ZF 0636.101.195 CAP SCREW for WG200 | OEM Genuine Part

Overview

The ZF 0636.101.195 CAP SCREW is a critical fastening component engineered specifically for the WG 200 Series transmission assembly. This OEM genuine part secures the TRANSMISSION HOUSING and internal clutch packs, ensuring precise clamping force under high-torque conditions. Positioned within the main gearcase, this cap screw prevents axial movement of rotating assemblies, directly influencing shift quality and drivetrain reliability. The SKU 0636.101.195 is manufactured to ZF’s exacting tolerances, making it a non-negotiable element for maintaining factory-specified bolt tension in heavy-duty applications.

Symptoms of Failure

• Transmission oil seepage at housing joints: A loose or fatigued cap screw compromises the seal between the TRANSMISSION HOUSING and cover plate, leading to visible fluid leaks around the bolt head.
• Audible rattling or knocking during gear engagement: Worn threads allow the cap screw to back out, causing internal components like the OUTPUT FLANGE to shift under load.
• Intermittent gear slipping under heavy load: Insufficient clamping force from a degraded cap screw reduces pressure on clutch packs, resulting in power loss during acceleration.
• Increased vibration at highway speeds: A failing cap screw destabilizes the DISCONNECTION assembly, transmitting harmonics through the driveline.

Technical Specifications

Compatibility

This cap screw is designed for the ZF WG 200 Series, including models WG180, WG200, and WG210. It also integrates with the HEXAGON SCREW used in adjacent housing bores. For retrofitting older WG160 units, verify thread pitch compatibility with the ADAPTER plate. Always pair with a new O-RING under the screw head to prevent fluid bypass.

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