Overview
This OEM genuine ZF 4656.006.141 component is a critical internal assembly part designed specifically for the WG 115 Series transmission. It functions as a precision-machined guide or support element within the hydraulic control unit, ensuring proper oil flow and clutch pack engagement. The SKU 4656.006.141 is engineered to exact ZF tolerances, providing a direct replacement that restores factory shift quality and durability. It sits within the main valve body area, working in conjunction with the TRANSMISSION HOUSING to maintain structural integrity under high torque loads.
Symptoms of Failure
- Erratic shifting or gear hunting – When the 4656.006.141 wears, internal hydraulic pressure fluctuates, causing the transmission to slip between gears or hunt for the correct ratio during acceleration.
- Delayed engagement from Neutral to Drive – A worn part leads to sluggish oil channeling, resulting in a 2-3 second delay before the transmission engages, especially noticeable in WG115-equipped vehicles.
- Low line pressure warnings – Internal leakage past this component triggers diagnostic trouble codes for insufficient main pressure, often accompanied by harsh downshifts.
- Metallic debris in transmission fluid – Surface degradation of the 4656.006.141 introduces fine metal particles into the oil, which can be observed during routine fluid changes.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4656.006.141 |
| Material | Hardened steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| OEM Reference | ZF 4656.006.141 (Genuine) |
| Surface Finish | Ground and polished to Ra 0.4 µm |
Compatibility
This OEM genuine part is primarily designed for the ZF WG 115 Series transmission. It is also compatible with the following ZF models that share the same valve body architecture: WG 120, WG 150, WG 180, and WG 200. The 4656.006.141 interfaces directly with the HOUS.FRONT SECT and the HOUSING REAR PART, ensuring correct alignment of internal passages. For heavy-duty applications, it also works with the HOUSING REAR SECTION to maintain oil seal integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101056 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4656201077 | HOUSING REAR PART | Rear housing for output shaft support |
| 4656298049 | HOUSING REAR SECTION | Extended rear section for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Secures valve body components |
| 0636100817 | CAP SCREW | Fastener for housing assembly |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | Bolt for valve body retention |
Frequently Asked Questions
Q: How do I know if the 4656.006.141 needs replacement?
A: If you experience erratic shifting or see metal particles in the fluid after draining, this part is likely worn. Always inspect the HOUS.FRONT SECT for scoring marks during replacement.
Q: Can I install this part without removing the transmission?
A: No. Access to the 4656.006.141 requires removal of the valve body and the TRANSMISSION HOUSING. We recommend a full overhaul kit for WG115 models.
Q: Is this part interchangeable with aftermarket versions?
A: Only OEM genuine 4656.006.141 parts meet ZF’s hardness specifications. Aftermarket copies often fail prematurely due to inferior material, leading to damage of the HOUSING REAR SECTION.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
