ZF 0630.004.202 SHIM RING for WG200 | OEM Genuine Part

Overview

The ZF 0630.004.202 SHIM RING is a precision-engineered spacer component designed for the WG 200 series of heavy-duty transmissions. This OEM genuine part plays a critical role in establishing the correct axial clearance and preload within the planetary gearset assembly. By occupying a specific gap between rotating and stationary components, the shim ring ensures that bearings and gears maintain their optimal alignment under load. The SKU 0630.004.202 is a factory-specified wear item that must be replaced during any major overhaul to prevent premature failure of adjacent drivetrain elements. It is frequently installed alongside the 4460115043: HOUSING and the 4469315012: AXLE DRIVE HOUSING to maintain structural integrity.

Symptoms of Failure

When the ZF 0630.004.202 shim ring wears or deforms, operators may notice distinct operational issues. Excessive axial play in the output shaft is a primary indicator, often felt as a clunking sensation during gear engagement. Premature tapered roller bearing failure occurs because incorrect shim thickness alters bearing preload, leading to overheating and spalling. Oil leaks at the housing interface can develop if the shim ring compresses unevenly, distorting the seal surface. Finally, intermittent gear slipping under heavy torque may arise as the planetary gears lose their precise alignment, causing erratic power delivery.

Technical Specifications

Compatibility

This shim ring is engineered specifically for the ZF WG 200 series transmissions, including the WG180, WG200, and WG210 variants. It is also applicable to certain WG 150 series units that share the same planetary carrier architecture. The part interfaces directly with the 0750117406: TAPER ROLLER BEARING and the 0750117802: TAPERED ROLLER BEARING to establish correct end-play. Always verify your transmission serial number against ZF parts catalogs before ordering.

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