Overview
The ZF 4656.056.060 is a precision-engineered OEM genuine component designed specifically for the WG 160 Series transmission. This part functions as a critical internal guide and support element within the gear train assembly, ensuring precise alignment of rotating shafts and maintaining optimal gear mesh under high-torque conditions. As a factory-spec replacement, the SKU 4656.056.060 directly interfaces with the TRANSMISSION HOUSING to stabilize load paths and reduce vibrational stress. Without this component, the transmission cannot maintain its structural integrity during heavy-duty commercial operations.
Symptoms of Failure
- Oil leaks near the bell housing: A worn 4656.056.060 can compromise the seal surface, allowing transmission fluid to weep from the joint between the housing sections.
- Gear engagement hesitation: When this part loses dimensional tolerance, operators may notice delayed or grinding shifts, particularly when moving between 3rd and 4th gear.
- Abnormal whining noise under load: As the component fatigues, it permits micro-movement in the shaft assembly, generating a high-pitched metallic sound during acceleration.
- Vibration in the driveline: Excessive play in this guide element transfers harmonic oscillations through the HOUS.FRONT SECT, causing noticeable shudder at highway speeds.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4656.056.060 |
| Material | High-grade alloy steel (case-hardened) |
| Weight | 1.85 kg (4.08 lbs) |
| Surface Treatment | Zinc-nickel plated (corrosion resistant) |
| Operating Temperature Range | -40°C to +120°C |
| Hardness Rating | HRC 58-62 |
| OEM Reference | ZF 4656.056.060 (Genuine) |
Compatibility
This genuine ZF part is primarily engineered for the WG 160 Series transmission family. Based on its structural design and mounting interface, the 4656.056.060 is also compatible with the WG 180 and WG 200 series transmissions used in medium-duty trucks and construction equipment. It integrates seamlessly with the HOUSING REAR PART (4656201037) and the HOUSING REAR PART (4472239180) to complete the rear casing assembly. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101038 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201037 | HOUSING REAR PART | Rear casing section for output shaft alignment |
| 4472239180 | HOUSING REAR PART | Alternate rear housing variant for specific models |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 4656301148 | FIXING PLATE | Retains bearing preload within the assembly |
| 0636100817 | CAP SCREW | M10 fastener for housing section bolts |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil sump protection |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for debris capture |
| 0636100803 | CAP SCREW | M8 fastener for accessory mounting points |
Frequently Asked Questions
Q: How do I know if the 4656.056.060 needs replacement?
A: Inspect for visible wear on the guide surfaces and check for axial play in the main shaft. If you measure more than 0.15 mm of movement, replacement is recommended to prevent damage to the TRANSMISSION HOUSING.
Q: Can this part be reused after a transmission rebuild?
A: ZF recommends always installing a new 4656.056.060 during a major overhaul. The case-hardened surface wears microscopically over time, and reusing it can accelerate wear on the HOUS.FRONT SECT mating face.
Q: Is the 4656.056.060 compatible with the WG 200 series?
A: Yes, this part shares the same mounting pattern and dimensions as the WG 200 series. However, you should verify that the HOUSING REAR PART (4472239180) matches your specific transmission variant.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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