Overview
The ZF 4656.175.065 is a critical OEM genuine component engineered specifically for the WG115 and WG160 series transmissions. This part functions as a precision-machined guide or alignment element within the transmission housing assembly, ensuring correct axial positioning of rotating shafts and gear sets. The SKU 4656.175.065 is manufactured to ZF’s exacting tolerances, directly supporting the structural integrity of the gearbox. It sits between the main housing sections, interfacing with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain precise gear mesh alignment under heavy loads.
Symptoms of Failure
- Oil seepage at housing joints – When the 4656.175.065 wears or distorts, it can compromise the seal between the HOUSING REAR PART and the front section, leading to visible fluid leaks around the transmission bell housing.
- Intermittent gear engagement noise – A worn part allows micro-movement of internal components, producing a distinct clattering or grinding sound during gear changes, especially under torque.
- Vibration during acceleration – Loss of dimensional stability in this part causes shaft misalignment, resulting in low-frequency vibrations felt through the chassis when the transmission is under load.
- Premature bearing wear – Misalignment forces excessive radial load on adjacent bearings, drastically reducing their service life and increasing maintenance frequency.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4656.175.065 |
| Material | High-strength alloy steel, induction-hardened |
| Weight | 0.85 kg (1.87 lbs) |
| Outer Diameter | 65 mm |
| Length | 175 mm |
| Surface Finish | Black oxide with phosphate coating |
| OEM Reference | ZF 4656.175.065 (Genuine) |
Compatibility
This genuine ZF part is designed for the WG115 and WG160 transmission series. It is also compatible with the WG180 and WG200 models where the same housing architecture is used. The 4656.175.065 interfaces directly with the HOUSING REAR SECTION and is essential for any rebuild involving the main case assembly. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101075 | TRANSMISSION HOUSING | Main structural casing for gear and shaft assembly |
| 4656201085 | HOUS.FRONT SECT | Front section housing for input shaft and clutch pack |
| 4656201094 | HOUSING REAR PART | Rear housing section supporting output shaft bearings |
| 4656298060 | HOUSING REAR SECTION | Complete rear housing assembly with integrated oil passages |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 4656301148 | FIXING PLATE | Retains bearing and shaft axial position |
| 0636100817 | CAP SCREW | High-tensile fastener for housing sections |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil sump intake |
| 4656301017 | SCREEN SHEET | Secondary filter screen for return oil circuit |
| 0636100803 | CAP SCREW | M10 bolt for securing filter screens |
Frequently Asked Questions
Q: Can the 4656.175.065 be reused during a transmission rebuild?
A: ZF recommends replacing this part with a new OEM unit during any major overhaul. The hardened surface can develop microscopic wear that is not visible but will affect alignment precision.
Q: Does this part require special tools for installation?
A: Yes, a press tool and a dial indicator are recommended to verify correct seating depth. The part must be installed square to the housing bore to avoid stress on the HOUS.FRONT SECT interface.
Q: Is the 4656.175.065 interchangeable between WG115 and WG160 transmissions?
A: Yes, the part is identical for both series. However, always check that the HOUSING REAR SECTION on your specific unit matches the revision level of this component.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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