ZF 4661.103.004 OUTPUT for WG94 | OEM Genuine Part

Overview

The ZF 4661.103.004 OUTPUT is a critical final-drive component engineered specifically for the WG 94 Series transmission family. This OEM genuine part serves as the power delivery interface, transferring rotational force from the transmission’s planetary gearset to the driveline. Positioned at the rear of the main housing, the output assembly ensures precise torque transmission under heavy-duty industrial loads. The SKU 4661.103.004 is manufactured to ZF’s original tolerances, guaranteeing a direct fit and long service life without modification. When paired with the 4661101033: HOUSING and the 4661301096: HOUSING, this output unit forms the sealed rear section of the transmission, preventing contamination while maintaining hydraulic pressure integrity.

Symptoms of Failure

When the ZF 4661.103.004 OUTPUT begins to wear, operators often notice oil leaks at the rear output seal—a common long-tail search query for WG94 transmissions. Another frequent failure sign is gear slipping under load, particularly during low-speed maneuvering or hill climbs, indicating worn splines or bearing surfaces. A third symptom is abnormal vibration or whining noise from the transmission tail, which typically worsens with vehicle speed. Finally, erratic engagement of the parking pawl or difficulty holding position on an incline can point to output shaft wear. Addressing these issues promptly with the OEM 4661.103.004 prevents cascading damage to the 6073003011: CONTROL UNIT and the 4656183200: LOOSE PARTS kit.

Technical Specifications

Compatibility

The ZF 4661.103.004 OUTPUT is designed for the WG 94 Series transmission platform. Based on its output configuration and spline geometry, this part is compatible with the following ZF models: WG180, WG200, WG210, and WG240. These transmissions are commonly found in municipal trucks, refuse vehicles, and medium-duty construction equipment. For proper installation, always replace the 0631306174: CYLINDRICAL PIN and the 0769123894: TYPE PLATE when servicing the output assembly. Verify your transmission’s serial number against ZF’s fitment guide to ensure exact match.

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