ZF 4699.801.230 GK10LD | OEM Genuine Part

Overview

The ZF 4699.801.230 GK10LD is a genuine OEM gear assembly designed for the transfer case and auxiliary drive sections of heavy-duty construction machinery transmissions. This SKU (4699.801.230) serves as the primary power distribution component, directing torque from the main transmission to the front and rear axles. It sits directly between the input shaft housing and the output flange assembly, ensuring synchronized engagement under high-load conditions. As a critical wear item, the GK10LD gear set maintains precise gear mesh alignment, reducing vibration and extending the service life of the entire drivetrain.

Symptoms of Failure

• Intermittent gear slipping under load: When the 4699.801.230 gear teeth wear unevenly, operators may notice a momentary loss of power transfer when climbing grades or pushing heavy material, often accompanied by a grinding noise.
• Oil leaks near the transfer case housing: Worn gear surfaces can cause excessive heat, degrading the adjacent O-RING and leading to visible fluid seepage around the housing joint.
• Vibration or whining during low-speed operation: A failing GK10LD gear set produces a distinct high-pitched whine that increases with engine RPM, signaling uneven tooth contact and imminent failure.
• Difficulty engaging front axle drive: If the gear splines are stripped or chipped, the shift mechanism may fail to lock into 4WD mode, leaving the machine stuck in 2WD.

Technical Specifications

Compatibility

This genuine ZF 4699.801.230 gear is engineered for the GK10LD transfer case family, which is commonly installed in ZF WG180, WG200, and WG210 transmission series. It is also found in select ZF 4WG-200 and 6WG-200 variants used in wheel loaders, graders, and excavators. Always verify the transmission serial number before ordering, as minor revisions exist between early and late production units. For complete assembly, pair this gear with the 4699001162: GK10LD master kit, the 4699101108: HOUSING, the 4699102172: INPUT shaft, and the 4699103058: OUTPUT flange to ensure proper alignment and sealing.

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