Overview
The ZF 4657.175.039 COUPLING is a precision-engineered OEM genuine component designed for the WG 190 and WG 210 transmission series. This coupling serves as the critical mechanical link between the transmission housing and the internal drive assembly, ensuring torque is transferred smoothly without vibration or misalignment. Located within the driveline interface, the SKU 4657.175.039 acts as a flexible connector that absorbs axial and radial loads, protecting adjacent components from stress fractures. When paired with the 4657101085: TRANSMISSION HOUSING, this coupling maintains structural integrity under high-cycle industrial operations.
Symptoms of Failure
When the ZF 4657.175.039 COUPLING begins to degrade, operators may notice these specific failure indicators:
- Transmission gear slipping under load: A worn coupling allows excessive play, causing intermittent power loss during acceleration or heavy lifting.
- Oil leaks near the bell housing: Deterioration of the coupling seal leads to fluid seepage, often mistaken for a housing gasket failure.
- Metallic rattling or clunking sounds: Loose coupling elements create audible noise during gear shifts or when the transmission is under torque.
- Vibration at specific RPM ranges: Imbalanced coupling wear transmits harmonic vibrations through the driveline, worsening over time.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.175.039 |
| Material | High-tensile alloy steel with rubber damping insert |
| Outer Diameter | 175 mm |
| Inner Bore Diameter | 39 mm |
| Weight | 2.8 kg |
| OEM Reference | ZF 4657.175.039 (Genuine) |
| Operating Temperature Range | -20°C to +120°C |
Compatibility
This coupling is engineered for the ZF WG 190 and WG 210 transmission series. It also fits select variants of the WG 180 and WG 200 models when used with the correct 4657201161: HOUS.FRONT SECT and 4657201162: HOUSING REAR PART. For heavy-duty applications, verify compatibility with the 4657298107: HOUSING REAR SECTION to ensure proper alignment. Always cross-reference your transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201161 | HOUS.FRONT SECT | Front section of transmission housing |
| 4657201162 | HOUSING REAR PART | Rear housing component for output shaft |
| 4657298107 | HOUSING REAR SECTION | Reinforced rear section for heavy loads |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for coupling installation |
| 0636100801 | CAP SCREW | Fastener for coupling retention |
| 4656301148 | FIXING PLATE | Secures coupling to housing flange |
| 4657301032 | SCREEN SHEET | Filter mesh for oil circulation |
| 4657301033 | SCREEN SHEET | Secondary filter screen for debris |
| 0636100803 | CAP SCREW | High-torque fastener for rear housing |
Frequently Asked Questions
Q: Can the ZF 4657.175.039 COUPLING be used in a WG 200 transmission?
Yes, it is compatible with WG 200 models when paired with the correct housing sections. Always verify the housing part numbers, such as the 4657201162: HOUSING REAR PART, to confirm fitment.
Q: What causes premature wear on this coupling?
Common causes include misaligned housing components, over-torquing of cap screws, or contamination from worn screen sheets. Inspect the 4657301032: SCREEN SHEET regularly to prevent debris damage.
Q: Is this coupling sold as a standalone part or with mounting hardware?
This listing is for the coupling only. For installation, we recommend ordering the 0636100801: CAP SCREW and 4656301148: FIXING PLATE separately to ensure a secure fit.
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Phone: +86 158 2286 3467 |
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