ZF 4646.153.026 COUPLING for WG 250/WG 260/WG 310 | OEM Genuine Part

Overview

The ZF 4646.153.026 COUPLING is a critical OEM genuine component engineered for the WG 250, WG 260, and WG 310 transmission series. This coupling serves as the primary mechanical link between the transmission output shaft and the driveline, ensuring precise torque transfer and rotational alignment. Positioned within the rear housing assembly, the SKU 4646.153.026 interfaces directly with the TRANSMISSION HOUSING to maintain structural integrity under heavy loads. Its robust design minimizes vibration and compensates for minor misalignment, making it indispensable for industrial applications requiring sustained power delivery.

Symptoms of Failure

• Driveline vibration during acceleration: A worn 4646.153.026 coupling often causes noticeable shuddering or shaking when the vehicle is under load, especially at low speeds.
• Intermittent gear engagement issues: As the coupling degrades, you may experience delayed or rough shifting between gears, mimicking transmission slip.
• Metallic clicking from the transmission bell housing: Loose or fatigued coupling components produce distinct clicking sounds during deceleration or when shifting from Park to Drive.
• Oil seepage near the output flange: A failing coupling can compromise the seal between the HOUSING and the output shaft, leading to gradual fluid loss.

Technical Specifications

Compatibility

This coupling is specifically designed for ZF WG series transmissions, including the WG 180, WG 200, WG 250, WG 260, and WG 310 models. It is a direct replacement for units built between 2005 and 2020. When servicing the coupling, always inspect the adjacent COVER and HEXAGON SCREW for wear, as these components share the same torque path. The part is not compatible with ZF Ecomat or AS Tronic series without adapter kits.

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