ZF 4663.298.002 REPAIR KIT | OEM Genuine Part

Overview

The ZF 4663.298.002 REPAIR KIT (SKU: 4663.298.002) is an OEM genuine service assembly designed to restore internal sealing and pressure integrity in heavy-duty ZF powershift transmissions. This kit contains all necessary gaskets, seals, and wear components required to overhaul the clutch pack or valve body section. It is a critical maintenance item for construction machinery such as wheel loaders, dozers, and graders. When installed, this kit works directly with the 4663101001: HOUSING to prevent cross-contamination of hydraulic circuits and ensures proper alignment with the 4663301025: COVER.

Symptoms of Failure

• External oil seepage at housing joints: Worn seals inside the repair kit cause visible hydraulic fluid leaks around the transmission casing, particularly near the 0631306816: CYLINDRICAL PIN locations.
• Delayed or harsh gear engagement: Loss of internal pressure due to degraded O-rings results in sluggish shifting or sudden clunks when selecting forward or reverse.
• Transmission overheating: Internal leakage forces the pump to work harder, generating excess heat and reducing overall efficiency.
• Contaminated transmission fluid: Failed seals allow debris to enter the hydraulic circuit, often visible as metallic particles in the oil filter.

Technical Specifications

Compatibility

This repair kit is engineered for ZF WG series transmissions commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG211 models. It also applies to select ZF 4WG-200 and ZF 6WG-250 variants found in articulated dump trucks and crawlers. Always verify your transmission serial number before ordering.

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