ZF 0730.009.852 SHIM | OEM Genuine Part

Overview

The ZF 0730.009.852 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within ZF heavy-duty powershift transmissions. Positioned between the transmission housing and bearing assemblies, this shim compensates for manufacturing tolerances and thermal expansion, ensuring correct gear mesh and load distribution. The SKU 0730.009.852 is commonly utilized in construction machinery transmissions, such as those found in wheel loaders and dozers, where it prevents component misalignment. Without this shim, internal gear sets cannot maintain their designed end-play, leading to premature wear on adjacent components like the 4699101018: HOUSING and the 4699301051: HOUSING.

Symptoms of Failure

When the ZF 0730.009.852 shim wears, cracks, or is omitted during rebuilds, several distinct failure modes emerge. First, you may notice excessive gear backlash and clunking noises during directional shifts, a common long-tail search query for “ZF transmission clunking when shifting.” Second, intermittent gear slipping under load occurs as axial play allows gear teeth to lose contact, often reported as “transmission slipping in forward gear.” Third, metal debris in the transmission oil filter indicates that the shim has fractured, allowing hardened particles to circulate. Fourth, oil leaks at the housing joint can develop if the shim’s failure misaligns the 4699301054: HOUSING COVER, compromising the seal surface.

Technical Specifications

Compatibility

This shim is a standard component in ZF’s WG series powershift transmissions, specifically the WG180, WG200, and WG250 models. It is also used in the 4WG-200 and 6WG-250 variants commonly installed in construction machinery from manufacturers like Liebherr, Caterpillar, and Volvo CE. The shim fits between the main shaft bearing and the 4699301055: COVER assembly. Always verify the stack height during rebuilds, as multiple shims may be required to achieve the specified 0.05–0.15 mm end-play.

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