ZF 4699.001.202 GK10 | OEM Genuine Part

Overview

The ZF 4699.001.202 GK10 is an OEM genuine gearset component engineered for heavy-duty construction machinery transmissions. This precision-machined part sits within the planetary gear assembly, directly managing torque distribution and gear ratio engagement in ZF power shift transmissions. As a critical wear item, the SKU 4699.001.202 ensures synchronized load transfer between the input shaft and output drive, maintaining operational efficiency under extreme loads. It is designed to interface seamlessly with the 4699101125 HOUSING, which encloses the gearset, and the 0501329881 HOUSING COVER that seals the assembly against contaminants.

Symptoms of Failure

• Intermittent gear slipping under load: When the 4699.001.202 wears, teeth lose profile, causing the transmission to momentarily lose drive power during excavation or grading operations.
• Metallic grinding noise from the transmission housing: Worn gear surfaces produce a distinct high-pitched whine or grinding sound, especially during gear shifts or when reversing under heavy load.
• Oil contamination with metallic particles: Degradation of the gearset sheds fine steel debris into the transmission fluid, visible during oil changes as glitter-like particles in the sump.
• Delayed or harsh engagement: A failing GK10 gearset causes sluggish clutch pack engagement, leading to jerky starts or hesitation when moving from neutral to forward/reverse.

Technical Specifications

Compatibility

This genuine ZF 4699.001.202 gearset is designed for use in the following ZF transmission models commonly found in construction machinery: WG180, WG200, WG211, and WG250 series. It is also compatible with select Ecomat 2 and Ecomat 4 variants used in wheel loaders and excavators. For proper installation, ensure the 0630513065 SNAP RING is correctly seated to retain axial position, and replace the 0634306309 O-RING to prevent fluid bypass at the housing interface.

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