ZF 0636.015.125 HEXAGON SCREW for WG150 | OEM Genuine Part

Overview

The ZF 0636.015.125 HEXAGON SCREW is a critical fastening component engineered specifically for the WG150 transmission series. This OEM genuine part secures key internal assemblies within the gearbox, ensuring precise clamping force and structural integrity under high-torque conditions. As a hexagon-headed bolt, it is typically installed to anchor the TRANSMISSION HOUSING or TRANSMISSION HOUSING sections, preventing relative movement between mated surfaces. The SKU 0636.015.125 is manufactured to ZF’s original specifications, guaranteeing exact thread pitch, hardness, and corrosion resistance for long service life in heavy-duty industrial applications.

Symptoms of Failure

• Oil seepage at housing joints: A loose or fatigued hexagon screw can cause micro-gaps between the TRANSMISSION HOUSING and adjacent components, leading to gradual transmission fluid leaks.
• Abnormal gear engagement noise: When the 0636.015.125 loses preload, internal clearances shift, producing a distinct clunking or whining sound during gear changes.
• Vibration under load: Worn threads or a stripped hex head reduce clamping force, allowing the TRANSMISSION HOUSING to vibrate against mating parts, especially during torque peaks.
• Intermittent gear slipping: In severe cases, insufficient screw tension can misalign shift forks, causing temporary loss of drive in specific gears.

Technical Specifications

Compatibility

This hexagon screw is primarily designed for the ZF WG150 transmission series. Based on its thread pattern and length, it is also compatible with the WG180 and WG200 models where similar housing clamping points exist. For exact fitment, always verify against the original part number 0636.015.125. The screw works in conjunction with the TYPE PLATE for identification and the GROOVED STUD for alignment during assembly.

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