ZF 0730.105.980 WASHER for WG100 | OEM Genuine Part

Overview

The ZF 0730.105.980 WASHER is a precision-engineered OEM genuine component designed exclusively for the WG 100 Series transmission family. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing assembly, ensuring proper clamping force distribution during high-torque operations. Positioned internally within the gear train or externally on mounting points, part number 0730.105.980 prevents galling and maintains axial alignment under extreme thermal and mechanical stress. As a factory-specification part, it guarantees exact dimensional tolerances required for long-term reliability in heavy-duty industrial applications.

Symptoms of Failure

• Transmission oil seepage at housing joints: A worn or crushed 0730.105.980 washer can compromise seal compression, leading to slow fluid loss around the TRANSMISSION HOUSING interface.
• Audible metallic rattling under load: When the washer loses its original thickness, fastener preload decreases, allowing the HOUSING components to vibrate against each other.
• Intermittent gear engagement hesitation: Insufficient washer support can cause micro-movement in the HOUSING assembly, altering gear mesh clearances and producing delayed shift response.
• Visible deformation or cracking: Over-torqued or fatigued washers may exhibit edge fractures, detectable during routine transmission disassembly inspections.

Technical Specifications

Compatibility

This OEM washer is engineered primarily for the ZF WG 100 Series, including models WG100, WG120, and WG150. It also serves as a direct replacement in select WG180 and WG200 transmissions where identical fastener patterns exist. The 0730.105.980 washer is frequently replaced alongside the O-RING during seal renewal procedures to prevent fluid bypass at critical sealing points. Always verify part dimensions against your specific transmission housing configuration before installation.

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