ZF 0631.306.072 CYLINDRICAL PIN for WG65 | OEM Genuine Part

Overview

The ZF 0631.306.072 CYLINDRICAL PIN is a precision-engineered locating component designed for the WG65 and WG 200 Series transmissions. This OEM genuine part serves as a critical alignment dowel, ensuring exact positioning between the transmission housing and internal valve body assemblies. By maintaining strict tolerances, this cylindrical pin prevents lateral movement during high-torque operation. The SKU 0631.306.072 is manufactured from hardened alloy steel to withstand shear stresses in heavy-duty commercial vehicle applications. When paired with a properly torqued 0636011038: HEXAGON SCREW, this pin guarantees the structural integrity of the gear train assembly.

Symptoms of Failure

• Transmission housing misalignment: A worn or sheared 0631.306.072 pin causes the 4616101059: TRANSMISSION HOUSING to shift, leading to gear engagement noise during acceleration.
• Oil seepage at mating surfaces: When the cylindrical pin loses its interference fit, pressurized ATF can escape between housing joints, creating visible drips under the vehicle.
• Erratic shift timing: Pin failure allows valve body movement, disrupting hydraulic pressure regulation and causing delayed or harsh gear changes.
• Vibration during load cycles: A loose pin permits micro-movement between components, producing low-frequency vibration that worsens under heavy payloads.

Technical Specifications

Compatibility

This cylindrical pin is engineered for ZF WG-series transmissions, specifically the WG65 and WG 200 Series. It also applies to the WG180, WG210, and WG250 models where identical dowel pin locations are used for housing alignment. The 0631.306.072 is a direct replacement for OEM pins in ZF Ecomat and Ecolife variants that share the same housing architecture. Always verify the pin bore diameter in your specific 0636011118: HEXAGON SCREW mounting pattern before installation.

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