ZF 4657.183.401 LOOSE PARTS for WG190 | OEM Genuine Part

Overview

The ZF 4657.183.401 LOOSE PARTS for WG190 is a critical internal component set designed for the WG 190 Series transmission. This OEM genuine part functions as a collection of fasteners, spacers, and retention elements that secure the transmission housing assembly and internal sub-assemblies. It sits within the main casing structure, ensuring that the TRANSMISSION HOUSING remains properly aligned with the HOUS.FRONT SECT and the HOUSING REAR PART. The SKU 4657.183.401 is a genuine ZF loose parts kit, providing all necessary hardware to maintain structural integrity during high-torque operations.

Symptoms of Failure

• Oil leaks around the housing joints: When the loose parts wear or loosen, the seal between the HOUSING REAR SECTION and the front housing degrades, leading to visible fluid seepage.
• Gear slipping under load: Worn fasteners or spacers can cause micro-movement in the housing, misaligning gear shafts and resulting in intermittent slipping during acceleration.
• Abnormal vibration or noise: Loose retention elements allow the housing sections to shift, producing a distinct rattling or humming sound from the transmission bell housing.
• Difficulty engaging gears: If the fixing plates or cap screws fail, the internal shift mechanism may bind, causing hard or delayed gear engagement.

Technical Specifications

Compatibility

This loose parts kit is primarily engineered for the ZF WG 190 Series transmission. It is also compatible with the WG 180 and WG 200 series, as these models share a similar housing architecture. The kit ensures proper fitment with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, and it can be used in WG 210 variants when paired with the correct rear section components. Always verify the specific housing configuration before installation.

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