ZF 4644.103.111 OUTPUT for WG200 | OEM Genuine Part

Overview

The ZF 4644.103.111 OUTPUT for WG200 is a critical driveline component engineered to transfer torque from the transmission’s planetary gearset to the output shaft, ensuring smooth power delivery in heavy-duty industrial applications. As an OEM genuine part, this output assembly sits at the rear of the WG 200 series transmission, directly interfacing with the differential or final drive. The SKU 4644.103.111 is precision-machined to ZF’s exacting tolerances, providing reliable performance under high-load conditions. When installed alongside a TRANSMISSION HOUSING (4644101249) and a TRANSMISSION HOUSING (4644301402), this output unit forms the backbone of the gearbox’s power exit path.

Symptoms of Failure

• Oil leaks at the output flange – Worn seals or bearing surfaces in the 4644.103.111 can cause transmission fluid to weep, leading to low lubricant levels and overheating.
• Gear slipping under load – A degraded output assembly may fail to maintain proper engagement, resulting in intermittent power loss or shuddering during acceleration.
• Excessive driveline vibration – Bearing wear or shaft imbalance in this part produces noticeable shaking, especially at highway speeds or under heavy torque.
• Unusual whining or grinding noises – Metal-on-metal contact from a failing output unit generates audible distress signals from the transmission rear section.

Technical Specifications

Compatibility

This genuine ZF output assembly is primarily designed for the WG 200 series transmissions, including models WG180, WG200, and WG250. It also fits select variants of the WG 150 and WG 300 families where the output shaft configuration matches. For proper installation, ensure the COVER PLATE (4644301298) is correctly torqued to prevent contamination. The part integrates with the parking brake mechanism and should be paired with a PARKING BRAKE (4644109044) for full assembly integrity.

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