ZF 4644.199.398 LOOSE PARTS for WG200 | OEM Genuine Part

Overview

The ZF 4644.199.398 LOOSE PARTS kit is a critical service component designed specifically for the WG 200 series transmission. This genuine OEM assembly contains the necessary fasteners, seals, and small hardware required to secure and seal the main control housing during a rebuild or overhaul. Positioned at the interface between the valve body and the transmission case, this kit ensures that hydraulic pressure remains stable and that no contaminants enter the drivetrain. The SKU 4644.199.398 is often ordered alongside a new 4460115043: HOUSING to guarantee a complete, leak-free assembly.

Symptoms of Failure

When the components within the ZF 4644.199.398 LOOSE PARTS kit begin to degrade, operators may notice several distinct warning signs. External oil seepage around the transmission control cover is a primary indicator, often appearing as a thin film of ATF on the bell housing. Erratic shift timing or delayed engagement can occur if the retaining hardware loosens, allowing the valve body to shift out of alignment. Increased transmission noise during acceleration, particularly a high-pitched whine, suggests that the included fasteners are no longer providing proper clamping force. Finally, intermittent gear slippage under load is a common symptom when the loose parts fail to maintain a sealed hydraulic circuit.

Technical Specifications

Compatibility

This genuine ZF 4644.199.398 LOOSE PARTS kit is engineered for the WG 200 series transmission family. It is directly compatible with the WG180, WG200, and WG210 models. The kit also fits select variants of the WG160 and WG250 when used with the correct 4469315012: AXLE DRIVE HOUSING. For proper installation, always pair this kit with a new 0750117406: TAPER ROLLER BEARING and a 0750117802: TAPERED ROLLER BEARING to ensure correct shaft alignment and preload.

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