ZF 4108.007.101 PK 7500 | OEM Genuine Part

Overview

The ZF 4108.007.101 PK 7500 is an OEM genuine component engineered for the high-torque planetary sections of heavy-duty construction machinery transmissions. This precision-machined part functions as a critical load-bearing element within the gear train, ensuring consistent power transfer under extreme stress. Specifically, it integrates with the main shaft assembly to maintain correct gear mesh alignment and oil flow distribution. The SKU 4108.007.101 is a direct factory replacement, guaranteeing exact fitment and metallurgical standards required for ZF’s PK 7500 series. When installed, it works in concert with the TRANSMISSION HOUSING to create a sealed, rigid environment for the rotating assembly.

Symptoms of Failure

• Erratic gear engagement under load: When the 4108.007.101 wears, operators often report a “slipping” sensation during acceleration, particularly in lower gears, as the part loses its ability to maintain precise clutch pack pressure.
• Metallic grinding noise from the bell housing: A distinct, high-pitched whine or grinding sound during deceleration indicates surface fatigue on this component, which can lead to catastrophic gear tooth damage if ignored.
• Hydraulic oil contamination with bronze particles: Wear debris from this part frequently clogs the transmission filter, causing intermittent pressure drops and delayed shifting. This symptom is often misdiagnosed as a pump failure.
• Visible oil seepage at the shaft seal interface: A worn 4108.007.101 can distort the SEALING RING groove, leading to chronic external leaks that require replacement of both the SCREW PLUG and SCREW PLUG to fully resolve.

Technical Specifications

Compatibility

This genuine ZF part is designed for the PK 7500 transmission family, which is widely deployed in wheel loaders, excavators, and telescopic handlers. It is a direct fit for the following ZF models: WG180, WG200, WG211, and WG310. The 4108.007.101 also integrates with the INTERM.GEARBOX assembly and the PLANET CARRIER in multi-speed configurations. For rebuilds, it is commonly paired with the BEARINGSHEET and PLANETARY GEAR to restore full torque capacity.

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