ZF 4143.352.019 CENTERING DISC | OEM Genuine Part

Overview

The ZF 4143.352.019 CENTERING DISC is an OEM genuine component engineered to maintain precise axial alignment within the hydraulic control circuit of ZF heavy-duty transmissions. This disc ensures that the valve body and housing bores remain concentric, preventing lateral movement that can disrupt oil flow under high torque loads. As a critical locating element, the SKU 4143.352.019 sits between the main valve body and the 4143101009: HOUSING, where it absorbs vibration and thermal expansion forces. Without this centering disc, the transmission’s shift timing becomes erratic, leading to premature wear on adjacent components.

Symptoms of Failure

• Erratic gear engagement under load – A worn centering disc allows the valve body to shift, causing delayed or harsh shifts when towing or climbing grades.
• Intermittent oil pressure loss – Misalignment creates gaps that bypass hydraulic fluid, resulting in low line pressure warnings on the dash.
• Metallic rattling from the transmission pan – A degraded disc can fracture, sending debris into the sump and producing a distinct rattle at idle.
• Progressive oil seepage at the housing joint – When the disc fails, the 0634313603: O-RING can no longer seal properly, leading to slow drips from the bell housing area.

Technical Specifications

Compatibility

This centering disc is designed for ZF HL 100 Series and HL 270 Series transmissions. It is also a direct fit for the WG180, WG200, and Ecomat 4HP models where the valve body interfaces with the 4143301025: HOUSING. Always verify the presence of the 4475280018: SCREW PLUG in the adjacent port during installation, as this plug retains the centering disc in its bore. For complete rebuilds, pair this disc with the 4143298457: SEAL KIT to ensure all mating surfaces are renewed.

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