Overview
The ZF 4166.035.160 CONVERTER Torque Converter Assembly is a critical hydraulic coupling unit that transfers engine torque to the transmission input shaft in ZF WG 200 series drivelines. This complete unit, identified by SKU 4166.035.160, sits between the engine flywheel and the transmission pump, multiplying torque during launch and providing smooth power delivery. It is a direct replacement assembly designed to restore original lock-up and stall characteristics in heavy-duty industrial applications.
Symptoms of Failure
When the torque converter wears out, operators often notice shuddering during acceleration or a delayed engagement when shifting from neutral to drive. Another common failure sign is transmission overheating due to excessive converter slippage, which can be detected by rising temperature gauges. Additionally, contaminated transmission fluid with metallic debris indicates internal wear of the converter’s stator or turbine. These symptoms directly impact machine productivity and require immediate attention.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4166.035.160 |
| Assembly Type | Complete Torque Converter Unit |
| Overall Diameter | ~340 mm (estimated) |
| Input Spline Count | 14-tooth (standard ZF pattern) |
| Housing Material | High-strength cast iron |
| Weight | ~28 kg (61.7 lbs) |
| OEM Reference | ZF 4166.035.160 |
Compatibility
This converter assembly is engineered for the ZF WG 200 Series transmissions, including models WG180, WG200, and WG211. It is also compatible with select WG 150 Series variants that share the same bell housing pattern. Always verify your transmission model and serial number before installation to ensure proper fitment.
Related Components
During installation, several companion parts are commonly replaced together. The 4644105424 DISCONNECTION unit separates the converter from the engine, while the 4644303538 OUTPUT FLANGE connects the transmission to the driveshaft. Secure mounting requires the 0636021036 HEXAGON SCREW, and the entire assembly is protected by the 4644101224 TRANSMISSION HOUSING. For a complete overhaul, consider these additional parts:
| Part Number | Name | Function |
|---|---|---|
| 4644105424 | DISCONNECTION | Separates converter from engine |
| 4644303538 | OUTPUT FLANGE | Connects to driveshaft |
| 0636021036 | HEXAGON SCREW | Fastens converter assembly |
| 4644101224 | TRANSMISSION HOUSING | Encloses gear train |
| 4644301346 | TRANSMISSION HOUSING | Alternate housing variant |
| 0730365067 | TYPE PLATE | Identification label |
| 4644106300 | SHIFT SYSTEM | Controls gear selection |
| 4644306500 | COVER PLATE | Seals transmission housing |
| 4644159311 | SHIFT SYSTEM | Secondary shift mechanism |
| 4644306563 | VALVE BLOCK | Hydraulic pressure regulation |
