ZF 4644.103.403 OUTPUT for WG200 | OEM Genuine Part

Overview

The ZF 4644.103.403 OUTPUT for WG200 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gear set to the output flange. Positioned at the rear of the WG 200 Series gearbox, this OEM genuine part ensures precise torque delivery and maintains proper alignment within the powertrain. The SKU 4644.103.403 is manufactured to ZF’s exacting tolerances, providing a direct replacement that restores factory-spec performance in heavy-duty industrial applications. When paired with a robust TRANSMISSION HOUSING, this output shaft assembly guarantees reliable power transmission under continuous load conditions.

Symptoms of Failure

• Oil seepage around the output seal area: A worn 4644.103.403 output can compromise the sealing surface, leading to visible transmission fluid leaks that worsen during operation.
• Driveline vibration under acceleration: Excessive play in the output shaft bearing journal causes harmonic vibrations, often misdiagnosed as universal joint wear.
• Erratic gear engagement or delayed shifting: Degraded splines on the output component prevent proper clutch pack alignment, resulting in harsh or slipping shifts.
• Metallic debris in transmission fluid: Spalling or pitting on the output shaft surface introduces ferrous particles into the oil, accelerating wear on adjacent components like the HOUSING.

Technical Specifications

Compatibility

This output component is specifically engineered for the ZF WG 200 Series transmissions, including the WG180, WG200, and WG210 variants used in off-highway trucks, wheel loaders, and industrial material handlers. It directly replaces the original output shaft in models with serial numbers beginning after 2012. For proper installation, ensure the TYPE PLATE on your transmission confirms the WG200 designation. The 4644.103.403 also interfaces with the GROOVED STUD used for retaining the output flange assembly.

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