Overview
The ZF 4168.030.097 CONVERTER Torque Converter Assembly is a critical hydraulic coupling component that transfers engine torque to the transmission input shaft within the WG 100 Series gearbox family. This complete unit, identified by SKU 4168.030.097, sits between the engine flywheel and the transmission housing, using a stator, turbine, and impeller to multiply torque during low-speed operation. As a sealed assembly, it directly influences shift quality and overall driveline efficiency. When replacing this converter, technicians often inspect the adjacent 4651101007: TRANSMISSION HOUSING for cracks or wear, as misalignment can accelerate converter failure.
Symptoms of Failure
- Torque converter shudder at low speeds: A persistent vibration during acceleration from a stop, often misdiagnosed as a transmission mount issue.
- Delayed engagement or gear slipping: The transmission hesitates before moving forward or reverse, indicating worn internal clutch surfaces inside the converter.
- Contaminated transmission fluid with metallic debris: Fine metal particles in the oil pan signal that the converter’s needle bearings or thrust washers are disintegrating.
- Overheating transmission under load: A failing stator clutch causes excessive heat generation, leading to burnt fluid odor and potential damage to the 4651301029: HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4168.030.097 |
| Assembly Type | Complete Torque Converter (Lock-up capable) |
| Outer Diameter | ~340 mm (13.4 in) |
| Weight | ~18.5 kg (40.8 lbs) |
| Housing Material | Cast steel with hardened hub |
| OEM Reference | ZF 4168.030.097 / WG100 |
| Fluid Capacity | ~2.1 liters (ATF Dexron III) |
| Mounting Bolt Torque | 45 Nm (33 ft-lbs) |
Compatibility
This torque converter assembly is engineered for the ZF WG 100 Series of powershift transmissions, specifically models including WG180, WG200, and WG210. It is also compatible with certain variants of the WG120 and WG150 when used in industrial equipment such as forklifts, loaders, and telehandlers. Always verify the bellhousing pattern and pilot bore alignment. During installation, ensure the 0634303928: O-RING is replaced to prevent fluid bypass, and confirm the 4651301024: HOUSING is free of scoring.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101007 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4651301029 | HOUSING | Rear cover for converter section |
| 0634303928 | O-RING | Seals converter-to-housing joint |
| 4651301024 | HOUSING | Intermediate housing adapter plate |
| 4651203002 | SCREEN SHEET | Filter mesh for oil pump intake |
| 4651303005 | SCREEN SHEET | Secondary filtration element |
| 0636101032 | CAP SCREW | Fastener for housing assembly |
| 0630361028 | SEALING CAP | Closes test ports on housing |
| 4475280060 | SCREW PLUG | Drain or fill port plug |
| 0634303312 | O-RING | Seals screw plug threads |
