ZF 4616.303.171 OUTPUT SHAFT for WG65 | OEM Genuine Part

Overview

The ZF 4616.303.171 OUTPUT SHAFT is a critical driveline component engineered specifically for the WG 65 Series transmission family. This OEM genuine part transfers rotational torque from the planetary gearset to the vehicle’s drive shaft, ensuring precise power delivery under heavy-duty conditions. Located at the rear of the transmission housing, the output shaft interfaces directly with the TRANSMISSION HOUSING and is secured by precision fasteners such as the HEXAGON SCREW. The SKU 4616.303.171 is manufactured to ZF’s original tolerances, making it a direct replacement for worn or damaged shafts in commercial vehicle transmissions.

Symptoms of Failure

• Oil leaks at the rear seal area – A worn output shaft can damage the sealing surface, causing transmission fluid to weep or drip, often mistaken for a simple seal failure.
• Gear slipping under load – When the shaft splines wear, torque transfer becomes inconsistent, leading to intermittent slipping during acceleration or hill climbing.
• Vibration or driveline shudder – Excessive radial play in the output shaft bearing journal creates low-frequency vibrations felt through the chassis, especially at highway speeds.
• Metallic grinding noises – Advanced wear on the shaft’s bearing race or spline teeth produces a distinct grinding sound during gear engagement or coasting.

Technical Specifications

Compatibility

This output shaft is designed for the ZF WG 65 Series, which includes the WG65, WG80, and WG100 models commonly found in medium-duty trucks and buses. It is also compatible with select WG180 and WG200 variants that share the same rear housing interface. Always verify the spline count and bearing journal dimensions against your existing shaft before installation. The shaft mounts inside the TRANSMISSION HOUSING and is retained using HEXAGON SCREW and HEXAGON SCREW fasteners for proper preload.

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