ZF 0630.004.019 SHIM RING for WG100/WG201 | OEM Genuine Part

Overview

The ZF 0630.004.019 SHIM RING is a precision-engineered adjustment component designed for the WG 100 and WG 201 series transmissions. This OEM genuine part functions as a critical spacer within the planetary gearset assembly, ensuring correct axial clearance and preload between rotating elements. Positioned between the transmission housing and the clutch drum, the shim ring compensates for manufacturing tolerances and thermal expansion, maintaining optimal gear mesh alignment. The SKU 0630.004.019 is manufactured to ZF’s exacting specifications, guaranteeing a factory-spec fit that prevents internal component interference during high-torque operations.

Symptoms of Failure

When the ZF 0630.004.019 shim ring wears or deforms, operators often report transmission gear slipping under load, particularly during uphill climbs or heavy hauling. A second common indicator is abnormal low-frequency vibration from the transmission housing, which intensifies at highway speeds. Technicians may also detect intermittent hard shifting between 2nd and 3rd gears as the clearance changes affect clutch pack engagement. In severe cases, metal debris in the transmission fluid filter signals that the shim ring has fractured, requiring immediate replacement to avoid damage to the TRANSMISSION HOUSING.

Technical Specifications

Compatibility

This shim ring is specifically engineered for ZF WG-series transmissions, including the WG 100, WG 101, WG 180, and WG 200 models. It also fits the WG 201 series where the planetary carrier assembly requires precise axial shimming. The part is not interchangeable with earlier ZF 4HP or 5HP automatic transmissions. When replacing this component, always inspect the mating TRANSMISSION HOUSING for wear marks, and verify the THREADED BUSH torque specifications to prevent over-compression of the shim ring.

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