ZF 0630.004.263 SHIM RING | OEM Genuine Part

Overview

The ZF 0630.004.263 SHIM RING is a precision-engineered OEM genuine component designed for critical axial clearance adjustment within heavy-duty ZF transmissions. This hardened steel ring sits between the planetary gear set and the housing assembly, ensuring correct end-play tolerances for the rotating elements. As a factory-specified shim, the SKU 0630.004.263 directly controls gear mesh depth and bearing preload, preventing premature wear in construction machinery drivelines. When paired with a new 4108101057 HOUSING or a replacement 4108201177 HOUSING, this shim ring guarantees the exact stack height required for optimal transmission performance.

Symptoms of Failure

• Transmission oil leaks at the housing joint: A worn or collapsed shim ring allows the housing face to shift, breaking the seal between the 4108301304 BEARING COVER and the main case, leading to external fluid seepage.
• Gear slipping under load: Incorrect shim thickness reduces clutch pack clamping force, causing intermittent power loss during excavation or grading operations.
• Abnormal whining or grinding noise: Excessive axial play from a fatigued shim ring allows gear teeth to misalign, generating metallic contact sounds at specific RPM ranges.
• Vibration in the driveline: Worn shim rings permit the output shaft to wobble, transmitting harsh vibrations through the chassis during forward/reverse shifts.

Technical Specifications

Compatibility

This shim ring is engineered for ZF WG series powershift transmissions commonly found in wheel loaders, graders, and telehandlers. Based on its dimensional profile, the 0630.004.263 is compatible with the following ZF models: WG180, WG200, WG210, and WG240. It is also used in select 4WG-200 and 4WG-210 variants. Always verify the existing shim stack thickness before installation; a new 0636302056 SCREW PLUG should be torqued to spec after reassembly to prevent fluid bypass.

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