ZF 4699.305.056 SHIM RING | OEM Genuine Part

Overview

The ZF 4699.305.056 SHIM RING is a precision-engineered OEM genuine component designed for critical axial clearance adjustment within heavy-duty ZF transmissions used in construction machinery. This shim ring, identified by SKU 4699.305.056, sits between the transmission housing and the bearing assembly, ensuring correct preload and shaft alignment. By maintaining exact tolerances, it prevents internal component wear and supports the structural integrity of the gear train. This part is often replaced during a full transmission rebuild alongside the 4699101086 HOUSING and the 4699301223 HOUSING to restore factory specifications.

Symptoms of Failure

When the ZF 4699.305.056 shim ring wears or becomes deformed, operators may notice these specific failure symptoms:

• Excessive axial play in the output shaft – A loose shim ring allows the shaft to move laterally, causing driveline vibration and uneven gear wear.
• Oil leaks around the housing joint – Deterioration of the shim ring can compromise the seal interface, leading to transmission fluid seepage near the 0636302022 SCREW PLUG or 0501319149 SCREW PLUG.
• Gear slipping under load – Incorrect clearance from a worn shim ring reduces clutch pack engagement pressure, resulting in torque loss during heavy operation.
• Metallic grinding noises during shifting – Metal-to-metal contact occurs when the shim ring no longer maintains proper bearing preload.

Technical Specifications

Compatibility

This shim ring is engineered for use in ZF heavy-duty transmission models commonly found in wheel loaders, excavators, and graders. Based on its part number range and application, it is compatible with the following ZF transmissions:

• ZF WG180
• ZF WG200
• ZF WG211
• ZF 4WG-200
• ZF 5WG-180

Always verify fitment by cross-referencing your transmission serial number with the OEM parts catalog.

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