Overview
The ZF 4657.175.032 CLUTCH is a critical friction component engineered specifically for the WG 190 and WG 210 series transmissions. Positioned within the planetary gearset assembly, this OEM genuine part manages torque transfer between rotating shafts, enabling smooth gear engagement and disengagement under heavy load conditions. The SKU 4657.175.032 is precision-machined to factory tolerances, ensuring consistent hydraulic pressure application and minimal drag during operation. When paired with a properly functioning 4657120005: PRESSURE REGULATOR, this clutch maintains optimal clamping force across all temperature ranges.
Symptoms of Failure
- Delayed or harsh gear engagement — When the clutch pack wears, you may notice a pronounced lag or sudden “clunk” when shifting from neutral to drive, especially under load.
- Oil leaks near the drum housing — Worn sealing surfaces on the 4657.175.032 can cause transmission fluid to seep past the piston, leading to low pressure and visible drips.
- Gear slipping under acceleration — A failing clutch loses its friction coefficient, causing the transmission to momentarily lose power delivery during uphill climbs or heavy towing.
- Burning smell from overheated fluid — Slipping generates excessive heat, which degrades the ATF and produces a distinct acrid odor, often accompanied by dark, gritty fluid.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.175.032 |
| Material | Sintered bronze friction lining on steel core |
| Outer Diameter | 175 mm |
| Inner Diameter | 132 mm |
| Thickness | 2.8 mm (new) |
| Weight | 0.42 kg |
| OEM Reference | ZF 4657.175.032 |
| Operating Pressure | 12–18 bar |
Compatibility
This clutch is engineered for the ZF WG 191 Series and is directly compatible with the WG 190 and WG 210 transmission families. It also fits select variants of the WG 180 and WG 200 models when used with the correct 0630532183: INDENTED RING and 4656306145: PISTON. Always verify your transmission’s serial number before ordering. The 4657.175.032 is not backward-compatible with older WG 150 series units without a full drum assembly swap.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657120005 | PRESSURE REGULATOR | Controls hydraulic pressure to the clutch pack |
| 0501211384 | VALVE | Directs fluid flow for shift timing |
| 0630532183 | INDENTED RING | Secures clutch pack within the drum |
| 4656306145 | PISTON | Applies clamping force to the clutch plates |
| 0732042767 | COMPRESSION SPRING | Returns piston to neutral position |
| 0631612064 | SET SCREW | Adjusts valve travel limits |
| 0631610026 | SET SCREW | Secures pressure regulator housing |
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gearset |
| 4657301130 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657301131 | HOUSING REAR PART | Rear section of the transmission housing |
Frequently Asked Questions
Q: Can I install the 4657.175.032 clutch without replacing the 0501211384: VALVE?
A: While not mandatory, we strongly recommend replacing the valve simultaneously. Worn valves can cause pressure spikes that accelerate clutch wear, reducing the lifespan of your new part.
Q: What is the expected service life of this clutch in a WG 210?
A: Under normal operating conditions with proper fluid maintenance, the 4657.175.032 typically lasts 250,000–350,000 km. Heavy towing or frequent stop-and-go operation may reduce this interval.
Q: Does this part come with a warranty?
A: As an OEM genuine ZF component, it carries the standard manufacturer warranty against material defects. Always inspect the friction surface for flatness before installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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