Overview
The ZF 4168.030.113 CONVERTER Torque Converter Assembly is a critical hydraulic coupling component within the WG 150 Series transmission system. This complete unit transfers engine torque to the transmission input shaft while multiplying rotational force during low-speed operation. As a sealed assembly, it contains the stator, turbine, and impeller that manage fluid flow for smooth power delivery. The SKU 4168.030.113 is engineered specifically for heavy-duty industrial applications where consistent load handling is essential. This torque converter sits between the engine flywheel and the transmission housing, directly interfacing with the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING to form a sealed drivetrain unit.
Symptoms of Failure
- Delayed or harsh engagement: When the torque converter fails, operators notice a significant lag between shifting and actual gear engagement, often accompanied by a shuddering sensation during acceleration.
- Transmission fluid overheating: A worn converter causes excessive slippage, generating abnormal heat that can be detected through dashboard temperature warnings or burnt fluid odor.
- Stall speed irregularities: If the engine reaches higher RPMs than normal before the vehicle moves, or fails to reach proper stall speed, the converter’s internal stator or one-way clutch has likely degraded.
- Fluid contamination with metallic debris: Internal wear from the converter’s friction surfaces releases fine metal particles into the transmission fluid, visible during routine fluid checks.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4168.030.113 |
| Assembly Type | Complete Torque Converter Unit |
| Overall Diameter | 340 mm (13.4 in) |
| Weight | 18.5 kg (40.8 lbs) |
| Housing Material | Cast Steel with Heat-Treated Friction Surface |
| OEM Reference | ZF 4168.030.113 |
| Torque Capacity | Up to 1,200 Nm |
| Pilot Diameter | 65 mm |
| Bolt Pattern | 8 x M10 on 200 mm PCD |
Compatibility
This torque converter assembly is designed for the ZF WG 150 Series, but it also fits select models in the WG 180 and WG 200 families when used with the correct adapter components. Specifically, it is compatible with ZF WG150, WG180, and WG200 transmissions found in industrial loaders, forklifts, and agricultural tractors. For proper installation, ensure the 0730365125: TYPE PLATE matches your transmission model, and use the 0631311009: GROOVED STUD for secure mounting. Always verify bellhousing alignment with your specific engine flywheel configuration.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Encloses gear train and supports torque converter |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG series |
| 0730365125 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Mounting fastener for converter housing |
| 4642301168 | SCREEN SHEET | Filter screen for transmission fluid intake |
| 4642301169 | SCREEN SHEET | Secondary fluid filtration screen |
| 0636100621 | HEXAGON SCREW | Bolt for securing transmission components |
| 4642301186 | SCREEN SHEET | Fine mesh screen for hydraulic circuit |
| 4644106085 | SHIFT SYSTEM | Hydraulic valve body for gear selection |
| 4642306050 | COVER PLATE | Protective cover for transmission access port |
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