Overview
The ZF 4656.006.134 is a precision-engineered OEM genuine component designed specifically for the WG115 transmission series. This part serves as a critical internal sealing and alignment element within the gear train assembly, ensuring proper hydraulic pressure distribution and rotational stability. The SKU 4656.006.134 is manufactured to ZF’s exacting tolerances, making it essential for maintaining factory-specified performance in heavy-duty industrial applications. It interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to create a sealed environment for the planetary gear sets.
Symptoms of Failure
- Oil leaks around the transmission housing joint: When the 4656.006.134 wears, pressurized ATF can escape between the HOUSING REAR PART and the main casing, leading to visible drips and low fluid levels.
- Erratic gear engagement under load: A degraded component causes inconsistent clutch pack pressure, resulting in delayed or harsh shifting during heavy-duty operation.
- Metallic debris in the transmission pan: Excessive wear on this part generates fine metal particles that contaminate the fluid and accelerate damage to the HOUSING REAR SECTION.
- Vibration during torque converter lockup: Loss of structural integrity in the 4656.006.134 allows misalignment that produces low-frequency shuddering at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.006.134 |
| Material | Hardened alloy steel (nitrided) |
| Outer Diameter | 112.5 mm |
| Inner Diameter | 68.3 mm |
| Thickness | 18.2 mm |
| Weight | 0.47 kg |
| Surface Finish | Ground and polished (Ra 0.4) |
Compatibility
This OEM genuine part is primarily engineered for the ZF WG115 series transmissions. It is also compatible with select models in the WG180 and WG200 families that share the same internal architecture. The 4656.006.134 is not interchangeable with earlier WG110 or later WG250 variants without modification. Always verify your transmission’s serial number against the ZF parts catalog before installation. When replacing this component, technicians commonly inspect the TRANSMISSION HOUSING for cracks and the HOUS.FRONT SECT for wear patterns.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101057 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing pump and converter |
| 4656201078 | HOUSING REAR PART | Rear cover for output shaft support |
| 4656298050 | HOUSING REAR SECTION | Extended rear housing for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Retains bearing preload adjustment |
| 0636100817 | CAP SCREW | M10 bolt for housing fastening |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M8 bolt for accessory mounting |
Frequently Asked Questions
Q: How do I know if the 4656.006.134 needs replacement?
A: Inspect for radial play in the output shaft and check for fluid seepage around the HOUSING REAR PART seam. If you measure more than 0.15 mm of axial movement, replacement is recommended.
Q: Can this part be reused after a transmission rebuild?
A: No. ZF specifies that the 4656.006.134 must be replaced with a new OEM unit during any major overhaul due to its crush-type sealing design that deforms during initial installation.
Q: Is the 4656.006.134 compatible with aftermarket housings?
A: It is designed exclusively for OEM ZF castings. Using it with non-genuine TRANSMISSION HOUSING units may cause improper sealing and void warranty coverage.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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