Overview
The ZF 4168.034.111 CONVERTER Torque Converter Assembly is a complete, direct-replacement unit engineered to manage hydraulic torque multiplication within ZF WG-series powershift transmissions. Positioned between the engine flywheel and the transmission input shaft, this assembly converts rotational energy into hydraulic force, enabling smooth power delivery under heavy loads. The SKU 4168.034.111 is a fully assembled unit, eliminating the need for complex sub-component matching. For optimal structural integrity, this converter mounts directly against the 4657101033: TRANSMISSION HOUSING, which provides the rigid foundation for the entire drivetrain assembly.
Symptoms of Failure
- Torque converter shudder during low-speed maneuvering: A pronounced vibration or “chuggle” when accelerating from a stop or creeping in first gear indicates worn internal stator bearings or damaged clutch friction surfaces.
- Delayed engagement or “flare” when shifting: If the engine revs rise noticeably before the transmission engages a gear, the converter’s lock-up clutch or one-way clutch may be slipping, leading to inefficient power transfer.
- Contaminated transmission fluid with metallic debris: Dark, burnt-smelling oil mixed with fine metal particles often points to internal converter wear. This debris can migrate into the 4657201027: HOUS.FRONT SECT and damage adjacent valve bodies.
- Audible whining or grinding noise from the bell housing: A high-pitched whine that changes with engine RPM, not road speed, typically signals worn converter pump vanes or damaged thrust washers.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4168.034.111 |
| Assembly Type | Complete Torque Converter (Lock-up capable) |
| Overall Diameter | ~340 mm (estimated) |
| Weight | ~18.5 kg (40.8 lbs) |
| Primary Material | Cast aluminum housing with hardened steel turbine |
| OEM Reference | ZF 4168 034 111 |
| Bolt Torque Spec | 55 Nm (for flexplate attachment) |
Compatibility
This torque converter assembly is specifically designed for ZF WG-series powershift transmissions, including the WG 180, WG 190, WG 200, and WG 210 series. It is a direct fit for models commonly used in industrial loaders, forklifts, and agricultural tractors. The converter interfaces with the 4657201012: HOUSING REAR PART to seal the transmission cavity, and is secured using the 0631306792: CYLINDRICAL PIN for precise alignment during assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201027 | HOUS.FRONT SECT | Front section housing pump and converter |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing flanges |
| 4656301148 | FIXING PLATE | Retains converter stator shaft |
| 4657301032 | SCREEN SHEET | Filter mesh for oil return circuit |
| 4657301033 | SCREEN SHEET | Secondary filter for high-pressure oil |
| 0636100803 | CAP SCREW | Bolt for converter cover plate |
| 4681301040 | OIL FEED.HOUSG. | Distributes lubricating oil to converter |
Frequently Asked Questions
Q: Can I install this converter without replacing the transmission housing?
A: Yes, the 4168.034.111 is a standalone unit. However, we strongly recommend inspecting the TRANSMISSION HOUSING for cracks or warping, as misalignment will quickly destroy the new converter.
Q: What is the typical lifespan of this torque converter under heavy industrial use?
A: With proper maintenance and clean fluid, the ZF 4168.034.111 typically lasts 4,000–6,000 operating hours. Failure often accelerates if the SCREEN SHEET filters become clogged, restricting oil flow.
Q: Does this part include the flexplate or mounting bolts?
A: No, this is the converter assembly only. You will need separate cap screws such as 0636100801 and the FIXING PLATE for proper installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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