ZF 4646.354.029 FIXING PLATE for WG250 | OEM Genuine Part

Overview

The ZF 4646.354.029 FIXING PLATE is a critical retention component engineered specifically for the WG250 series transmission. This OEM genuine part ensures precise alignment and secure mounting of internal assemblies within the gearbox housing. Positioned between the TRANSMISSION HOUSING and the HOUSING, the fixing plate prevents axial movement of shafts and gear sets under high-torque loads. The SKU 4646.354.029 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit without modification. This plate works in concert with the COVER and CONNECTING PART to maintain structural integrity during heavy-duty operations.

Symptoms of Failure

When the ZF 4646.354.029 fixing plate wears or cracks, operators may notice these specific failure indicators:

• Oil seepage around the WG250 housing interface – A compromised fixing plate allows lubricant to escape past the gasket, leading to gradual fluid loss and potential overheating.
• Abnormal gear rattle or clunking during load shifts – Worn plate tolerances permit excessive axial play, causing misalignment between the TRANSMISSION HOUSING and internal planetary sets.
• Vibration at highway speeds (45-65 mph) – A loose fixing plate destabilizes the HOUSING assembly, transmitting resonance through the driveline.
• Difficulty engaging reverse gear – Plate deformation alters the position of the CONNECTING PART, impeding smooth hydraulic valve actuation.

Technical Specifications

Compatibility

This fixing plate is designed for the ZF WG250 series transmission family. It is also compatible with the following ZF models that share the same housing architecture:

• ZF WG180
• ZF WG200
• ZF WG250 (primary application)
• ZF WG300 (with adapter kit)

Always verify your transmission serial number before ordering. The plate interfaces directly with the TRANSMISSION HOUSING and HOUSING components.

Related Components