Overview
The ZF 4168.028.124 CONVERTER Torque Converter Assembly is a critical hydraulic coupling unit designed for the WG 100 Series transmission family. This complete unit transfers engine torque to the transmission input shaft while multiplying rotational force during low-speed operation. As a direct OEM replacement, the SKU 4168.028.124 integrates seamlessly between the engine flywheel and the 4651101007: TRANSMISSION HOUSING, ensuring smooth power delivery and lock-up clutch engagement. This assembly is essential for maintaining driveline efficiency in heavy-duty industrial applications.
Symptoms of Failure
- Torque converter shudder or vibration during acceleration, often caused by worn clutch friction material or damaged stator bearings.
- Transmission overheating and fluid discoloration, indicating internal converter slippage or failed lock-up clutch operation.
- Delayed or harsh gear engagement when shifting from neutral to drive or reverse, a classic sign of degraded converter impeller vanes.
- Whining or grinding noises from the bell housing area, typically due to failed thrust washers or a damaged 0634303928: O-RING causing pressure loss.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4168.028.124 |
| Assembly Type | Complete Torque Converter Unit |
| Outer Diameter | 385 mm (estimated) |
| Overall Length | 210 mm (estimated) |
| Weight | 28.5 kg (estimated) |
| Housing Material | Cast Aluminum Alloy |
| Impeller Material | Heat-Treated Steel |
| OEM Reference | ZF 4168.028.124 |
| Seal Type | Viton O-Ring (compatible with 0634303928) |
Compatibility
This torque converter assembly is specifically engineered for the ZF WG 100 Series transmissions, including models such as WG180, WG200, and WG250. It is also compatible with certain variants of the WG 120 and WG 150 series when used with the correct 4651301029: HOUSING adapter. For proper installation, ensure the 4651301024: HOUSING is free from cracks and that all mating surfaces are clean. This unit is not designed for passenger car transmissions; it is strictly for heavy-duty industrial and off-highway equipment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101007 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4651301029 | HOUSING | Converter housing adapter plate |
| 0634303928 | O-RING | Seals converter-to-housing joint |
| 4651301024 | HOUSING | Rear housing for pump assembly |
| 4651203002 | SCREEN SHEET | Filter screen for oil intake |
| 4651303005 | SCREEN SHEET | Secondary filter screen |
| 0636101032 | CAP SCREW | Fastener for housing bolts |
| 0630361028 | SEALING CAP | Closes hydraulic test ports |
| 4475280060 | SCREW PLUG | Oil drain plug |
| 0634303312 | O-RING | Seals screw plug threads |
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