ZF 4143.115.401 PLANETARY DRIVE | OEM Genuine Part

Overview

The ZF 4143.115.401 PLANETARY DRIVE is a critical torque-multiplying assembly within the HL 100 and HL 270 series transmissions. This OEM genuine component transfers rotational force from the input shaft to the output carrier, enabling smooth gear ratio changes under heavy load. As a precision-ground planetary gear set, it directly interfaces with the 4143101025: HOUSING and the 4143298040: CASE to maintain concentric alignment. The SKU 4143.115.401 is machined from case-hardened steel and is engineered for continuous duty cycles in construction and agricultural machinery.

Symptoms of Failure

• Whining or grinding noise during gear engagement: Worn planetary gears produce a high-pitched whine under acceleration, often misdiagnosed as bearing noise.
• Intermittent gear slipping under load: When the planetary carrier loses tooth contact, the transmission may momentarily lose torque delivery on inclines.
• Metallic debris in transmission fluid: Flaking from the planetary drive surfaces contaminates the hydraulic circuit, accelerating wear on the 0631329135: SPRING PIN and valve bodies.
• Erratic shift timing: A failing planetary drive causes the control unit to compensate with delayed shifts, reducing fuel efficiency.

Technical Specifications

Compatibility

This planetary drive is factory-installed in the ZF HL 100 Series and HL 270 Series transmissions. Based on its physical dimensions and tooth profile, it also fits the WG180, WG200, and WG210 models used in wheel loaders and telehandlers. Always verify the sun gear spline count against your existing 4143301055: HOUSING before installation.

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