ZF 0899.317.905 OUTPUT FLANGE for WG251 | OEM Genuine Part

Overview

The ZF 0899.317.905 OUTPUT FLANGE is a critical driveline component engineered specifically for the WG 251 Series transmission. This OEM genuine part serves as the mechanical interface between the transmission output shaft and the driveshaft, transferring rotational torque from the gearbox to the vehicle’s axles. Machined from high-strength alloy steel, the flange ensures precise alignment and vibration-free power delivery under heavy loads. The SKU 0899.317.905 is a direct-fit replacement that maintains factory tolerances, preventing premature wear on adjacent assemblies such as the TRANSMISSION HOUSING and the HOUSING.

Symptoms of Failure

• Transmission fluid leaking from the output shaft area — A worn or cracked output flange allows oil to seep past the seal, leaving puddles under the vehicle and reducing lubrication levels.
• Driveline vibration during acceleration — Spline wear or flange distortion causes imbalance, resulting in a noticeable shudder or shake that intensifies with speed.
• Clunking noise when shifting gears — Excessive play between the flange and output shaft produces a metallic knock, especially during gear engagement or load changes.
• Difficulty maintaining gear engagement — A damaged flange can misalign the driveline, leading to intermittent slipping or harsh engagement in the WG251.

Technical Specifications

Compatibility

This output flange is primarily designed for the ZF WG 251 Series transmission. Based on its spline configuration and bolt pattern, it is also compatible with the WG180, WG200, and WG250 models. Always verify the flange’s fitment with your specific transmission housing, as variations exist between series. The flange works in concert with the COVER and CAP SCREW to secure the output assembly.

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