Overview
The ZF 4166.035.184 CONVERTER Torque Converter Assembly is a complete, drop-in replacement unit engineered for the WG 150 Series transmission family. This critical component sits between the engine flywheel and the transmission input shaft, converting rotational torque through hydraulic fluid coupling to enable smooth power delivery and gear ratio multiplication. The SKU 4166.035.184 is a fully assembled torque converter, eliminating the need for disassembly or core exchange during rebuilds. It directly interfaces with the TRANSMISSION HOUSING (4642101047) and the TRANSMISSION HOUSING (4642301207), ensuring precise alignment and sealing within the drivetrain.
Symptoms of Failure
- Shuddering or vibration during acceleration: A worn torque converter lock-up clutch or damaged stator causes inconsistent hydraulic pressure, leading to noticeable shudder when shifting from a stop or under load.
- Transmission fluid overheating: Internal wear on the converter’s turbine or impeller reduces hydraulic efficiency, generating excessive heat and triggering warning lights or burnt fluid odor.
- Delayed or harsh engagement: When the converter fails to lock up properly, you may experience a pronounced lag between shifting into gear and actual vehicle movement, often accompanied by a hard jolt.
- Whining or grinding noise from the bell housing: Worn bearings or damaged converter fins produce a high-pitched whine or metallic grinding, especially at idle or low RPMs.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4166.035.184 |
| Type | Complete Torque Converter Assembly |
| Diameter | ~340 mm (13.4 in) |
| Weight | ~18.5 kg (40.8 lbs) |
| Material | High-strength steel housing with aluminum impeller |
| OEM Reference | ZF 4166.035.184 |
| Lock-up Clutch | Integrated, hydraulic-actuated |
| Fluid Capacity | ~1.2 L (0.32 gal) |
Compatibility
This torque converter assembly is specifically designed for the ZF WG 150 Series transmission. It is also compatible with the WG 180 and WG 200 series models that share the same bell housing bolt pattern and input shaft spline count. The unit integrates with the TYPE PLATE (0730365067) for correct identification and the GROOVED STUD (0631311009) for secure mounting to the flexplate. Always verify your transmission model and serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101047 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4642301207 | TRANSMISSION HOUSING | Secondary housing for valve body |
| 0730365067 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Mounting stud for converter-to-flexplate |
| 4642301168 | SCREEN SHEET | Filter screen for hydraulic circuit |
| 4642301169 | SCREEN SHEET | Secondary filter screen |
| 0636100621 | HEXAGON SCREW | Fastener for housing assembly |
| 4642301186 | SCREEN SHEET | Fine mesh screen for oil pan |
| 4644106300 | SHIFT SYSTEM | Hydraulic shift control unit |
| 4644306500 | COVER PLATE | Protective cover for shift mechanism |
