ZF 4143.351.027 OUTER CLUTCH DISK for HL 100/HL 270 | OEM Genuine Part

Overview

The ZF 4143.351.027 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 between rotating shafts during gear engagement. The SKU 4143.351.027 interfaces directly with the 4143101009 HOUSING and the 4143301025 HOUSING, ensuring precise alignment and hydraulic pressure containment. Without a properly functioning outer clutch disk, the transmission cannot maintain consistent power flow under load.

Symptoms of Failure

• Delayed or harsh gear engagement: Worn friction material on the outer clutch disk causes hesitation when shifting from neutral to drive or reverse, often accompanied by a jarring thud.
• Transmission fluid overheating: Slipping clutches generate excessive heat, leading to burnt-smelling ATF and potential thermal damage to seals like the 0634313603 O-RING.
• Intermittent power loss under load: The transmission may momentarily lose torque during uphill climbs or heavy hauling, indicating the disk can no longer grip the pressure plate effectively.
• Visible metallic debris in oil pan: As the friction lining erodes, fine metal particles contaminate the hydraulic circuit, accelerating wear on adjacent components.

Technical Specifications

Compatibility

This outer clutch disk is designed for ZF HL 100 and HL 270 series transmissions, commonly found in WG180, WG200, and WG210 models. It also fits select variants of the 4WG-180 and 4WG-200 torque converter transmissions used in construction and agricultural machinery. For complete clutch pack restoration, pair this disk with the 0501342341 SUPPORT RING and the 4143298457 SEAL KIT to prevent fluid bypass. Always verify housing compatibility using the 4475280018 SCREW PLUG for proper hydraulic circuit sealing.

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