ZF 4166.035.171 CONVERTER Torque Converter Assembly | Complete Unit

Overview

The ZF 4166.035.171 CONVERTER Torque Converter Assembly is a critical hydraulic component responsible for transferring engine torque to the transmission input shaft within the WG 200 Series. This complete unit replaces the original lock-up converter, managing fluid coupling and power multiplication during low-speed operation. The SKU 4166.035.171 is engineered to match OEM specifications, ensuring precise alignment with the pump and turbine assemblies. It sits directly between the engine flywheel and the transmission housing, converting rotational energy into hydraulic pressure for smooth gear engagement.

Symptoms of Failure

When the ZF 4166.035.171 torque converter begins to fail, operators often notice delayed engagement or shuddering during acceleration, a common long-tail search query for “torque converter shudder ZF WG200.” Another frequent symptom is overheating transmission fluid accompanied by a burnt smell, indicating internal clutch slippage. You may also experience intermittent gear slipping under load, particularly when climbing grades or towing. Finally, visible fluid leaks near the bell housing suggest seal degradation within the converter assembly, requiring immediate replacement to avoid damage to the 4644101222: TRANSMISSION HOUSING.

Technical Specifications

Compatibility

This torque converter assembly is specifically designed for ZF WG 200 Series transmissions, including models WG180, WG200, and WG210. It also fits select WG 150 variants with matching bell housing patterns. The unit is not compatible with older WG 120 or WG 130 series without adapter modifications. For proper installation, ensure the 4644301226: TRANSMISSION HOUSING is free of cracks and the 0730365067: TYPE PLATE matches your transmission serial number. Secure the assembly using the 0631311009: GROOVED STUD to prevent rotational misalignment.

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