ZF 4108.306.068 OUTPUT FLANGE | OEM Genuine Part

Overview

The ZF 4108.306.068 OUTPUT FLANGE is a critical OEM genuine component designed to transfer rotational torque from the transmission output shaft to the driveline in heavy-duty construction machinery. This precision-machined flange sits at the rear of the gearbox assembly, acting as the mechanical interface that connects the transmission to the propeller shaft or final drive. As a load-bearing element, the 4108.306.068 ensures smooth power delivery under extreme stress, making it essential for maintaining operational uptime in excavators, wheel loaders, and graders. The SKU 4108.306.068 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit without modification.

Symptoms of Failure

• Transmission fluid seepage around the output shaft: A worn or cracked output flange often leads to oil leaks at the rear of the transmission, visible as drips or wetness on the housing. This is a common long-tail search query for “ZF transmission oil leak at output flange.”
• Vibration or driveline shudder during acceleration: When the flange splines wear or the mounting face distorts, it creates imbalance, causing noticeable shaking in the cab or undercarriage—often searched as “construction equipment driveline vibration causes.”
• Intermittent gear slipping or power loss: A damaged flange can misalign the output shaft, leading to incomplete engagement of the transmission’s final gear set. Operators may report “ZF transmission slipping under load” as a symptom.
• Metallic debris in transmission oil: Flange wear generates fine metal particles that contaminate the lubricant, detectable during routine oil changes. This is a critical warning sign for “transmission internal damage from flange failure.”

Technical Specifications

Compatibility

This output flange is engineered for use in ZF’s WG series powershift transmissions commonly deployed in construction machinery. Based on its spline configuration and bolt pattern, the 4108.306.068 is compatible with the following ZF transmission models: WG180, WG200, and WG211. These transmissions are found in equipment from manufacturers such as Liebherr, Caterpillar, and Volvo CE. Always verify your transmission serial number before ordering to ensure exact fitment.

Related Components

When replacing the output flange, it is advisable to inspect and replace adjacent sealing and mounting parts to prevent future failures. The following components are installed in the same ZF assembly and are often replaced together: