Overview
The ZF 4168.028.211 CONVERTER Torque Converter Assembly is a critical hydraulic coupling component that transfers engine torque to the transmission input shaft within ZF’s WG 92 and WG 98 series drivelines. This complete unit replaces worn or failed converters, restoring smooth power delivery and preventing drivetrain damage. The SKU 4168.028.211 is designed to interface directly with the 4660101011: TRANSMISSION HOUSING and the 4660301018: HOUSING, ensuring precise alignment and sealing within the assembly.
Symptoms of Failure
- Torque converter shudder or vibration during acceleration — A worn stator or lockup clutch causes harsh engagement, often felt as a shudder between 30-50 km/h.
- Transmission fluid overheating and burnt smell — Internal wear reduces converter efficiency, generating excessive heat and accelerating fluid degradation.
- Delayed or erratic gear engagement — A failing torque converter fails to build proper hydraulic pressure, leading to hesitation when shifting from Park to Drive or Reverse.
- Oil leaks near the bell housing area — Seal failure around the converter hub allows ATF to escape, leaving puddles under the vehicle.
Technical Specifications
| Part Number | 4168.028.211 |
| Type | Torque Converter Assembly (Complete Unit) |
| Outer Diameter | Approx. 340 mm |
| Weight | ~18.5 kg |
| Housing Material | Cast Aluminum with Steel Impeller |
| OEM Reference | ZF 4168.028.211 |
| Torque Capacity | Up to 1800 Nm (estimated) |
Compatibility
This torque converter assembly is engineered for ZF WG series transmissions, specifically the WG180, WG200, and WG250 models. It is also compatible with the WG 92 and WG 98 series, which are commonly found in heavy-duty construction equipment, agricultural tractors, and industrial loaders. For proper installation, ensure the 0631306174: CYLINDRICAL PIN is correctly aligned to the converter hub, and verify the 0769123894: TYPE PLATE matches your unit’s specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101011 | TRANSMISSION HOUSING | Encloses and supports the torque converter and gear train |
| 4660301018 | HOUSING | Provides structural mounting for converter assembly |
| 0631306174 | CYLINDRICAL PIN | Aligns converter to input shaft |
| 0769123894 | TYPE PLATE | Identifies transmission model and specs |
| 4660221012 | SUCTION TUBE | Delivers ATF from sump to converter |
| 0634100317 | O-RING | Seals converter-to-housing connection |
| 0636103273 | CAP SCREW | Secures converter to flexplate |
| 0750100022 | SCREW PLUG | Closes hydraulic test ports |
| 4660101804 | TRANSMISSION HOUSING | Alternate housing variant for WG series |
| 4660301008 | HOUSING | Secondary housing option for converter support |

