ZF 0636.021.059 HEXAGON SCREW for WG200 | OEM Genuine Part

Overview

The ZF 0636.021.059 HEXAGON SCREW is a critical OEM genuine fastening component engineered specifically for the WG200 series transmission. This hexagon screw secures key internal assemblies, ensuring precise clamping force within the gearbox housing. As an original ZF part, SKU 0636.021.059 guarantees exact metallurgical composition and thread tolerance, preventing loosening under high-torque conditions. It is typically installed in the valve body or clutch pack retention area, where vibration resistance is paramount for long-term drivetrain reliability.

Symptoms of Failure

• Transmission fluid seepage at housing joints: A worn or stripped 0636.021.059 hexagon screw can compromise the seal between the transmission case and the 4460165051: CONSOLE, leading to visible oil drips after operation.
• Intermittent gear engagement hesitation: When this fastener loses its clamping integrity, internal components shift slightly, causing delayed or rough shifting during acceleration.
• Abnormal metallic rattling from the bell housing: Loose fasteners allow the 4460368311: CONSOLE to vibrate against the transmission casing, producing a distinct noise under load.
• Torque converter shudder: Insufficient bolt tension can misalign the pump drive, resulting in a shudder sensation at highway speeds.

Technical Specifications

Compatibility

This hexagon screw is primarily designed for the ZF WG200 series transmissions, including models WG180, WG200, and WG210. It is also compatible with select ZF Ecolife and AS Tronic variants that share the same bolt pattern for the 0636011429: HEXAGON SCREW mounting points. Always verify thread pitch and length against your specific transmission housing when replacing the 0730100365: WASHER assembly.

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