ZF 4166.030.047 CONVERTER Torque Converter Assembly | Complete Unit

Overview

The ZF 4166.030.047 CONVERTER Torque Converter Assembly is a critical hydraulic coupling unit designed for the WG 150 Series transmission family. This complete assembly transfers engine torque to the transmission input shaft while multiplying rotational force during low-speed operation. Positioned between the engine flywheel and the transmission housing, the SKU 4166.030.047 replaces worn or damaged torque converters to restore driveline efficiency. When installing this unit, always inspect the adjacent TRANSMISSION HOUSING (4642101109) for cracks or warpage, as misalignment can compromise converter performance.

Symptoms of Failure

• Shuddering or vibration during acceleration – A failing torque converter often causes a pronounced shudder when the lock-up clutch engages, especially at highway speeds.
• Transmission fluid overheating – Worn internal stator bearings or damaged vanes generate excessive heat, leading to burnt-smelling fluid and potential gearbox damage.
• Delayed or harsh gear engagement – When the converter fails to maintain proper hydraulic pressure, shifts become erratic, and you may notice a lag when moving from Park to Drive.
• Visible fluid leaks near the bell housing – A cracked converter hub or failed seal allows ATF to escape, often pooling under the vehicle at the transmission-to-engine junction.

Technical Specifications

Compatibility

This torque converter assembly is engineered for the ZF WG 150 Series transmissions. It is also compatible with the WG 180 and WG 200 models when used with the correct adapter plate. The unit directly replaces original equipment in ZF 4WG-150, 5WG-150, and 6WG-150 gearboxes. For proper fitment, verify the bell housing pattern against your existing TRANSMISSION HOUSING (4642301205). Additionally, ensure the TYPE PLATE (0730365125) matches your transmission model, and use a GROOVED STUD (0631311009) for secure mounting of the converter-to-flexplate connection.

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