Overview
The ZF 4657.275.013 CLUTCH is a critical torque-transfer component engineered for the WG 190, WG 210, and related series of heavy-duty powershift transmissions. This OEM genuine part sits within the planetary gear set assembly, where it engages and disengages hydraulic pressure to lock specific gear trains. The SKU 4657.275.013 ensures precise clutch pack clearance and reliable engagement under high-load conditions. When installed, this clutch works in direct conjunction with the HOUS.FRONT SECT to contain hydraulic fluid and align the rotating elements. For a complete seal, the O-RING must be replaced simultaneously to prevent pressure loss.
Symptoms of Failure
- Delayed engagement or gear slipping: Worn friction material in the 4657.275.013 clutch causes the transmission to hesitate before moving or to slip under load, especially in forward gears.
- Erratic shift quality: As the clutch loses holding capacity, operators may experience harsh or unpredictable shifts, often accompanied by a momentary loss of drive power.
- Internal hydraulic leaks: Degraded seals around the clutch piston allow oil to bypass, leading to low system pressure and visible oil puddles near the bell housing.
- Burning smell or overheating: Slipping generates excessive friction heat, producing a distinct burnt oil odor and potential thermal damage to adjacent components like the CYLINDRICAL PIN.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4657.275.013 |
| OEM Reference | ZF 4657.275.013 |
| Material | Sintered bronze friction plates with steel separator plates |
| Outer Diameter | ~210 mm (estimated for WG 210 series) |
| Inner Diameter | ~140 mm |
| Total Thickness (pack) | ~28 mm |
| Weight | ~1.8 kg |
| Hydraulic Pressure Rating | 18–22 bar |
Compatibility
This clutch is designed for ZF WG-series powershift transmissions used in construction and agricultural machinery. It is a direct fit for the WG 190 Series, WG 191 Series, WG 210 Series, WG 211 Series, and WG 230 Series. It also serves the WG 180 and WG 200 models when used with the correct 螺栓 for mounting. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Houses the clutch pack and directs oil flow |
| 0636115293 | 螺栓 | Secures the clutch assembly to the housing |
| 0634313603 | O-RING | Seals hydraulic pressure within the clutch piston |
| 0631306816 | CYLINDRICAL PIN | Aligns clutch pack components during assembly |
| 0636100801 | CAP SCREW | Fastens the front housing section |
| 4656301148 | FIXING PLATE | Retains the clutch pack in position |
| 4657301032 | SCREEN SHEET | Filters debris from clutch hydraulic circuit |
| 4657301033 | SCREEN SHEET | Secondary filtration for oil feed passages |
| 0636100803 | CAP SCREW | Mounts the oil feed housing |
| 4656301047 | OIL FEED.HOUSG. | Distributes pressurized oil to the clutch |
Frequently Asked Questions
Q: How do I know if my ZF WG 210 needs the 4657.275.013 clutch?
A: If you experience slipping in forward gears or a delayed reverse engagement, and you have verified low clutch pack clearance, this part is the likely culprit. Always inspect the O-RING for wear during replacement.
Q: Can I reuse the old 螺栓 when installing this clutch?
A: No. ZF recommends always replacing the 螺栓 with new ones to ensure proper torque retention and prevent fastener fatigue.
Q: Is the 4657.275.013 compatible with the WG 180 transmission?
A: Yes, but you must also replace the CYLINDRICAL PIN and verify the housing alignment using the HOUS.FRONT SECT for proper fitment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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