Overview
The ZF 4656.006.306 is a precision-engineered OEM genuine part specifically designed for the WG 115 Series transmission. This component plays a critical role in managing hydraulic flow and pressure within the transmission’s valve body assembly, ensuring smooth gear engagement and consistent power delivery. As an integral element of the shift control system, the 4656.006.306 works in concert with the TRANSMISSION HOUSING to maintain structural integrity and fluid routing. The SKU 4656.006.306 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty industrial applications.
Symptoms of Failure
- Erratic gear engagement or delayed shifting — When the 4656.006.306 wears, hydraulic pressure fluctuations cause hesitation between gear changes, especially under load.
- Transmission fluid seepage near the valve body — Degraded sealing surfaces on this part lead to oil leaks that appear as drips or wet spots on the HOUS.FRONT SECT.
- Intermittent loss of drive or gear slipping — Internal wear reduces clamping force, causing the transmission to momentarily lose power during acceleration or incline climbing.
- Unusual whining or buzzing noises from the transmission — Cavitation or restricted fluid flow through the worn 4656.006.306 creates audible hydraulic turbulence.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4656.006.306 |
| Material | High-strength aluminum alloy with hardened steel inserts |
| Weight | 1.45 kg (3.2 lbs) |
| Dimensions (L x W x H) | 185 mm x 95 mm x 55 mm |
| Operating Pressure Range | 8–22 bar (116–319 psi) |
| OEM Reference | ZF WG 115 Series |
| Seal Type | Nitrile rubber O-ring (included) |
Compatibility
This genuine ZF 4656.006.306 component is engineered for the WG 115 transmission series. It is also compatible with select models in the WG180 and WG200 families that share the same valve body architecture. The part interfaces directly with the HOUSING REAR PART and the HOUSING REAR SECTION to form a sealed hydraulic circuit. Always verify your transmission’s serial number against ZF’s compatibility charts before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101075 | TRANSMISSION HOUSING | Main structural casing that encloses gear sets and fluid passages |
| 4656201085 | HOUS.FRONT SECT | Front section housing that supports input shaft and pump assembly |
| 4656201094 | HOUSING REAR PART | Rear housing component that aligns output shaft bearings |
| 4656298060 | HOUSING REAR SECTION | Secondary rear housing section for auxiliary drive connections |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 4656301148 | FIXING PLATE | Retention plate securing valve body components |
| 0636100817 | CAP SCREW | M10 fastener for housing-to-valve body attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid debris protection |
| 4656301017 | SCREEN SHEET | Secondary filter screen for high-pressure circuits |
| 0636100803 | CAP SCREW | M8 fastener for securing screen sheets and covers |
Frequently Asked Questions
Q: How do I know if the 4656.006.306 is the correct part for my WG115 transmission?
A: Check the stamped serial number on your transmission’s data plate. The 4656.006.306 is used exclusively in WG115 models with valve body revision C or later. If your unit has a different revision, consult ZF’s cross-reference guide.
Q: Can I install this part without removing the entire transmission?
A: Yes, the 4656.006.306 is accessible after removing the transmission oil pan and valve body cover. However, we recommend replacing the FIXING PLATE and all CAP SCREW fasteners simultaneously to ensure proper torque retention.
Q: What is the typical service life of this OEM part?
A: Under normal operating conditions with proper fluid maintenance, the 4656.006.306 lasts approximately 8,000–10,000 operating hours. Premature failure often results from contaminated hydraulic fluid or over-pressurization.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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