ZF 0730.063.423 RING | OEM Genuine Part

Overview

The ZF 0730.063.423 RING is a precision-engineered OEM genuine component designed to maintain critical sealing and alignment within heavy-duty construction machinery transmissions. This ring sits specifically within the clutch drum or planetary gear assembly, where it acts as a load-bearing and sealing interface to prevent fluid bypass between rotating and stationary elements. The SKU 0730.063.423 is manufactured to ZF’s exacting tolerances, ensuring consistent hydraulic pressure and torque transfer in demanding off-highway applications. When installed alongside the 4143101009 HOUSING and the 4143301025 HOUSING, this ring forms a leak-proof barrier that is essential for transmission longevity.

Symptoms of Failure

• Hydraulic pressure loss during gear engagement: A worn 0730.063.423 ring allows pressurized oil to escape, causing delayed or harsh shifting in wheel loaders and excavators.
• Visible oil seepage around the clutch housing: When the ring loses its dimensional integrity, transmission fluid may leak past the 0634313603 O-RING and the 4475280018 SCREW PLUG, leaving puddles under the machine.
• Erratic torque converter lockup: A degraded ring disrupts the balance of hydraulic circuits, leading to shuddering or slipping during load cycles.
• Overheating transmission fluid: Internal leakage caused by ring failure increases friction and heat generation, often triggering thermal warnings on the dashboard.

Technical Specifications

Compatibility

This ring is engineered for ZF WG series transmissions commonly used in construction machinery, including the WG180, WG200, and WG210 models. It is also compatible with the ZF 4WG-200 and 6WG-200 variants found in telescopic handlers and compact loaders. For proper installation, always pair this ring with a new 0634313591 O-RING and verify the 4143298457 SEAL KIT condition. The 0501342341 SUPPORT RING may also be required for certain drum assemblies.

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