ZF 0630.004.045 SHIM RING for WG201 | OEM Genuine Part

Overview

The ZF 0630.004.045 SHIM RING is a precision-engineered spacer component designed for the WG 201 series transmissions. This OEM genuine part serves a critical role in establishing the correct axial clearance between rotating assemblies and stationary housing sections within the gearbox. By maintaining precise end-play tolerances, the shim ring prevents gear clash and ensures smooth power flow through the drivetrain. The SKU 0630.004.045 is manufactured to ZF’s original factory specifications, guaranteeing a perfect fit when paired with the 4644101160: TRANSMISSION HOUSING or the 4644301323: TRANSMISSION HOUSING.

Symptoms of Failure

When the ZF 0630.004.045 shim ring wears beyond tolerance, operators may notice several distinct failure modes. Transmission oil leaks at the housing joint often develop as the ring compresses unevenly, allowing fluid to escape past the gasket surface. Gear slipping under load becomes apparent when axial play exceeds 0.15 mm, causing intermittent disengagement of clutch packs. Abnormal whining or grinding noises during gear changes indicate that the shim ring can no longer maintain proper bearing preload. Delayed engagement when shifting from neutral to drive is another common complaint, as the worn ring allows the input shaft to drift out of alignment.

Technical Specifications

Compatibility

This shim ring is primarily specified for the ZF WG 201 series transmissions, including the WG180, WG200, and WG210 variants. It is also compatible with select ZF Ecomat models that share the same planetary gearset architecture. The ring seats between the 4644301189: THREADED BUSH and the output shaft bearing race. For proper sealing, always install a new 4475280043: SCREW PLUG during reassembly to prevent contamination ingress.

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