Overview
The ZF 4168.030.114 CONVERTER Torque Converter Assembly | Complete Unit is a critical hydraulic coupling component engineered for the WG 150 Series transmission family. Positioned between the engine flywheel and the transmission input shaft, this assembly multiplies engine torque and transfers rotational power through fluid dynamics, enabling smooth vehicle launch and load management. The SKU 4168.030.114 represents a fully assembled, ready-to-install unit that replaces worn or failed converters in heavy-duty industrial applications. Proper torque converter function is essential for preventing driveline shock and ensuring consistent power delivery under high-stress operating conditions.
Symptoms of Failure
- Torque converter shudder or vibration during acceleration, often felt as a rhythmic shaking at low speeds, indicating worn clutch friction material or damaged stator internals.
- Delayed or harsh engagement when shifting from neutral to drive or reverse, a classic sign of internal seal failure or impeller blade degradation within the 4168.030.114 assembly.
- Transmission fluid overheating accompanied by a burnt smell, caused by excessive slippage from a failing converter lock-up clutch or blocked fluid passages.
- Audible whining or grinding noises from the bell housing area, pointing to worn bearings or cracked turbine fins that require immediate replacement of the complete unit.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4168.030.114 |
| Assembly Type | Complete Torque Converter (Lock-up capable) |
| Outer Diameter | ~340 mm (estimated) |
| Overall Length | ~180 mm (estimated) |
| Weight | ~22 kg (48.5 lbs) |
| Housing Material | High-strength cast iron with hardened steel stator |
| Impeller & Turbine Material | Aluminum alloy with heat-treated fins |
| OEM Reference | ZF 4168.030.114 |
| Fluid Capacity | ~4.5 liters (estimated) |
Compatibility
This torque converter assembly is primarily designed for the ZF WG 150 Series transmissions. Based on its physical dimensions and spline configuration, it is also compatible with select variants of the WG 180 and WG 200 series used in off-highway trucks, wheel loaders, and industrial machinery. Always verify the bell housing pattern and pilot bore diameter against your specific transmission model before installation. For complete transmission rebuilds, consider pairing this converter with a new TRANSMISSION HOUSING (4642101109) or an alternate TRANSMISSION HOUSING (4642301205) to ensure structural integrity. Additionally, the TYPE PLATE (0730365125) provides critical identification data, while the GROOVED STUD (0631311009) secures the converter housing to the flywheel assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Encloses and supports gear train and converter assembly |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG series |
| 0730365125 | TYPE PLATE | Identification plate with serial and model data |
| 0631311009 | GROOVED STUD | Fastener for converter-to-flywheel mounting |
| 4642301168 | SCREEN SHEET | Filter screen for transmission fluid intake |
| 4642301169 | SCREEN SHEET | Secondary filter screen variant |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing and cover plates |
| 4642301186 | SCREEN SHEET | Fine mesh screen for high-flow applications |
| 4644106300 | SHIFT SYSTEM | Hydraulic control unit for gear selection |
| 4644306500 | COVER PLATE | Protective cover for shift system access |
