ZF 4644.104.408 DIFFERENTIAL for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.104.408 DIFFERENTIAL is a critical torque-distribution component engineered for the WG 180 and WG 200 series transmissions. This OEM genuine part manages speed differentiation between the drive wheels while transferring engine power through the axle assembly. Located within the final drive housing, the differential works in concert with the 4460115043: HOUSING to ensure smooth power delivery under heavy loads. The SKU 4644.104.408 is precision-machined to ZF factory tolerances, making it a direct replacement for worn units in industrial vehicles and construction machinery.

Symptoms of Failure

• Whining or howling noise during turns: Worn internal gears cause audible metal-on-metal contact, especially when cornering under load.
• Oil leaks near the axle drive housing: Degraded seals allow lubricant to escape, often visible as drips around the 4469315012: AXLE DRIVE HOUSING.
• Intermittent gear slipping or clunking: Excessive backlash from worn differential gears produces a delayed or jerky engagement when accelerating.
• Vibration at highway speeds: Imbalanced differential components transmit tremors through the driveline, worsening with RPM increases.

Technical Specifications

Compatibility

This differential is designed for ZF WG 180 and WG 200 series transmissions, commonly found in heavy-duty off-highway trucks, wheel loaders, and graders. It directly replaces the original unit in the final drive assembly. The part also integrates with the 4460115043: HOUSING and 4469315012: AXLE DRIVE HOUSING to form a complete differential system. For optimal performance, pair it with 0750117406: TAPER ROLLER BEARING and 0750117802: TAPERED ROLLER BEARING to ensure proper load distribution.

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