembly of the box, and ensure that the installation surface is clean and flat. Timing of replacement: After any maintenance work involving the disassembly of the gearbox end cover, side cover, or housing joint surface, a brand new original gasket must be replaced, and the reuse of old gaskets is strictly prohibited. Preparation before installation: After disassembling the old gasket, a plastic scraper or specialized cleaning tool must be used to thoroughly remove all old gasket residue, sealant, and oil stains on the two mating surfaces, ensuring a smooth, flat, and scratch free surface. Installation specification: Accurately align the new gasket and place it on the cleaned joint surface, ensuring that all bolt holes are aligned.