ZF 4143.139.003 TYPE PLATE | OEM Genuine Part

Overview

The ZF 4143.139.003 TYPE PLATE is a critical identification and sealing component used in the final drive assembly of heavy-duty ZF transmissions. This OEM genuine part, referenced by SKU 4143.139.003, is mounted externally on the transmission housing to provide permanent model and serial number identification while also serving as a gasket surface for the housing interface. It is specifically engineered for the HL 100 Series and HL 270 Series transmission families, where it sits between the main case and the output flange assembly. The type plate ensures proper alignment of the 4143101032: HOUSING and the 4143301055: HOUSING, preventing contamination ingress and maintaining oil retention under high-pressure operating conditions.

Symptoms of Failure

When the ZF 4143.139.003 TYPE PLATE degrades or becomes damaged, operators will notice specific performance issues. Oil seepage around the identification plate area is the most common symptom, often mistaken for a housing crack. Transmission overheating due to incorrect fluid levels can occur if the plate warps, allowing gradual oil loss. Vibration or noise from the output shaft area may develop when the plate loses its sealing integrity, permitting debris to enter the bearing cavity. Finally, difficulty reading transmission identification numbers due to corrosion or physical damage to the plate surface is a clear indicator that replacement is needed to maintain proper service records.

Technical Specifications

Compatibility

This ZF 4143.139.003 TYPE PLATE is designed for use in the following ZF transmission models: WG180, WG200, HL 100 Series, and HL 270 Series. It is also compatible with the WG150 and WG250 series when used in conjunction with the 4143298040: CASE assembly. The plate mounts directly to the 4143101032: HOUSING and is secured using the 0631329135: SPRING PIN for precise alignment. For complete sealing, ensure the 4143301055: HOUSING is properly torqued to specification.

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