ZF 4644.311.160 OUTPUT SHAFT for WG180/WG200/WG201 | OEM Genuine Part

Overview

The ZF 4644.311.160 OUTPUT SHAFT is a critical OEM genuine component engineered for the WG180, WG200, and WG201 transmission series. This hardened steel shaft transfers rotational torque from the planetary gear set to the driveline, directly interfacing with the OUTPUT FLANGE to deliver power to the wheels. As the primary load-bearing element in the rear section, it rotates within the TRANSMISSION HOUSING and is secured by a HEXAGON SCREW at the flange interface. The SKU 4644.311.160 is a direct OEM replacement, ensuring exact spline geometry and surface hardness for reliable operation in heavy-duty industrial applications.

Symptoms of Failure

• Oil leaks at the rear seal area: A worn output shaft bearing surface or seal groove damage allows transmission fluid to escape, leaving puddles under the vehicle.
• Gear slipping under load: Excessive axial play in the output shaft causes intermittent disengagement of the DISCONNECTION mechanism, resulting in power loss during acceleration.
• Vibration or driveline shudder: Bent or fatigued output shafts create harmonic vibrations that worsen at highway speeds, often misdiagnosed as a universal joint issue.
• Metallic grinding noise: Worn splines on the shaft or flange produce a distinct grinding sound when shifting between forward and reverse gears.

Technical Specifications

Compatibility

This output shaft is specifically designed for ZF’s WG180, WG200, and WG201 series transmissions. These models are commonly found in mid-range construction equipment, agricultural tractors, and municipal utility vehicles. The shaft is compatible with both standard and heavy-duty variants within these series. Always verify the spline count and pilot bearing diameter against your existing shaft before installation. For complete assembly, pair this shaft with the HOUSING and secure it using the SCREW PLUG for the oil gallery.

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