ZF 0730.108.397 SHIM | OEM Genuine Part

Overview

The ZF 0730.108.397 SHIM is a precision-engineered OEM genuine component designed to establish exact axial clearances within heavy-duty construction machinery transmissions. This thin, hardened steel spacer sits between planetary gear sets and bearing races, ensuring that preload tolerances remain within factory specifications. The SKU 0730.108.397 is critical for maintaining proper gear mesh alignment and preventing unwanted axial movement that can lead to premature wear. In a ZF transmission assembly, this shim directly supports the load path of the 5838109007: DIFFERENTIAL by stabilizing the differential housing against lateral forces during high-torque operations.

Symptoms of Failure

• Transmission oil leaks at the differential housing seam – When the 0730.108.397 shim compresses or cracks, the seal gap widens, causing fluid seepage around the 0750117075: TAPER ROLLER BEARING mounting area.
• Intermittent gear slipping under load – Worn shim thickness reduces bearing preload, allowing the 2095209019: DIFFERENTIAL to shift axially, resulting in momentary power loss during excavation or grading.
• Metallic grinding noise from the planetary section – Excessive end-play caused by a collapsed shim allows gear teeth to contact housing walls, producing a distinct scraping sound at low RPM.
• Vibration through the driveline during acceleration – Uneven shim wear creates misalignment between the differential and output shaft, transmitting harsh harmonics through the chassis.

Technical Specifications

Compatibility

This shim is engineered for ZF WG series powershift transmissions commonly found in wheel loaders, graders, and excavators. It is a direct fit for the WG180, WG200, and WG250 models, where it regulates end-play in the differential carrier assembly. The 0730.108.397 also applies to select ERGOpower and Ecomix drivelines used in concrete mixer trucks. When replacing this shim, always inspect the mating 0631329086: SPRING PIN for wear, as a worn pin can cause the shim to shift out of position during reassembly.

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