ZF 0636.010.224 HEXAGON SCREW for WG251 | OEM Genuine Part

Overview

The ZF 0636.010.224 HEXAGON SCREW is a critical fastening component engineered specifically for the WG 251 transmission series. This OEM genuine part secures key assemblies within the gearbox housing, ensuring structural integrity under high-torque loads. Positioned at the interface between the TRANSMISSION HOUSING and the HOUSING, this hexagon screw prevents relative movement and maintains precise alignment of internal components. The SKU 0636.010.224 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged fasteners in heavy-duty industrial transmissions.

Symptoms of Failure

• Oil seepage at housing joints: When the 0636.010.224 hexagon screw loses clamping force, transmission fluid can escape between the COVER and housing, leading to visible drips or wet spots on the exterior.
• Abnormal gear engagement noise: A loose or stripped screw allows micro-movement of the housing, producing a distinct metallic chatter during gear shifts or under load.
• Vibration in neutral or drive: Worn threads on this fastener cause uneven pressure distribution, resulting in noticeable drivetrain vibration that intensifies with RPM.
• Recurring fastener loosening: If the hexagon screw fails to maintain torque, you may find it repeatedly backing out, requiring frequent retightening during routine inspections.

Technical Specifications

Compatibility

This hexagon screw is primarily designed for the ZF WG 251 transmission series. Based on its thread pattern and head dimensions, it also fits the following ZF models: WG 180, WG 200, WG 210, and WG 250. It is commonly used in conjunction with the CAP SCREW for securing cover plates. Always verify thread pitch and length against your specific transmission variant before installation.

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