ZF 0636.102.013 CAP SCREW for WG65 | OEM Genuine Part

Overview

The ZF 0636.102.013 CAP SCREW is a critical OEM genuine fastener engineered specifically for the WG 65 series transmission assembly. This precision-machined cap screw secures key internal components within the transmission housing, ensuring proper clamping force and alignment during high-torque operations. As an integral part of the drivetrain, the SKU 0636.102.013 works in conjunction with the TRANSMISSION HOUSING (4616101066) to maintain structural integrity under extreme loads. Without this cap screw, the transmission’s internal geometry would shift, leading to premature wear and operational instability.

Symptoms of Failure

• Transmission oil seepage at housing joints: A loose or fatigued cap screw allows the HOUSING (4616301307) to separate slightly, creating a path for ATF fluid to escape.
• Gear engagement hesitation or slipping: When the cap screw loses torque, the HOUSING (4616301309) shifts position, causing misalignment of clutch packs and planetary gears.
• Abnormal vibration during shifting: A broken or stripped cap screw permits micro-movement of the HEXAGON SCREW (0636011118) assembly, transmitting harmonics through the driveline.
• Increased metallic debris in oil pan: Friction from loose components accelerates wear on the cap screw threads and adjacent housing surfaces.

Technical Specifications

Compatibility

This cap screw is primarily designed for the ZF WG 65 series, but it also fits select models in the WG180 and WG200 families due to shared housing bolt patterns. It is commonly used alongside the HEXAGON SCREW (0636011118) for securing the TRANSMISSION HOUSING (4616101066). For optimal sealing, pair it with the O-RING (0634313118) and SEALING RING (0634801152). Always verify thread pitch against your specific transmission model before installation.

Related Components

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