ZF 4644.102.076 INPUT for WG200 | OEM Genuine Part

Overview

The ZF 4644.102.076 INPUT for WG200 is a critical OEM genuine component designed to transfer engine torque directly into the planetary gear set of the WG 200 Series transmission. This input shaft assembly sits at the front of the transmission housing, connecting the torque converter to the main drive train. As a precision-machined part, the SKU 4644.102.076 ensures minimal rotational play and optimal power delivery under heavy-duty industrial loads. Without this input, the transmission cannot engage forward or reverse gears, making it a core element for driveline integrity.

Symptoms of Failure

• Delayed or harsh engagement – When the 4644.102.076 input wears, operators often notice a lag between shifting and actual gear engagement, especially under load.
• Transmission slipping under acceleration – A worn input shaft can cause the transmission to lose torque transfer, resulting in RPM flare without corresponding vehicle speed increase.
• Metallic debris in transmission fluid – As the input splines or bearing surfaces degrade, fine metal particles contaminate the oil, often visible during routine fluid changes.
• Oil leaks near the bell housing – Deterioration of the input shaft seal surface leads to fluid seepage, which can be mistaken for a rear main seal failure.

Technical Specifications

Compatibility

This OEM input shaft is engineered for the ZF WG 200 Series transmissions, including models such as the WG180, WG200, and WG210. It is also compatible with certain ZF 4WG-200 and 5WG-200 variants used in construction equipment, forklifts, and agricultural machinery. Always verify your transmission serial number before ordering. For a complete rebuild, pair this input with the 4644105413: DISCONNECTION assembly and the 4642303093: OUTPUT FLANGE to ensure proper alignment. Secure the assembly using the 0636021010: HEXAGON SCREW and inspect the 4644101040: TRANSMISSION HOUSING for cracks or wear during installation.

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