ZF 0501.342.427 INNER CLUTCH DISK for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 0501.342.427 INNER CLUTCH DISK is a critical friction component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part sits within the clutch pack assembly, transferring torque between the rotating drum and the hub during gear engagement. The SKU 0501.342.427 ensures precise hydraulic pressure distribution, enabling smooth shifting under heavy loads. When paired with the 4699101153 HOUSING and the 4699301250 HOUSING, this disk maintains the necessary clearance for optimal clutch pack operation in ZF off-highway transmissions.

Symptoms of Failure

• Delayed or harsh gear engagement: A worn inner clutch disk causes hesitation when shifting from neutral to drive, often accompanied by a noticeable clunk.
• Transmission fluid overheating: Slipping friction material generates excessive heat, leading to burnt-smelling ATF and potential damage to the 4699309121 HOUSING COVER.
• Intermittent power loss under load: The disk fails to hold torque, causing the transmission to slip during uphill climbs or when towing heavy equipment.
• Metallic debris in the oil pan: As the friction lining disintegrates, fine metal particles contaminate the hydraulic circuit, accelerating wear on the 0636101411 CAP SCREW and adjacent components.

Technical Specifications

Compatibility

This inner clutch disk is specifically designed for ZF WG100, WG130, and WG131 powershift transmissions. It is also compatible with select variants of the WG180 and WG200 series when used in the forward clutch pack. Always verify the spline count and thickness against your existing disk before installation. For complete clutch rebuilds, consider replacing the 0631302072 CYLINDRICAL PIN and 0636302013 SCREW PLUG to ensure proper alignment and sealing.

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