ZF 4644.103.404 OUTPUT for WG200 | OEM Genuine Part

Overview

The ZF 4644.103.404 OUTPUT for WG200 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gear set to the output shaft and downstream drivetrain. Situated at the rear of the WG 200 Series housing, this OEM genuine part ensures precise torque delivery and maintains proper alignment within the gear train. The SKU 4644.103.404 is manufactured to ZF’s exacting tolerances, providing a direct replacement that restores factory performance. When servicing the output assembly, technicians often inspect the adjacent TRANSMISSION HOUSING for cracks or wear, as housing integrity directly affects output bearing alignment.

Symptoms of Failure

When the ZF 4644.103.404 OUTPUT begins to fail, operators may notice specific performance degradation. Look for these common failure indicators:

• Oil leaks at the rear seal area: Worn output splines or bearing surfaces can cause seal misalignment, leading to fluid seepage around the tail housing.
• Gear slipping under load: A damaged output hub may lose engagement with the planetary carrier, resulting in intermittent power loss during acceleration or hill climbs.
• Vibration or driveline shudder: Excessive clearance in the output bearing pocket creates harmonic vibrations felt through the chassis at highway speeds.
• Unusual whining or grinding noises: Metal-to-metal contact from a worn output gear set produces a distinct high-pitched sound during deceleration.

Technical Specifications

Compatibility

This output component is specifically designed for the ZF WG 200 Series transmission family. It is directly compatible with the following models:

• ZF WG 200 (all sub-variants including WG200-1, WG200-2)
• ZF WG 180 (when used with the correct TRANSMISSION HOUSING adapter)
• ZF WG 150 (limited application; verify housing bore dimensions)

During installation, always replace the O-RING and SCREW PLUG to prevent fluid bypass. The output assembly works in concert with the shift system and valve block to maintain proper hydraulic pressure.

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