ZF 4657.183.405 LOOSE PARTS for WG230 | OEM Genuine Part

Overview

The ZF 4657.183.405 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 230 Series transmission. This assembly contains the internal fasteners, locating pins, and sealing components required to secure and align the main transmission housing sections. As a precision-engineered loose parts kit, it ensures that the gear train remains properly seated under heavy torque loads. The SKU 4657.183.405 is the exact OEM reference for this kit, which replaces worn or damaged hardware during a major overhaul of the WG230 gearbox.

Symptoms of Failure

When the components within the 4657.183.405 kit begin to degrade, operators often notice distinct failure modes. Transmission housing oil seepage occurs at the mating flanges when the original fasteners lose their clamping force. A second common symptom is gear engagement hesitation or slipping under load, caused by micro-movement of the housing sections. Technicians also report abnormal vibration during power shifts as the internal alignment pins wear. Finally, metallic debris in the oil pan can indicate that the loose parts have fractured, allowing housing sections to shift.

Technical Specifications

Compatibility

This OEM genuine loose parts kit is engineered for the WG 230 transmission family. It is also compatible with the WG180, WG200, and WG250 series when used in conjunction with the correct TRANSMISSION HOUSING (4657101082). For full assembly, the kit works with the HOUS.FRONT SECT (4657201166) and the HOUSING REAR PART (4657201170). In applications requiring a split rear section, the HOUSING REAR SECTION (4657298102) is also used. Always verify the housing variant before ordering.

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