ZF 0730.006.821 WASHER | OEM Genuine Part

Overview

The ZF 0730.006.821 WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearance and load distribution within heavy-duty construction machinery transmissions. This hardened steel washer sits between the transmission housing and rotating shaft assemblies, preventing metal-on-metal contact and ensuring consistent clamping force. The SKU 0730.006.821 is frequently replaced during overhauls of ZF power shift transmissions, particularly when paired with the 4108101068: HOUSING or the 4108201177: HOUSING to restore factory tolerances.

Symptoms of Failure

• Transmission oil leaks at the housing joint: A worn 0730.006.821 washer allows axial play, causing the 0636302056: SCREW PLUG seal surface to shift, leading to external fluid seepage.
• Gear engagement delay or slipping under load: When the washer thickness degrades, clutch pack clearance increases, resulting in delayed shifts and power loss during heavy excavation.
• Abnormal metallic rattling from the bell housing: Excessive end float from a collapsed washer permits gear train components to contact the 4108301304: BEARING COVER, producing a distinct chatter at idle.
• Elevated operating temperature: Insufficient washer height reduces lubrication flow paths, causing localized overheating in the planetary gear set.

Technical Specifications

Compatibility

This washer is a standard fitment in ZF WG180, WG200, and WG210 series transmissions commonly used in wheel loaders, excavators, and telehandlers. It also appears in select ZF 4WG-200 and 6WG-200 power shift units. Always verify clearance with the 4108306173: GASKET and 0750110040: SHAFT SEAL when rebuilding the output shaft assembly.

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