ZF 4644.199.920 LOOSE PARTS for WG200 | OEM Genuine Part

Overview

The ZF 4644.199.920 LOOSE PARTS kit is a critical service assembly designed specifically for the WG200 series transmission. This genuine OEM part set contains the essential fasteners, seals, and small hardware required to secure internal components during a rebuild or major repair. Positioned within the main gear train housing, this kit ensures that the TRANSMISSION HOUSING and TRANSMISSION HOUSING remain properly aligned and sealed under high torque loads. The SKU 4644.199.920 is factory-matched to the WG200 assembly, eliminating guesswork during installation.

Symptoms of Failure

• Oil seepage around housing joints: When the loose parts in this kit degrade, you may notice fluid weeping between the transmission housing and cover plates, especially after thermal cycling.
• Vibration or rattle at idle: Worn fasteners or missing hardware can cause internal components to shift, producing a distinct metallic chatter in neutral or low gear.
• Intermittent gear engagement difficulty: Loose retaining elements allow the valve body or clutch pack to move out of tolerance, leading to delayed or harsh shifts under load.
• Visible corrosion on mounting points: If the TYPE PLATE or GROOVED STUD show rust or deformation, the entire loose parts set should be replaced to prevent cascading damage.

Technical Specifications

Compatibility

This loose parts kit is engineered for the ZF WG200 transmission family, including the WG180, WG200, and WG210 variants. It is also compatible with select ZF 4HP and 5HP series when used with the corresponding COVER PLATE or COVER PLATE. For complete sealing, pair this kit with the O-RING and SCREW PLUG to prevent fluid loss. Always verify the SCREEN SHEET and SEALING CAP condition when replacing this assembly.

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