ZF 4644.102.419 INPUT for WG200 | OEM Genuine Part

Overview

The ZF 4644.102.419 INPUT for WG200 is a critical OEM genuine component engineered to manage the primary power transfer from the torque converter to the planetary gearset. Positioned at the front of the transmission housing, this input shaft assembly ensures precise rotational alignment and torque distribution under heavy-duty loads. The SKU 4644.102.419 is manufactured to ZF’s original specifications, guaranteeing a direct fit and long service life in WG 200 series transmissions. When paired with a properly sealed TRANSMISSION HOUSING, this input shaft maintains the structural integrity required for demanding industrial applications.

Symptoms of Failure

• Delayed or harsh engagement: Worn splines on the 4644.102.419 input shaft cause hesitation when shifting from neutral to drive, a common “ZF WG200 input shaft failure” symptom.
• Vibration under load: Bearing surface degradation leads to noticeable driveline shudder, especially during low-speed maneuvering or hill climbs.
• Transmission fluid contamination: A failing input shaft seal allows metal debris to enter the oil circuit, often detected during routine filter inspections.
• Intermittent gear slipping: Loss of positive engagement between the input shaft and clutch pack results in momentary power loss under acceleration.

Technical Specifications

Compatibility

This input shaft is primarily designed for the ZF WG200 series transmissions, including the WG180, WG200, and WG210 variants. It is also compatible with select ZF Ecolife models that share the same input architecture. For proper installation, verify that the TRANSMISSION HOUSING is free of cracks and that the TYPE PLATE confirms the exact transmission model. The 4644.102.419 requires the GROOVED STUD for secure mounting to the pump drive assembly.

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