ZF 2074.311.050 PIN for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 2074.311.050 PIN is a precision-machined locating and alignment component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part ensures correct positional tolerances within the shift mechanism and clutch assembly, preventing axial movement that could compromise gear engagement. The SKU 2074.311.050 is manufactured from high-strength alloy steel to withstand cyclic shear loads encountered during heavy-duty commercial operations. It interfaces directly with the TRANSMISSION HOUSING and the HOUSING to maintain structural integrity under torque.

Symptoms of Failure

• Erratic gear engagement or “slipping” under load — A worn 2074.311.050 pin allows lateral play in the shift fork, causing incomplete clutch pack compression. This manifests as a delayed or grinding shift, particularly in lower gears.
• Metallic rattling from the bell housing area — When the pin fractures or deforms, loose metal fragments can rattle inside the HOUSING, producing a distinct noise at idle or during deceleration.
• Oil seepage around the shift shaft bore — A misaligned pin distorts the sealing surface of the COVER, allowing transmission fluid to bypass the shaft seal. Look for wet spots near the shift tower.
• Hard shifting or stuck selector — Progressive wear causes the pin to bind against the detent mechanism, requiring excessive force to move the shift lever.

Technical Specifications

Compatibility

This pin is specifically validated for ZF WG100, WG130, and WG131 series transmissions used in medium-duty trucks, buses, and off-highway equipment. It also fits select WG180 and WG200 variants where the shift mechanism shares the same bore pattern. Always cross-reference your transmission serial number with the GASKET and O-RING kit to confirm compatibility. For complete assembly, pair this pin with the SHAFT SEAL and CYLINDRICAL PIN to prevent premature wear.

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