ZF 0630.004.083 SHIM RING for WG100/WG201 | OEM Genuine Part

Overview

The ZF 0630.004.083 SHIM RING is a precision-engineered spacer component designed for the WG 100 and WG 201 transmission series. This OEM genuine part, identified by SKU 0630.004.083, sits between the transmission housing and the output flange assembly, where it establishes critical axial clearance and preload. By maintaining exact tolerances, the shim ring ensures that rotating elements remain properly aligned, preventing metal-to-metal contact that could lead to premature wear. This component is often replaced during a full rebuild alongside the 4644101160: TRANSMISSION HOUSING or the 4644301323: TRANSMISSION HOUSING to restore factory-spec geometry.

Symptoms of Failure

When the ZF 0630.004.083 shim ring degrades or becomes compressed beyond tolerance, operators may notice several distinct failure modes. Oil seepage at the output flange is a common indicator, as the compromised shim ring allows lubricant to bypass the seal. Audible gear rattle or vibration during deceleration signals that axial play has increased beyond acceptable limits. Erratic shifting or delayed engagement can occur when the shim ring’s wear alters the load path through the planetary set. Finally, metal debris in the transmission fluid often accompanies shim ring failure, as the spacer begins to shed material under stress.

Technical Specifications

Compatibility

This shim ring is engineered for ZF WG-series transmissions, specifically the WG 100 and WG 201 families. It is also compatible with the WG 180, WG 200, and WG 210 variants when used in the output flange position. The part interfaces directly with the 4644301189: THREADED BUSH and the 4475280043: SCREW PLUG in the same assembly. For a complete seal, always pair this shim ring with a new 0634306198: O-RING during installation.

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