ZF 5838.109.001 DIFFERENTIAL | OEM Genuine Part

Overview

The ZF 5838.109.001 DIFFERENTIAL is a critical OEM genuine component designed to manage torque distribution between the drive wheels in heavy-duty construction machinery transmissions. Positioned within the final drive assembly, this differential assembly ensures smooth power transfer during turns and under load, reducing tire wear and driveline stress. The SKU 5838.109.001 is engineered to ZF’s exacting tolerances, making it a direct replacement for worn units in demanding off-road applications. When paired with a robust 5838022003: REAR AXLE, this differential maintains consistent traction even on uneven terrain.

Symptoms of Failure

• Oil leaks from the differential housing: Worn seals or cracks in the assembly often cause visible fluid loss around the pinion or axle flanges, leading to low lubricant levels and overheating.
• Gear slipping or clunking during turns: Internal gear wear or damaged spider gears produce a distinct metallic noise when the machine corners, indicating the differential is failing to distribute torque evenly.
• Vibration under load: Excessive play in the differential bearings or worn thrust washers creates driveline shudder, especially when accelerating or climbing slopes.
• Uneven tire wear: A failing differential forces one wheel to spin faster than the other, causing rapid tread degradation on the driven axle.

Technical Specifications

Compatibility

This differential is primarily used in ZF WG180 and WG200 series transmissions, which are common in wheel loaders, telehandlers, and graders. It also fits select ZF WG150 and WG250 variants where the final drive ratio matches. The part integrates directly with the 5838300128: DIFFERENTIAL HOUSING and relies on a 0750117075: TAPER ROLLER BEARING for axial support. A 0631329086: SPRING PIN secures the differential cross shaft, ensuring precise alignment under high torque.

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