ZF 0730.301.122 WASHER | OEM Genuine Part

Overview

The ZF 0730.301.122 WASHER is an OEM genuine shim component engineered for precise axial clearance control within heavy-duty construction machinery transmissions. This hardened steel washer sits between the main shaft assembly and the shift system components, ensuring correct preload and alignment during high-torque operations. As a critical wear part, the SKU 0730.301.122 maintains the integrity of the gear train by preventing metal-to-metal contact between rotating and stationary elements. When paired with a 2094104412: MAIN SHAFT or a 2094304054: MAIN SHAFT, this washer guarantees optimal load distribution across the planetary gear sets.

Symptoms of Failure

• Transmission oil leaks at shaft seals — A worn 0730.301.122 washer allows excessive axial play, causing seal lip deformation and fluid seepage around the main shaft housing.
• Gear slipping under load — When the washer thickness degrades, the 2094106010: SHIFT SYSTEM loses precise engagement depth, leading to intermittent power loss during excavation or grading operations.
• Abnormal metallic grinding noises — Insufficient washer clearance permits the 2094206001: GEARSHIFT SHAFT to contact adjacent gears, producing a distinct high-pitched whine during directional changes.
• Vibration in neutral or drive — A collapsed washer creates uneven preload on the shift fork assembly, transmitting harmonic vibrations through the transmission case at idle speeds.

Technical Specifications

Compatibility

This washer is designed for ZF WG180, WG200, and WG250 series transmissions commonly used in wheel loaders, excavators, and telehandlers. It also fits select ZF 4WG-200 and 6WG-200 models where the main shaft assembly requires a 2.5mm shim. Always verify clearance with a 2094306053: GEARSHIFT SHAFT during rebuilds to confirm proper stack height.

Related Components

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