ZF 4166.034.063 CONVERTER Torque Converter Assembly | Complete Unit

Overview

The ZF 4166.034.063 CONVERTER Torque Converter Assembly is a critical hydraulic coupling component positioned between the engine flywheel and the transmission input shaft within the WG 201 Series gearbox. This complete unit, identified by SKU 4166.034.063, multiplies engine torque during launch and provides smooth power delivery through fluid coupling. It directly interfaces with the 4644101160 TRANSMISSION HOUSING and the 4644301323 TRANSMISSION HOUSING to form the sealed driveline assembly. Precision machining ensures minimal vibration and optimal lock-up performance for heavy-duty industrial applications.

Symptoms of Failure

• Shuddering or vibration during acceleration – Worn stator or clutch friction material causes irregular torque multiplication, often noticeable at highway speeds.
• Delayed engagement or gear slipping – Internal seal degradation leads to low stall speed, resulting in a lag when shifting from neutral to drive.
• Transmission fluid overheating – A failing converter generates excessive heat due to internal leakage, triggering warning lights or burnt fluid odor.
• Audible whining or grinding noises – Damaged needle bearings or impeller blades produce metallic sounds, especially under load.

Technical Specifications

Compatibility

This torque converter is engineered for the ZF WG 201 Series transmission family, including models such as WG180, WG200, and WG210. It is also compatible with select WG 150 variants when used with the correct 4644301189 THREADED BUSH and 4475280043 SCREW PLUG for mounting alignment. Always verify bellhousing fitment with your specific transmission housing casting number before installation.

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