ZF 0636.016.017 HEXAGON SCREW for WG65 | OEM Genuine Part

Overview

The ZF 0636.016.017 HEXAGON SCREW is a critical fastening component engineered specifically for the WG 65 series transmission assembly. This OEM genuine part secures the transmission housing and internal valve body sections, ensuring precise clamping force to maintain hydraulic pressure integrity. As a hexagon-headed bolt, it withstands high torque loads and thermal cycling common in heavy-duty industrial transmissions. The SKU 0636.016.017 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or stripped fasteners in your WG65 gearbox.

Symptoms of Failure

• Transmission fluid seepage around bolt heads: When the 0636.016.017 hexagon screw loses its thread grip, oil can migrate past the sealing surface, leaving visible wet spots on the housing exterior.
• Abnormal gear engagement noise: A loose hexagon screw allows micro-movement between the TRANSMISSION HOUSING and valve body, producing a distinct clatter during gear shifts under load.
• Intermittent pressure loss in hydraulic circuits: A fatigued screw cannot maintain the required clamping force, leading to erratic clutch pack application and delayed engagement.
• Visible thread galling or corrosion: Over-torqued or aged screws exhibit stripped threads, making removal difficult and compromising future serviceability.

Technical Specifications

Compatibility

This hexagon screw is primarily designed for the ZF WG 65 series transmissions, including models such as WG65, WG80, and WG100. It is also commonly used in the WG120 and WG150 variants where identical thread pitch and length specifications apply. For adjacent assemblies, consider the HEXAGON SCREW (0636011038) for smaller fastening points, or the HEXAGON SCREW (0636011118) for longer reach applications. The HEXAGON SCREW (0636016015) is another alternative for high-stress mounting points on the same housing.

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