ZF 0730.008.794 SHIM | OEM Genuine Part

Overview

The ZF 0730.008.794 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within ZF heavy-duty transmission assemblies. This thin, hardened steel component sits between the transmission housing and bearing races or gear faces, ensuring correct preload and alignment during operation. As a factory-original shim, the SKU 0730.008.794 eliminates guesswork in transmission rebuilds by providing exact thickness tolerances required for smooth power flow. It is commonly installed during overhaul procedures alongside the 2094101012: TRANSMISSION HOUSING to compensate for wear in mating surfaces. Without this shim, gear mesh patterns shift, leading to premature component fatigue in construction machinery drivelines.

Symptoms of Failure

• Excessive axial play in output shaft – When the 0730.008.794 shim compresses or corrodes, you may detect noticeable end float in the main shaft during inspection, causing inconsistent clutch engagement.
• Low-frequency gear whine under load – Worn shim thickness alters gear backlash, producing a distinct humming noise that intensifies when the machine pushes heavy material.
• Oil contamination from housing misalignment – A collapsed shim allows the 2094301036: HOUSING to shift, breaking the seal path and allowing debris into the hydraulic circuit.
• Intermittent gear slipping in forward ranges – Incorrect shim stack height reduces clutch pack clamping force, leading to power loss during acceleration in construction equipment.

Technical Specifications

Compatibility

This shim is engineered for ZF powershift transmissions commonly found in wheel loaders, graders, and excavators. It directly fits the WG180, WG200, and WG210 series gearboxes. The 0730.008.794 also appears in certain 4WG-200 and 6WG-200 variants used by OEMs like Liebherr and Volvo CE. For proper installation, always pair this shim with a new 2094298057: HOUSING gasket surface and verify clearance using the 2094301071: COVER alignment dowels. Do not reuse shims after disassembly, as work-hardening alters their crush characteristics.

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