ZF 4108.303.219 PLANET CARRIER | OEM Genuine Part

Overview

The ZF 4108.303.219 PLANET CARRIER is a critical rotating assembly within the planetary gear set of heavy-duty ZF transmissions. This OEM genuine part supports the planetary gears and distributes torque evenly across the gear train, directly influencing shift quality and load-bearing capacity. As a central hub in the transmission’s power flow, the planet carrier works in concert with the 4108101108: HOUSING and the 4108301436: INPUT SHAFT to manage high rotational forces. The SKU 4108.303.219 is precision-machined to OEM tolerances, ensuring seamless integration into construction machinery transmissions.

Symptoms of Failure

• Gear Slipping Under Load: When the planet carrier wears, planetary gears lose alignment, causing intermittent slipping during acceleration or uphill operation.
• Metallic Grinding Noises: A distinct grinding or whining sound from the transmission housing often indicates worn carrier bearings or cracked carrier pockets.
• Oil Contamination with Metal Shavings: Excessive wear on the carrier’s gear pockets produces metallic debris in the transmission fluid, visible during oil changes.
• Erratic Shift Timing: A failing carrier disrupts gear engagement timing, leading to harsh or delayed shifts in construction equipment.

Technical Specifications

Compatibility

This planet carrier is designed for ZF WG series transmissions commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG210 models. It also applies to select variants of the WG150 and WG250 series. Always verify the transmission serial number before installation. The carrier mounts between the 4108306172: GASKET and the 0730365280: TYPE PLATE for proper sealing and identification.

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