ZF 0730.002.746 WASHER | OEM Genuine Part

Overview

The ZF 0730.002.746 WASHER is an OEM genuine precision shim engineered for critical axial clearance control within ZF heavy-duty transmission assemblies. This hardened steel washer sits between the planetary gear set and the TRANSMISSION HOUSING, ensuring correct end-play tolerances during high-torque operation. As a factory-specified component, the SKU 0730.002.746 directly replaces worn or missing washers to prevent internal gear clash and maintain hydraulic pressure integrity. Its specific thickness and surface finish are calibrated to match the exact stack-up requirements of construction machinery transmissions, making it a non-negotiable element during rebuilds.

Symptoms of Failure

• Transmission oil leaks at housing seam: A worn 0730.002.746 washer allows the planetary carrier to shift, distorting the seal between the HOUSING and the main case, leading to external fluid seepage.
• Gear slipping under load: When this washer loses its original thickness, axial play increases, causing clutch pack clearance to exceed specifications and resulting in intermittent power loss during grading or lifting operations.
• Abnormal metallic grinding noise: Excessive end-play from a collapsed washer permits gear teeth to contact the HOUSING interior, producing a distinct low-frequency grinding sound during deceleration.
• Hard shifting or delayed engagement: Incorrect washer stack height alters valve body alignment, creating hesitation when shifting between forward and reverse in ZF powershift transmissions.

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 variants where the planetary carrier interfaces with the COVER assembly. Always verify stack height requirements against your transmission’s service manual, as multiple washer thicknesses may be used in combination.

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