ZF 4646.104.409 DIFFERENTIAL for WG 250/WG 260/WG 310 | OEM Genuine Part

Overview

The ZF 4646.104.409 DIFFERENTIAL is a critical torque-distribution component engineered for the WG 250, WG 260, and WG 310 series transmissions. This OEM genuine part sits within the final drive assembly, managing speed differentiation between the left and right output shafts while transferring engine power to the wheels. The SKU 4646.104.409 ensures precise gear meshing and load handling under heavy industrial conditions. It works in conjunction with the 4646101066: TRANSMISSION HOUSING to maintain structural alignment and oil circulation within the differential cavity.

Symptoms of Failure

• Grinding or whining noise during turns: Worn differential gears cause audible metal-on-metal contact, especially when cornering under load.
• Oil leaks near the axle flange: Degraded seals or bearing wear in the 4646.104.409 unit allow transmission fluid to escape, leaving visible drips on the housing.
• Uneven tire wear or wheel hop: A failing differential fails to distribute torque evenly, leading to premature tread wear or vibration during acceleration.
• Clunking when shifting between forward and reverse: Excessive backlash in the differential gearset produces a distinct metallic clunk as drivetrain lash is taken up.

Technical Specifications

Compatibility

This differential is directly compatible with ZF WG 250, WG 260, and WG 310 transmission models. It also fits select WG 180 and WG 200 variants where the final drive ratio matches the 4646.104.409 gear set. Always verify the axle housing configuration; the 4646301228: HOUSING and 4646301251: COVER must match the differential flange pattern. For proper torque application, use the 0636015304: HEXAGON SCREW during installation.

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