ZF 0631.330.124 SPRING PIN for WG200 | OEM Genuine Part

Overview

The ZF 0631.330.124 SPRING PIN is a critical OEM genuine component engineered for the WG 200 Series transmission. This precision-machined pin serves as a locating and retention element within the shift mechanism, ensuring precise alignment of internal actuation assemblies. Specifically designed to absorb shear loads and maintain positional stability, the 0631.330.124 spring pin prevents unwanted movement between mating parts during high-torque operation. It is installed directly into the transmission housing or valve body, where it interacts with adjacent components such as the 4460165051 CONSOLE and 4460368311 CONSOLE to secure the shift rail assembly. As an OEM part, it meets ZF’s exacting tolerances for hardness and diameter, making it essential for maintaining factory-specified clearances in WG200 gearboxes.

Symptoms of Failure

• Erratic gear engagement or slipping: A worn or sheared spring pin allows shift forks to drift, causing delayed or incomplete gear changes under load.
• Unusual metallic rattling from transmission housing: Loose spring pins create play between the shift rail and console, producing a distinct clicking or rattling noise during acceleration.
• Oil contamination from internal debris: Fractured spring pin fragments circulate through the transmission fluid, leading to valve body scoring and reduced hydraulic pressure.
• Difficulty shifting into specific gears: Misalignment caused by a failed pin prevents the shift mechanism from fully engaging certain gear sets, often requiring multiple attempts to select reverse or high gear.

Technical Specifications

Compatibility

This spring pin is primarily designed for the ZF WG 200 Series transmissions, including models WG180, WG200, and WG210. It is also used in select variants of the Ecomat 4HP and 5HP series where identical shift rail geometries are employed. The pin directly interfaces with the 0636011429 HEXAGON SCREW and 0730100365 WASHER during assembly, ensuring the console remains securely fastened to the transmission casing. For WG200 rebuilds, always verify the pin’s chamfer orientation matches the original installation to prevent premature wear.

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