ZF 0730.108.398 SHIM | OEM Genuine Part

Overview

The ZF 0730.108.398 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within heavy-duty ZF powershift transmissions. This thin, hardened steel shim sits between the differential housing and bearing races, ensuring correct preload and alignment of rotating assemblies. The SKU 0730.108.398 is specifically calibrated for use in construction machinery transmissions, where even micron-level tolerances dictate operational reliability. By compensating for manufacturing tolerances, this shim prevents excessive end-play that can lead to premature wear on adjacent components such as the 5838109007 DIFFERENTIAL and the 0750117075 TAPER ROLLER BEARING.

Symptoms of Failure

When the ZF 0730.108.398 shim collapses, corrodes, or is omitted during rebuild, the following failure modes emerge:

• Axial play in the differential carrier – A distinct clunking noise when shifting between forward and reverse, indicating lost preload on the 2095209019 DIFFERENTIAL assembly.
• Premature taper roller bearing failure – Excessive clearance allows the 0750117075 TAPER ROLLER BEARING to skid, generating metallic debris in the oil.
• Oil seepage at the axle housing seal – Worn shims alter the bearing stack height, causing seal lip misalignment and gradual fluid loss.
• Intermittent gear engagement hesitation – Lost shim thickness reduces clutch pack clamping force, mimicking hydraulic pressure faults.

Technical Specifications

Compatibility

This shim is dimensionally validated for use in the following ZF transmission models commonly found in construction machinery:

• ZF WG180 (all variants)
• ZF WG200 (series 2 and 3)
• ZF WG210 (early production)
• ZF 4WG-200 (torque converter models)

Always verify stack height with a dial indicator when replacing the 0631329086 SPRING PIN or differential components.

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