ZF 4699.300.119 SLOTTED NUT | OEM Genuine Part

Overview

The ZF 4699.300.119 SLOTTED NUT (SKU: 4699.300.119) is a precision-engineered OEM genuine fastening component designed for critical axial retention within ZF heavy-duty transmissions. This slotted nut secures rotating assemblies—such as gear shafts and planetary carriers—against loosening under high torque and vibration. It sits directly on the main shaft or output shaft, locking into position with a cotter pin or tab washer to prevent rotational displacement. As a genuine ZF part, it guarantees exact thread pitch, hardness, and fatigue resistance required for construction machinery applications. When paired with a GEAR SHAFT or PLANET CARRIER, this nut ensures the entire drivetrain assembly remains securely clamped during operation.

Symptoms of Failure

• Transmission oil leaks at the shaft seal: A worn or loosened slotted nut allows axial play, damaging the seal lip and causing fluid seepage around the output flange.
• Gear slipping under load: When the nut fails to maintain preload, the HOUSING components lose alignment, leading to intermittent power loss or clunking during acceleration.
• Abnormal bearing noise or vibration: Insufficient clamping force permits bearing race movement, producing a low-frequency rumble or whine that worsens with speed.
• Difficulty shifting or gear clash: A loose nut can cause the BASIC PARTS assembly to drift out of tolerance, resulting in hard engagement or grinding noises.

Technical Specifications

Compatibility

This slotted nut is engineered for ZF powershift transmissions commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG210 series, as well as the 4WG-200 and 5WG-200 variants. It also applies to select Ecomat and Ergopower models where the output shaft requires a positive locking nut. Always verify thread pitch and slot width against your existing HOUSING assembly before installation.

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