Overview
This OEM genuine ZF 4656.006.111 is a critical internal component engineered specifically for the WG 115 series transmission. It functions as a precision-machined guide or spacer element within the hydraulic control unit, ensuring correct oil flow and pressure regulation during gear shifts. The SKU 4656.006.111 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty commercial and industrial drivetrains. When installed alongside the TRANSMISSION HOUSING (4656101057), it helps maintain the structural integrity of the valve body assembly.
Symptoms of Failure
- Erratic shifting or delayed engagement: A worn 4656.006.111 can cause inconsistent hydraulic pressure, leading to harsh or hesitant gear changes.
- Internal oil leaks around the control bore: Deterioration of this part may allow transmission fluid to bypass seals, resulting in low line pressure and puddles under the vehicle.
- Transmission slipping under load: When this component fails to maintain proper clearance, clutch packs may not fully engage, causing power loss during acceleration.
- Unusual whining or grinding noises: Metal fatigue or deformation of the part can create abnormal contact with adjacent sleeves, producing audible distress from the transmission casing.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4656.006.111 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Outer Diameter | 38.5 mm (approx.) |
| Inner Diameter | 18.0 mm (approx.) |
| Length / Height | 42.0 mm (approx.) |
| Weight | 0.12 kg (0.26 lbs) |
| OEM Reference | ZF WG 115 series |
Compatibility
This genuine ZF 4656.006.111 is primarily designed for the WG 115 transmission series. It is also compatible with the WG 180, WG 200, and WG 250 series when used in the same hydraulic control bore position. Always verify fitment by cross-referencing the part number with your transmission’s serial plate. For complete assembly, this part works in conjunction with the HOUS.FRONT SECT (4656201075) and the HOUSING REAR PART (4656201078) to seal the main valve body cavity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101057 | TRANSMISSION HOUSING | Main casing that encloses the gear train and valve body |
| 4656201075 | HOUS.FRONT SECT | Front section of the transmission housing for pump mounting |
| 4656201078 | HOUSING REAR PART | Rear housing section supporting output shaft bearings |
| 4656298050 | HOUSING REAR SECTION | Additional rear housing component for extended gear sets |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing assembly |
| 4656301148 | FIXING PLATE | Retains valve body components in position |
| 0636100817 | CAP SCREW | Fastener for securing housing sections |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4656301017 | SCREEN SHEET | Secondary filter screen for oil return circuit |
| 0636100803 | CAP SCREW | Bolt for valve body cover attachment |
Frequently Asked Questions
Q: How do I know if the 4656.006.111 needs replacement?
A: If you experience delayed engagement or visible oil leaks near the valve body bore, inspect this part for scoring or deformation. Replacing it with the OEM genuine part restores proper hydraulic sealing.
Q: Can I use this part in a ZF WG 200 transmission?
A: Yes, the 4656.006.111 is compatible with WG 180, WG 200, and WG 250 series transmissions, provided it is installed in the same control bore position as the WG 115.
Q: What other parts should I replace at the same time?
A: It is recommended to also replace the SCREEN SHEET (4656301016) and the CAP SCREW (0636100803) to ensure a complete seal and clean hydraulic circuit.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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