Overview
This OEM genuine ZF 4657.130.066 is a critical internal component engineered specifically for the WG190 and WG210 series transmissions. It functions as a precision-machined guide or spacer element within the planetary gear set, ensuring correct axial alignment and load distribution during torque transfer. The SKU 4657.130.066 sits directly between the main shaft and the clutch pack assembly, where it maintains consistent oil flow to the friction discs. Without this part, the transmission cannot sustain proper gear engagement under heavy-duty industrial loads.
Symptoms of Failure
- Intermittent gear slipping under load — When the 4657.130.066 wears, the planetary gear set loses axial preload, causing the clutches to slip during acceleration or hill climbing.
- Metallic debris in transmission fluid — A worn part sheds fine steel particles into the oil circuit, often visible during routine drain intervals.
- Erratic shift timing — The valve body receives incorrect hydraulic feedback, leading to delayed or harsh shifts between forward gears.
- Low oil pressure warnings — Internal leakage past the worn component reduces system pressure, triggering dashboard alerts on ZF-equipped machinery.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.130.066 |
| Material | Case-hardened alloy steel (16MnCr5) |
| Outer Diameter | 68.4 mm |
| Inner Diameter | 42.0 mm |
| Thickness | 12.7 mm |
| Weight | 0.185 kg |
| Surface Treatment | Phosphate coating + oil impregnation |
| OEM Reference | ZF 4657.130.066 (genuine) |
Compatibility
This genuine ZF 4657.130.066 is designed for the WG190 and WG210 transmission families. It also fits select variants of the WG180, WG200, and WG220 series where the planetary carrier and clutch housing share identical bore dimensions. Always verify the transmission serial number against ZF’s parts catalog before installation. The part is not compatible with WG150 or WG250 series units without adapter modifications.
During a full rebuild, this component is typically installed alongside the 4657101033: TRANSMISSION HOUSING, which encloses the entire gearset. The 4657201027: HOUS.FRONT SECT and 4657201012: HOUSING REAR PART must be properly aligned to prevent binding. A 0631306792: CYLINDRICAL PIN is used to index the assembly during torque-down procedures.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gearset and shafts |
| 4657201027 | HOUS.FRONT SECT | Front section housing the input shaft bearing |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft and PTO |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | M10 bolt securing housing halves |
| 4656301148 | FIXING PLATE | Retains clutch piston in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M8 bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to clutch pack |
Frequently Asked Questions
Q: Can the 4657.130.066 be reused after a transmission overhaul?
A: No. This is a wear-critical component. ZF recommends replacement with a new OEM part during any rebuild to avoid premature failure of the planetary gear set.
Q: What tools are needed to install this part?
A: You will need a bearing press, snap-ring pliers, and a torque wrench calibrated to ZF specifications. The 0631306792: CYLINDRICAL PIN must be driven in with a brass drift to avoid galling.
Q: Does this part fit the ZF WG210 with a PTO?
A: Yes, the 4657.130.066 is compatible with both standard and PTO-equipped WG210 variants, provided the rear housing is the 4657201012: HOUSING REAR PART.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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