ZF 0730.006.871 SHIM | OEM Genuine Part

Overview

The ZF 0730.006.871 SHIM is a precision-engineered OEM genuine part designed to establish the correct axial clearance and preload within heavy-duty ZF transmissions. This thin, hardened steel shim sits between the transmission housing and bearing races, compensating for manufacturing tolerances to ensure optimal gear mesh and shaft alignment. The SKU 0730.006.871 is critical for maintaining the structural integrity of the gear train, preventing excessive end-play that can lead to premature component wear. When installed alongside a new TRANSMISSION HOUSING, this shim guarantees that rotating assemblies remain securely positioned under high torque loads.

Symptoms of Failure

• Transmission gear slipping under load: A worn or collapsed shim allows the shaft to shift axially, causing gears to lose proper engagement and slip during operation.
• Abnormal bearing noise or vibration: When the shim thickness degrades, bearings lose their preload, resulting in a distinct rumbling or knocking sound from the transmission housing.
• Oil leaks at housing joints: Excessive axial movement can distort the HOUSING seal surfaces, leading to fluid seepage around gaskets and seals.
• Hard shifting or gear clash: Incorrect clearance caused by a failed shim alters the synchronizer timing, making gear changes difficult or producing grinding noises.

Technical Specifications

Compatibility

This shim is specifically engineered for ZF WG-series powershift transmissions commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG211 models, where it is installed on the output shaft bearing cluster. The part also applies to the WG120 and WG150 series when used with a SCREW PLUG for oil gallery sealing. Always verify the shim stack height using an OIL LEVEL GAGE during reassembly to confirm correct clearance.

Related Components