ZF 4661.351.003 OUTER CLUTCH DISK for WG 90/WG 94 | OEM Genuine Part

Overview

The ZF 4661.351.003 OUTER CLUTCH DISK is a critical friction component engineered for the WG 90 and WG 94 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it engages and disengages torque flow between planetary gear sets. The SKU 4661.351.003 is specifically designed to withstand high thermal loads and shear forces during shifting cycles. When installed alongside the 4661101001 TRANSMISSION HOUSING, it ensures precise alignment of the clutch stack, preventing axial play that can degrade shift quality over time.

Symptoms of Failure

• Delayed or harsh gear engagement — Worn outer clutch disks cause hesitation when shifting from neutral to drive or reverse, often accompanied by a noticeable clunk.
• Transmission slipping under load — As friction material degrades, the clutch pack fails to hold torque, leading to RPM flare without corresponding vehicle acceleration.
• Burnt transmission fluid odor — Excessive heat from slipping disks generates a distinct burnt smell, indicating the 4661.351.003 disk has lost its friction coefficient.
• Metallic debris in oil pan — Advanced wear produces fine metal particles from the disk’s steel core, which can contaminate the 0631306174 CYLINDRICAL PIN and other valve body components.

Technical Specifications

Compatibility

This outer clutch disk is a direct fit for ZF WG 90 and WG 94 series transmissions, including models such as WG180, WG200, WG210, and WG240. It also applies to the WG 90-4 and WG 94-6 variants used in medium-duty trucks and construction equipment. The disk interfaces with the 4661301007 HOUSING and the 4661301093 TUBE to form a sealed clutch chamber. Always verify your transmission serial number before ordering.

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