ZF 4616.303.170 OUTPUT FLANGE for WG65 | OEM Genuine Part

Overview

The ZF 4616.303.170 OUTPUT FLANGE is a critical driveline component engineered specifically for the WG 65 Series transmission. This OEM genuine part transfers rotational torque from the transmission output shaft to the propeller shaft or drive axle, ensuring seamless power delivery in heavy-duty commercial vehicles. Positioned at the rear of the gearbox, the flange interfaces directly with the 4616101140: TRANSMISSION HOUSING to maintain precise alignment under extreme loads. As a direct replacement for SKU 4616.303.170, this flange is manufactured to ZF’s exacting tolerances, guaranteeing a vibration-free connection and long service life in demanding applications.

Symptoms of Failure

• Transmission oil leaks at the output seal: A worn flange surface or damaged splines can compromise the seal interface, leading to fluid seepage around the output shaft.
• Driveline vibration during acceleration: Excessive play between the flange and output shaft causes imbalance, resulting in noticeable shuddering at highway speeds.
• Clunking noise when shifting gears: Loose or cracked flange teeth create audible backlash during torque transitions, indicating imminent failure.
• Reduced power transfer efficiency: Spline wear prevents full engagement, causing intermittent slipping and loss of traction under load.

Technical Specifications

Compatibility

This output flange is designed for the ZF WG 65 Series transmission family. Based on its spline configuration and bolt pattern, it is also compatible with the following ZF models: WG180, WG200, and WG250. Always verify fitment by cross-referencing your transmission serial number. The flange mounts securely using 0636011118: HEXAGON SCREW fasteners, while the 4616301304: HOUSING and 4616301309: HOUSING components enclose the output assembly to protect against debris ingress.

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