ZF 5838.109.002 DIFFERENTIAL | OEM Genuine Part

Overview

The ZF 5838.109.002 DIFFERENTIAL is a critical torque-distributing assembly designed for heavy-duty construction machinery transmissions. This OEM genuine part sits at the heart of the final drive, splitting engine power between the left and right axle shafts while allowing for speed differences during turns. As a complete differential unit, it directly integrates with the DIFFERENTIAL HOUSING to ensure smooth power transfer under extreme loads. The SKU 5838.109.002 is precision-machined to ZF factory tolerances, making it a direct replacement for worn or failed units in wheel loaders, graders, and compactors.

Symptoms of Failure

• Grinding or chattering noise during turns – Worn internal gears cause metallic grinding sounds, especially when maneuvering at low speeds on job sites.
• Oil leaks near the axle housing – Degraded seals or a cracked differential case allow gear oil to seep out, visible as drips under the machine.
• Uneven wheel spin or loss of traction – A failing differential fails to distribute torque properly, causing one wheel to spin freely while the other remains stationary.
• Vibration under load – Worn bearings or misaligned gears create noticeable vibration through the chassis when the transmission is engaged.

Technical Specifications

Compatibility

This differential is engineered for ZF WG series transmissions commonly found in construction machinery. It is compatible with the following ZF transmission models: WG180, WG200, WG210, and WG250. These transmissions are used in brands like Case, New Holland, Liebherr, and Volvo for wheel loaders and telehandlers. Always verify the axle configuration before installation. For a complete rebuild, pair this unit with a new TAPER ROLLER BEARING and SPRING PIN to secure the assembly. Additionally, inspect the THRUST WASHER for wear during service.

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