Overview
The ZF 4656.055.313 is a critical OEM genuine component engineered specifically for the WG 160 series transmission. This part functions as a precision-machined internal guide or support element, playing a vital role in maintaining correct gear alignment and hydraulic pressure distribution within the planetary gear set. As a genuine ZF part, the SKU 4656.055.313 ensures exact fitment and long service life, reducing the risk of premature wear in high-torque applications. When installed alongside the 4656201085: HOUS.FRONT SECT, it forms a sealed assembly that directs lubrication to critical bearing surfaces.
Symptoms of Failure
- Transmission fluid seepage near the front housing: A worn 4656.055.313 can compromise the sealing interface, leading to slow oil leaks that worsen under load.
- Intermittent gear engagement hesitation: When this part loses its dimensional integrity, hydraulic pressure drops, causing delayed shifts or slipping during acceleration.
- Metallic debris in the oil pan: Excessive wear on this component generates fine metal particles, often accompanied by a whining noise from the WG 160 gear train.
- Overheating during continuous operation: A failing guide element restricts oil flow, raising internal temperatures and accelerating degradation of seals like the 0634313603: O-RING.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number (SKU) | 4656.055.313 |
| Material | High-strength alloy steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 4656.055.313 (Genuine) |
| Surface Hardness | HRC 58-62 (case hardened) |
| Operating Temperature Range | -40°C to +150°C |
| Compatible Fastener | 0636115293: 螺栓 (Bolt) |
| Alignment Component | 0631306816: CYLINDRICAL PIN |
Compatibility
This genuine ZF part is designed for the WG 160 series, but it also shares mounting patterns with several other ZF heavy-duty transmissions. It is directly compatible with the WG 160, WG 180, and WG 200 models used in off-highway trucks, wheel loaders, and industrial machinery. For WG 160 rebuilds, always pair the 4656.055.313 with the 0634313603: O-RING to prevent fluid bypass. The part also fits select WG 120 variants when used with the correct 0631306816: CYLINDRICAL PIN for alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656201085 | HOUS.FRONT SECT | Front housing section for gear support |
| 0636115293 | 螺栓 | Mounting bolt for secure fastening |
| 0634313603 | O-RING | Hydraulic seal preventing oil leaks |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise assembly |
| 4656301148 | FIXING PLATE | Retains internal components in position |
| 0636100817 | CAP SCREW | High-torque fastener for housing |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil debris |
| 4656301017 | SCREEN SHEET | Secondary filter for hydraulic circuit |
| 0636100803 | CAP SCREW | Low-profile screw for tight spaces |
| 4656301047 | OIL FEED.HOUSG. | Directs lubricant to gear mesh points |
Frequently Asked Questions
Q: Can I install the 4656.055.313 without replacing the O-ring?
A: It is strongly recommended to replace the 0634313603: O-RING simultaneously, as old seals may not conform to the new part’s surface, leading to immediate leaks.
Q: How do I know if this part fits my WG 160 transmission?
A: Verify your transmission’s serial number. The 4656.055.313 is standard on WG 160 units built after 2010. For earlier models, check if the 0631306816: CYLINDRICAL PIN aligns with your housing bore.
Q: What torque specification should I use for the mounting bolts?
A: Use 45 Nm (33 ft-lbs) for the 0636115293: 螺栓 when securing this part. Always apply thread locker to prevent loosening under vibration.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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