ZF 4699.005.004 GK30 | OEM Genuine Part

Overview

The ZF 4699.005.004 GK30 is a precision-engineered genuine OEM part designed for the clutch pack assembly within heavy-duty ZF powershift transmissions. This component, identified by SKU 4699.005.004, functions as a critical friction element responsible for transferring torque between planetary gear sets. Located inside the main transmission housing, the GK30 ensures smooth engagement and disengagement of gears under high load conditions typical in construction machinery. When paired with the 4699101018 HOUSING, it creates a sealed environment that maintains hydraulic pressure for consistent clutch operation.

Symptoms of Failure

• Delayed gear engagement or clutch slip under load: When the GK30 wears, operators notice hesitation when shifting from forward to reverse, especially on inclines.
• Erratic transmission temperature spikes: Friction material degradation causes excessive heat generation, triggering warning lights on the dashboard.
• Metallic grinding noises during shifting: Worn friction plates produce audible chatter or grinding sounds, particularly in lower gears.
• Hydraulic fluid contamination with dark particles: Debris from the failing GK30 circulates through the system, clogging filters and damaging the 4699301051 HOUSING.

Technical Specifications

Compatibility

This genuine ZF 4699.005.004 GK30 is engineered for use in the following ZF transmission models commonly found in construction machinery: WG180, WG200, WG210, and WG220. It also fits select variants of the Ecomat 2 and Ecomat 4 series used in wheel loaders and excavators. For proper installation, ensure the 4699301054 HOUSING COVER is torqued to specification and the 4699301055 COVER is free of warpage. Always verify your transmission serial number against the ZF parts catalog before ordering.

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