ZF 4143.351.076 OUTER CLUTCH DISK for HL 100/HL 270 | OEM Genuine Part

Overview

The ZF 4143.351.076 OUTER CLUTCH DISK is a critical friction component engineered for the HL 100 and HL 270 series transmissions. Positioned within the clutch pack assembly, this OEM genuine part transfers torque from the driving hub to the housing, enabling smooth gear engagement under heavy loads. The SKU 4143.351.076 is specifically designed to withstand high thermal stress and repetitive cycling in industrial drivelines. When installed alongside the 4143101025 HOUSING and 4143301055 HOUSING, this disk ensures precise alignment and consistent hydraulic pressure distribution within the clutch pack.

Symptoms of Failure

• Erratic gear engagement or slipping under load: Worn friction material on the 4143.351.076 disk reduces clamping force, causing the transmission to slip during acceleration or uphill operation.
• Delayed shift response or harsh engagement: Degraded outer disk surfaces lead to inconsistent clutch pack compression, resulting in jarring shifts or hesitation when changing gears.
• Metallic debris in transmission fluid: As the disk wears, fine metal particles contaminate the oil, often visible during routine fluid changes or when inspecting the 0631329135 SPRING PIN for debris accumulation.
• Overheating and burnt oil smell: Excessive friction from a failing disk generates localized heat, which can warp the 4143298040 CASE and degrade fluid viscosity.

Technical Specifications

Compatibility

This outer clutch disk is directly compatible with ZF HL 100 and HL 270 series transmissions, including models such as the WG180, WG200, WG210, and WG250. It also fits select industrial variants of the ZF 4WG-200 and 5WG-300 series. Always verify the clutch pack stack height when replacing this disk, and inspect the 0501337904 SPEED SENSOR for proper clearance after installation.

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