ZF 4699.199.078 LOOSE PARTS | OEM Genuine Part

Overview

The ZF 4699.199.078 LOOSE PARTS kit (SKU: 4699.199.078) is an OEM genuine service assembly designed for the internal hydraulic and mechanical systems of ZF construction machinery transmissions. This kit contains the critical loose components—including seals, retaining rings, and small hardware—that secure and seal the main shaft assemblies within the transmission housing. Positioned between the input and output sections, this part ensures that the HOUSING maintains proper oil pressure and prevents contamination. When rebuilding a ZF transmission, this loose parts kit is essential for restoring factory tolerances and preventing premature wear on adjacent components.

Symptoms of Failure

• External oil seepage at housing joints: Worn loose parts cause hydraulic fluid to leak past the O-RING seals, leaving visible puddles under the machine.
• Intermittent gear slipping under load: Degraded retaining hardware allows axial play in the INPUT shaft, leading to loss of torque transfer during heavy digging or lifting.
• Metallic grinding noise from the bell housing: Loose internal fasteners can contact the OUTPUT drum, creating a distinct scraping sound that worsens with RPM.
• Erratic clutch engagement: Failed snap rings or spacers disrupt the alignment of the GK10LD clutch pack, causing delayed or harsh shifting.

Technical Specifications

Compatibility

This loose parts kit is engineered for ZF WG180, WG200, and WG210 series transmissions commonly found in wheel loaders, excavators, and telehandlers. It also fits select 4WG-200 and 6WG-200 variants used in heavy construction machinery. Always verify your transmission model tag before installation. The kit integrates directly with the TURNTABLE BEARING assembly and requires a new HOUSING COVER gasket for proper sealing.

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