ZF 0730.109.187 SHIM | OEM Genuine Part

Overview

The ZF 0730.109.187 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within heavy-duty ZF transmissions used in construction machinery. This thin, hardened steel shim sits between the transmission housing and bearing assemblies, compensating for manufacturing tolerances and ensuring correct preload on rotating components. The SKU 0730.109.187 is specifically calibrated to maintain optimal gear mesh alignment and bearing support, directly influencing torque transfer efficiency. When installed alongside the 4108101127 HOUSING and 4108201277 HOUSING, this shim prevents axial play that can lead to premature wear of internal planetary sets.

Symptoms of Failure

• Transmission oil leaks at housing joints: A worn or crushed 0730.109.187 shim allows the 4108306173 GASKET to lose compression, creating seepage paths between the bearing cover and housing.
• Gear slipping under load in construction equipment: Incorrect shim thickness reduces bearing preload, causing the 4108301304 BEARING COVER to shift and interrupt power flow to the output shaft.
• Abnormal whining or grinding noises during shifting: Excessive axial movement from a degraded shim forces gear teeth to contact unevenly, generating metallic debris in the oil pan.
• Vibration in the driveline at low RPM: Loss of shim integrity allows the input shaft to oscillate, stressing the 4108102055 INPUT assembly and accelerating bearing failure.

Technical Specifications

Compatibility

This shim is engineered for ZF WG series transmissions commonly found in wheel loaders, excavators, and telehandlers. It is directly compatible with the following ZF models: WG180, WG200, WG210, and WG220. The 0730.109.187 is also used in select ZF 4WG-200 and ZF 5WG-210 variants where precise axial adjustment of the 4108302191 PLANET CARRIER is required. Always verify the shim stack height against the 4108302007 BEARINGSHEET specifications during rebuilds.

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