ZF 0730.002.627 WASHER for WG65 | OEM Genuine Part

Overview

The ZF 0730.002.627 WASHER is an OEM genuine shim component engineered specifically for the WG 65 Series transmission. This precision-machined washer sits between the TRANSMISSION HOUSING and the planetary gear assembly, where it controls axial clearance and maintains correct bearing preload. As a factory-specification part, the SKU 0730.002.627 ensures exacting tolerances that aftermarket alternatives cannot replicate, directly influencing gear mesh alignment and overall drivetrain longevity.

Symptoms of Failure

• Oil leaks from housing joint — A worn or crushed 0730.002.627 washer allows the transmission housing to shift, breaking the seal and causing fluid seepage around the mating flange.
• Gear slipping under load — When this washer loses its calibrated thickness, planetary gear end-play increases, leading to intermittent power loss and harsh engagement during acceleration.
• Abnormal whining noise in neutral — Insufficient washer height creates metal-on-metal contact between the housing and rotating components, producing a high-pitched whine that intensifies with RPM.
• Premature bearing failure — Without proper shim support, the HEXAGON SCREW fasteners cannot maintain consistent clamping force, accelerating wear on adjacent roller bearings.

Technical Specifications

Compatibility

While the 0730.002.627 is primarily cataloged for the WG 65 Series, its dimensional profile also suits the WG 80, WG 120, and WG 180 transmissions where axial shimming is required between the housing and sun gear carrier. For WG 200 and WG 250 models, verify housing bore dimensions before installation. This washer is frequently replaced alongside the HEXAGON SCREW and HEXAGON SCREW during full transmission overhauls to ensure uniform clamping torque.

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