ZF 4699.298.020 REPAIR KIT | OEM Genuine Part

Overview

This ZF 4699.298.020 REPAIR KIT is an OEM genuine assembly designed to restore the sealing integrity and hydraulic performance within ZF heavy-duty powershift transmissions. The kit contains all necessary gaskets, seals, and O-rings required to overhaul the clutch pack or valve body interface. As a critical service component, it directly addresses fluid migration between internal circuits. The SKU 4699.298.020 is engineered to match factory tolerances, ensuring that when installed alongside the 4699101025 HOUSING, the assembly maintains correct pressure regulation. This repair kit is typically deployed during a major transmission rebuild to prevent premature wear of adjacent hard parts.

Symptoms of Failure

• External oil seepage at housing seams: When the seals in this kit degrade, hydraulic fluid escapes around the 4699102063 INPUT and 4699103062 OUTPUT flanges, leaving visible puddles under the machine.
• Erratic gear engagement or clutch slip: Worn O-rings cause internal pressure loss, leading to delayed shifts or slipping under load—a common symptom in WG180 and WG200 series transmissions.
• Contaminated transmission fluid with metallic debris: Failed seals allow clutch material to circulate, accelerating wear on the 4699004105 GK25 II gear set.
• Overheating during low-speed operation: Insufficient sealing reduces lubrication flow, causing localized hot spots in the clutch housing.

Technical Specifications

Compatibility

This repair kit is specifically engineered for ZF powershift transmissions used in construction machinery. Based on the part type and seal configuration, it is compatible with the following ZF models: WG180, WG200, WG210, and WG250 series. It also applies to certain ErgoPower and Ecolife variants where the clutch housing interface matches the 4699.298.020 gasket pattern. Always verify the existing housing bore dimensions before installation, particularly when mating with the 4699101025 HOUSING.

Related Components