ZF 4166.335.289 STATOR for WG200 | OEM Genuine Part

Overview

The ZF 4166.335.289 STATOR is a critical hydraulic component engineered for the WG200 series transmission. Positioned within the torque converter assembly, this OEM genuine part directs fluid flow to optimize torque multiplication and lock-up clutch engagement. As a stationary vane element, the stator redirects transmission fluid returning from the turbine, enhancing efficiency and preventing power loss. The SKU 4166.335.289 is precision-machined to ZF’s exacting tolerances, ensuring seamless integration with the TRANSMISSION HOUSING and the DISCONNECTION assembly. Without a properly functioning stator, the torque converter cannot maintain adequate fluid coupling, leading to drivetrain inefficiency and premature wear on adjacent components.

Symptoms of Failure

• Torque converter shudder during acceleration: A worn stator fails to redirect fluid correctly, causing vibration when the converter locks up under load.
• Delayed engagement or gear hunting: Insufficient stator vane integrity reduces hydraulic pressure, leading to sluggish shifts and erratic gear selection in the WG200.
• Overheating transmission fluid: A seized or slipping stator generates excessive heat due to fluid turbulence, often accompanied by a burnt smell from the dipstick.
• Reduced fuel economy and power loss: When the stator cannot maintain torque multiplication, the engine works harder to achieve the same output, increasing fuel consumption by 10-15%.

Technical Specifications

Compatibility

This stator is specifically designed for the ZF WG200 series transmissions, including models WG180, WG200, and WG210. It is a direct replacement for units manufactured between 2008 and 2023. The part interfaces directly with the OUTPUT FLANGE and is secured using the HEXAGON SCREW (M10 x 25mm). Always verify your transmission serial number against ZF’s compatibility charts before installation.

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