ZF 0501.298.789 REPAIR KIT | OEM Genuine Part

Overview

The ZF 0501.298.789 REPAIR KIT is a critical OEM genuine assembly designed to restore sealing integrity and internal pressure regulation within ZF heavy-duty powershift transmissions. This kit, identified by SKU 0501.298.789, contains all necessary gaskets, seals, and wear components for the hydraulic control section. It sits directly between the main valve body and the 4699101108: HOUSING, ensuring that clutch pack actuation fluid remains free of contamination and at correct operating pressure. Without this repair kit, the transmission cannot maintain the precise hydraulic balance required for smooth gear engagement in construction machinery.

Symptoms of Failure

When the ZF 0501.298.789 REPAIR KIT begins to degrade, operators will notice specific performance issues. External oil leaks often appear around the housing mating surfaces, particularly near the 0501329881: HOUSING COVER. Delayed or harsh shifting occurs as internal seals lose elasticity, causing clutch pack pressure to drop. Erratic gear engagement under load is a common complaint, especially when the machine is cold. Finally, contaminated transmission fluid (dark or burnt smell) indicates that worn seals have allowed debris to bypass the filtration system.

Technical Specifications

Compatibility

This repair kit is engineered for ZF WG series transmissions commonly found in construction machinery. It is compatible with the following ZF models: WG180, WG200, WG120, and WG150. These transmissions are used in wheel loaders, telehandlers, and graders from manufacturers such as Liebherr, Caterpillar, and JCB. Always verify the transmission serial number before ordering. The kit also interfaces with the 4699102172: INPUT shaft assembly and 4699103057: OUTPUT flange, ensuring complete hydraulic circuit restoration.

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