Overview
The ZF 4657.271.010 COUPLING is a critical torque-transfer component engineered specifically for the WG 190 and WG 210 series transmissions. This OEM genuine part sits directly between the engine flywheel and the transmission input shaft, acting as a flexible dampener that absorbs torsional vibrations and ensures smooth power delivery. The SKU 4657.271.010 is precision-machined to ZF’s original specifications, guaranteeing a direct bolt-on replacement without modifications. When installed alongside the 4657101039: TRANSMISSION HOUSING, it forms the primary driveline interface that protects downstream gearsets from shock loads.
Symptoms of Failure
- Torque converter shudder during acceleration: A worn coupling causes noticeable vibration or shudder when the vehicle moves from a stop, especially under heavy load. This is a common long-tail search query for “ZF WG190 coupling shudder fix.”
- Oil leaks at the bell housing seam: Deterioration of the coupling’s internal seal leads to transmission fluid seeping past the 4657201028: HOUS.FRONT SECT interface, leaving visible drips under the vehicle.
- Delayed or harsh gear engagement: When the coupling loses its dampening capacity, drivers experience a jarring “clunk” when shifting from Park to Drive or Reverse, as the transmission slams into gear.
- Metallic rattling from the bell housing: Broken internal springs or worn splines produce a distinct rattling noise at idle, worsening as the coupling degrades further.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.271.010 |
| Outer Diameter | 310 mm (estimated) |
| Inner Spline Diameter | 45 mm (estimated) |
| Material | High-tensile steel with rubber dampener |
| Weight | 4.2 kg (estimated) |
| OEM Reference | ZF 4657.271.010 |
| Torque Capacity | 1,200 Nm (estimated) |
Compatibility
This coupling is designed for ZF WG 190 and WG 191 series transmissions, which are commonly found in medium-duty trucks, buses, and off-highway equipment. It also fits the WG 180, WG 200, and WG 210 variants when used with the correct 4657201013: HOUSING REAR PART. Always verify that the 0631306792: CYLINDRICAL PIN aligns properly during installation to prevent misalignment. The part is not compatible with ZF 4HP or 6HP passenger car transmissions.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201028 | HOUS.FRONT SECT | Front section housing the torque converter |
| 4657201013 | HOUSING REAR PART | Rear housing supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for coupling attachment |
| 4656301148 | FIXING PLATE | Retains coupling in correct position |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | Secondary fastener for housing |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing |
Frequently Asked Questions
Q: How do I know if my ZF WG190 coupling needs replacement?
A: If you experience shuddering during acceleration or hear metallic rattling from the bell housing, inspect the coupling for worn splines or cracked rubber dampeners. A visual check for oil leaks near the HOUS.FRONT SECT is also a strong indicator.
Q: Can I reuse the old CYLINDRICAL PIN when installing a new coupling?
A: No. ZF recommends always replacing the 0631306792: CYLINDRICAL PIN during coupling service to ensure precise alignment and prevent premature wear.
Q: Is the 4657.271.010 coupling compatible with the ZF WG 210 transmission?
A: Yes, it is fully compatible with both WG 190 and WG 210 series, provided you also verify the HOUSING REAR PART matches your specific transmission variant.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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