ZF 0730.501.672 RETAINING RING for WG94 | OEM Genuine Part

Overview

The ZF 0730.501.672 RETAINING RING is a critical OEM genuine component engineered specifically for the WG 94 Series transmission. This precision-formed ring functions as a positive axial lock, securing internal gear sets, bearings, and shafts within their designated bores. Positioned directly inside the main gear housing, the retaining ring prevents lateral movement of rotating assemblies under high torque loads. The SKU 0730.501.672 is manufactured to ZF’s exacting tolerances, ensuring a snap-fit engagement that maintains structural integrity during heavy-duty industrial operations. When installed alongside the 4661101037: TRANSMISSION HOUSING, this ring provides the necessary clamping force to keep the drivetrain components properly aligned.

Symptoms of Failure

When the ZF 0730.501.672 retaining ring fatigues or breaks, operators will notice distinct mechanical distress. “Transmission gear slipping under load” is a primary indicator, as the ring can no longer hold the gear cluster in its correct axial position. “Metallic grinding noise from the WG94 housing” often accompanies this failure, caused by gear teeth contacting the 4661301099: HOUSING II. Another common symptom is “intermittent loss of drive in forward gears”, resulting from the ring dislodging and allowing the shaft to walk. Finally, “visible metal debris in the transmission oil pan” signals that the ring has fractured, sending fragments through the lubrication system.

Technical Specifications

Compatibility

This retaining ring is designed for the ZF WG 94 Series and its direct derivatives. It is a direct fit for the WG94, WG180, and WG200 transmission models used in off-highway trucks, wheel loaders, and heavy-duty construction equipment. The ring seats into a machined groove inside the 4661101037: TRANSMISSION HOUSING and works in conjunction with the 0631306174: CYLINDRICAL PIN to prevent rotation of the ring itself. Always verify the groove condition in your specific housing before installation. For identification purposes, the 0769123894: TYPE PLATE on your transmission will confirm the exact series variant.

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