ZF 4657.104.009 DIFFERENTIAL for WG 190/WG 210 | OEM Genuine Part

Overview

The ZF 4657.104.009 DIFFERENTIAL is a critical power-distribution component engineered specifically for the WG 190 and WG 210 series transmissions. This OEM genuine part sits at the core of the final drive assembly, where it transfers torque from the driveshaft to the axle shafts while allowing the wheels to rotate at different speeds during turns. The SKU 4657.104.009 is precision-machined to factory tolerances, ensuring seamless integration with the surrounding drivetrain architecture. When paired with the 4657101042: TRANSMISSION HOUSING, this differential maintains proper gear mesh alignment and load distribution across the entire WG 210 system.

Symptoms of Failure

• Whining or howling noise during turns — Worn differential gears produce a distinct metallic whine, especially when cornering under load. This is a common long-tail search query for “ZF differential noise when turning.”
• Oil seepage from axle seals — As the differential housing fatigues, gear oil can leak past the seals, leaving puddles under the vehicle. This symptom often triggers searches for “ZF WG 210 differential oil leak fix.”
• Clunking on acceleration or deceleration — Excessive backlash in the differential gears creates a pronounced clunk when torque is applied or released, a classic sign of internal wear.
• Vibration at highway speeds — A failing differential can cause driveline shudder, particularly at 45–65 mph, due to uneven gear contact patterns.

Technical Specifications

Compatibility

This differential is factory-specified for the ZF WG 190 and WG 210 transmission series. It also fits the WG 180 and WG 200 models when used with the correct 0631306792: CYLINDRICAL PIN for alignment. The part integrates directly with the 4657201028: HOUS.FRONT SECT and the 4657201013: HOUSING REAR PART to form the complete differential case assembly. Always verify your transmission serial number before ordering.

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