ZF 4699.103.122 OUTPUT | OEM Genuine Part

Overview

The ZF 4699.103.122 OUTPUT is a critical OEM genuine component engineered for the rear power take-off (PTO) assembly within heavy-duty ZF transmissions. This part functions as the primary output flange, transferring rotational force from the transmission to the driveline in construction machinery such as wheel loaders and graders. As a precision-machined steel component, it ensures minimal vibration and optimal torque delivery under extreme loads. The SKU 4699.103.122 is a direct replacement for worn or damaged output flanges, restoring drivetrain integrity and preventing costly downtime.

Symptoms of Failure

• Oil leaks around the output shaft seal: A worn 4699.103.122 flange can cause seal misalignment, leading to transmission fluid seepage that contaminates the clutch pack.
• Gear slipping under load: When the output flange splines wear, the PTO shaft loses positive engagement, causing intermittent power loss during heavy excavation.
• Excessive driveline vibration: A distorted or cracked output flange creates imbalance, resulting in rhythmic shaking at speeds above 20 km/h.
• Metallic debris in transmission oil: Fretting corrosion on the flange mating surface sheds fine metal particles that clog filters and damage bearings.

Technical Specifications

Compatibility

This output flange is designed for ZF WG-series transmissions commonly used in construction machinery. It directly fits the WG180, WG200, and WG211 models. It also integrates with the WG120 and WG150 series when paired with the correct 4699101153 HOUSING adapter. For proper installation, always replace the 0636101411 CAP SCREW and inspect the 4699301250 HOUSING for cracks. The 4699309121 HOUSING COVER must be torqued to 120 Nm to prevent oil bypass.

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