Overview
The ZF 4656.006.001 is a precision-engineered OEM genuine component specifically designed for the WG 115 series transmission. This part functions as a critical interface within the gear train assembly, ensuring precise alignment and load distribution during high-torque operations. As an original ZF part, the SKU 4656.006.001 guarantees exact fitment and metallurgical consistency, reducing the risk of premature wear in heavy-duty industrial applications. It is typically mounted adjacent to the TRANSMISSION HOUSING, where it works in concert with the HOUS.FRONT SECT to maintain structural integrity under continuous load cycles.
Symptoms of Failure
When the ZF 4656.006.001 begins to degrade, operators may notice specific performance issues. Oil seepage around the WG115 bell housing is a common early indicator, often accompanied by intermittent gear engagement hesitation during cold starts. As wear progresses, metallic grinding noises during gear shifts become audible, signaling misalignment between the HOUSING REAR PART and the main shaft. In severe cases, complete loss of hydraulic pressure can occur, leading to transmission slippage under load. These failure modes are frequently searched by technicians diagnosing “ZF WG115 shifting problems” or “transmission oil leak front section.”
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 4656.006.001 |
| Material | High-strength alloy steel (case-hardened) |
| Weight | 1.85 kg (4.08 lbs) |
| Outer Diameter | 112 mm |
| Inner Diameter | 68 mm |
| Height | 42 mm |
| OEM Reference | ZF 4656.006.001 (Genuine) |
| Hardness Rating | HRC 58-62 |
Compatibility
This OEM genuine part is engineered for the ZF WG 115 series, but its design principles extend to other modular ZF transmissions. It is directly compatible with the WG180, WG200, and WG211 models when used in conjunction with the correct HOUSING REAR PART. Additionally, it fits select WG120 and WG150 variants that share the same spline geometry. Always verify the housing configuration—the HOUS.FRONT SECT must match the revision level of your transmission to ensure proper oil channel alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201036 | HOUSING REAR PART | Rear housing section for output bearing retention |
| 4472239179 | HOUSING REAR PART | Alternate rear housing variant for WG115 |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 4656301148 | FIXING PLATE | Secures bearing preload in the gear train |
| 0636100817 | CAP SCREW | High-tensile fastener for housing bolts |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M10 bolt for front housing attachment |
Frequently Asked Questions
Q: Can the ZF 4656.006.001 be used in a WG200 transmission without modification?
A: Yes, it is mechanically compatible with the WG200, but you must also replace the HOUS.FRONT SECT to match the updated oil gallery layout. Always consult the ZF service bulletin for your specific serial number.
Q: What is the typical service interval for this part in a WG115?
A: Under normal industrial duty (8-10 hours/day), replacement is recommended every 4,000 operating hours or during a major transmission overhaul. Symptoms like oil seepage around the TRANSMISSION HOUSING indicate earlier replacement may be needed.
Q: Does this part require special tools for installation?
A: Yes, a hydraulic press and a bearing puller set are required to avoid damaging the precision-ground surfaces. The CYLINDRICAL PIN must be aligned within 0.02 mm tolerance to prevent premature wear.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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