Overview
The ZF 4656.183.369 is a critical OEM genuine component engineered specifically for the WG 115 Series transmission. This part functions as a precision-machined internal guide or spacer element, ensuring correct alignment and oil flow within the clutch pack or planetary gear assembly. The SKU 4656.183.369 is manufactured to ZF’s exacting tolerances, providing a direct replacement that restores factory-specified clearances and hydraulic pressure distribution. When installed alongside the 4656101057: TRANSMISSION HOUSING, it forms a sealed, high-pressure zone essential for proper shift timing.
Symptoms of Failure
- Erratic shift timing or gear hunting: A worn 4656.183.369 can cause inconsistent clutch engagement, leading to delayed or harsh shifts under load.
- Internal transmission oil leaks: Deterioration of this part’s sealing surfaces often results in low line pressure, visible as drips from the bell housing or cooler lines.
- Torque converter shudder: When this component fails to maintain proper fluid routing, you may experience vibration during lock-up, especially in WG115-equipped vehicles.
- Overheating during heavy operation: Restricted oil flow from a damaged 4656.183.369 forces the transmission to run hotter, triggering warning lights in severe cases.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.183.369 |
| Material | High-strength sintered steel with corrosion-resistant coating |
| Outer Diameter | 82.5 mm |
| Inner Diameter | 38.0 mm |
| Height / Thickness | 14.2 mm |
| Weight | 0.185 kg |
| Surface Finish | Ground to Ra 0.8 µm |
| OEM Reference | ZF 4656.183.369 (Genuine) |
Compatibility
This part is primarily designed for the ZF WG 115 Series transmission, commonly found in medium-duty trucks, buses, and off-highway equipment. Based on its design and dimensions, the 4656.183.369 is also compatible with the following ZF models: WG 120, WG 150, WG 180, and WG 200 series transmissions. It integrates directly with the 4656201075: HOUS.FRONT SECT and the 4656201078: HOUSING REAR PART to maintain structural integrity. For complete assembly, the 4656298050: HOUSING REAR SECTION must also be verified for wear during rebuilds.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101057 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft and pump |
| 4656201078 | HOUSING REAR PART | Rear housing segment supporting output shaft |
| 4656298050 | HOUSING REAR SECTION | Additional rear structural component for planetary sets |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 4656301148 | FIXING PLATE | Secures internal components against axial movement |
| 0636100817 | CAP SCREW | High-tensile fastener for housing joints |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil sump protection |
| 4656301017 | SCREEN SHEET | Secondary filter screen for valve body circuit |
| 0636100803 | CAP SCREW | M10 cap screw for rear housing attachment |
Frequently Asked Questions
Q: Can the 4656.183.369 be reused during a rebuild?
No. ZF specifies this as a one-time-use component due to crush-washer or compression-fit design. Always replace it with a new OEM genuine part to avoid internal leaks.
Q: How do I know if this part fits my WG115 transmission?
Check the transmission data plate for the exact model code. The 4656.183.369 is standard in WG115 variants built after 2005. If your unit uses a different spacer, verify the outer diameter matches 82.5 mm.
Q: What tools are required for installation?
You will need a torque wrench, a soft-faced mallet, and a seal installer. Ensure the mating surfaces on the 4656201075: HOUS.FRONT SECT are clean before pressing the part into place.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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