ZF 4143.352.020 SHEET | OEM Genuine Part

Overview

The ZF 4143.352.020 SHEET is a precision-engineered OEM genuine component designed for critical sealing and structural integrity within ZF HL 100 and HL 270 series transmissions. This sheet acts as a gasket or shim, ensuring proper fluid retention and pressure regulation between mating surfaces in the valve body or housing assembly. The part number 4143.352.020 is a direct factory replacement, guaranteeing exact fitment and material composition to prevent cross-threading or misalignment. It sits adjacent to the 4143101009: HOUSING and the 4143301025: HOUSING, forming a sealed chamber that directs hydraulic flow to clutches and brakes.

Symptoms of Failure

When the ZF 4143.352.020 SHEET degrades or becomes damaged, operators may notice specific operational issues. Common failure symptoms include:

• External oil seepage at the housing joint – A worn sheet allows transmission fluid to escape, leaving visible drips or wet spots on the bell housing.
• Erratic gear engagement or slipping – Loss of internal pressure due to a compromised sheet leads to delayed shifts or clutch slip under load.
• Contaminated fluid with metallic debris – A failing sheet can shed material into the oil, causing premature wear on valves and the 0634313603: O-RING.
• Increased operating temperature – Reduced hydraulic efficiency forces the transmission to work harder, generating excess heat.

Technical Specifications

Compatibility

This sheet is engineered for use in ZF HL 100 and HL 270 series transmissions, which are commonly found in heavy-duty off-highway vehicles, wheel loaders, and industrial machinery. Based on its design and dimensions, it is also compatible with ZF WG180, WG200, and WG210 models where similar housing interfaces exist. For optimal sealing, always replace the 0634313603: O-RING and the 4475280018: SCREW PLUG simultaneously to prevent secondary leaks.

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