ZF 0730.104.727 WASHER for WG100 | OEM Genuine Part

Overview

The ZF 0730.104.727 WASHER is a precision-engineered OEM genuine component designed specifically for the WG 100 series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the TRANSMISSION HOUSING, ensuring even distribution of clamping forces during high-torque operation. Positioned within the main gear train assembly, this washer prevents galling and maintains proper axial clearance between rotating elements. The SKU 0730.104.727 is manufactured to ZF’s exacting tolerances, guaranteeing a service life that matches the transmission’s overhaul interval.

Symptoms of Failure

• Transmission oil seepage at housing joints: A worn 0730.104.727 washer can cause uneven bolt tension, leading to micro-gaps between the HOUSING and mating surfaces, resulting in slow oil weeping.
• Audible metallic clicking during gear engagement: When the washer collapses beyond its elastic limit, axial play develops, causing gear clash under load.
• Gradual gear slipping under heavy load: Insufficient washer thickness reduces clamping force on the O-RING seals, allowing internal pressure loss and clutch pack slippage.
• Vibration at specific RPM ranges: A deformed washer creates harmonic imbalance in the rotating assembly, transmitting vibration through the HOUSING.

Technical Specifications

Compatibility

This washer is engineered for the ZF WG 100 series transmission family. Based on its dimensional profile and load rating, the 0730.104.727 is also compatible with the following ZF models: WG 120, WG 150, WG 180, and WG 200. It is commonly used in the main shaft bearing preload stack and the planetary carrier bolt pattern. Always verify fitment against your transmission’s parts catalog, as some early WG 80 variants may require a different thickness.

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