Overview
This OEM genuine ZF part, the 4656.183.246, is a critical internal component engineered specifically for the WG 160 Series transmission. It functions as a precision-machined guide and support element within the clutch or shift mechanism assembly, ensuring correct alignment and smooth actuation during gear changes. The SKU 4656.183.246 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty commercial vehicle transmissions. This part interfaces directly with the TRANSMISSION HOUSING to maintain structural integrity under high torque loads.
Symptoms of Failure
When the 4656.183.246 begins to degrade, operators will notice distinct performance issues. Look for these specific failure symptoms:
- Hard shifting or gear engagement delay: Worn guide surfaces cause the shift fork to bind, leading to hesitation when selecting gears.
- Metallic rattling from the transmission housing: Excessive clearance from a worn part creates a distinct noise, especially at idle or low RPM.
- Intermittent gear slip under load: The component no longer holds the shift rail in position, causing the transmission to pop out of gear during acceleration.
- Oil contamination with metallic debris: Abrasion of the part sheds fine metal particles into the lubricant, visible during oil changes.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4656.183.246 |
| Material | Case-hardened steel (C45E / 1.1191) |
| Weight | 0.85 kg (1.87 lbs) |
| Outer Diameter | 42.0 mm |
| Inner Diameter | 18.5 mm |
| Length | 95.0 mm |
| Surface Finish | Phosphate coated for corrosion resistance |
| OEM Reference | ZF WG 160 Series |
Compatibility
This genuine ZF part is designed primarily for the WG 160 transmission series. It is also compatible with the WG 180 and WG 200 series models that share the same shift mechanism architecture. The 4656.183.246 works in concert with the HOUS.FRONT SECT and the HOUSING REAR PART to form the complete shift rail housing assembly. For full rebuilds, the HOUSING REAR SECTION should also be inspected concurrently.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101057 | TRANSMISSION HOUSING | Main structural casing for the gear train |
| 4656201075 | HOUS.FRONT SECT | Front section of the shift housing |
| 4656201078 | HOUSING REAR PART | Rear section of the shift housing |
| 4656298050 | HOUSING REAR SECTION | Complete rear housing assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 4656301148 | FIXING PLATE | Secures shift components in position |
| 0636100817 | CAP SCREW | Fastener for housing attachment |
| 4656301016 | SCREEN SHEET | Oil filter screen (variant A) |
| 4656301017 | SCREEN SHEET | Oil filter screen (variant B) |
| 0636100803 | CAP SCREW | Alternate fastener for rear housing |
Frequently Asked Questions
Q: Can I install the 4656.183.246 without replacing the housing sections?
A: Yes, but we strongly recommend inspecting the HOUS.FRONT SECT and HOUSING REAR PART for wear. If those bores are ovalized, the new part will fail prematurely.
Q: What is the typical service life of this part in a WG 160 transmission?
A: Under normal highway conditions, the 4656.183.246 lasts 400,000–500,000 km. Heavy off-road use or contaminated oil will reduce this significantly.
Q: Does this part come with the fixing plate or cap screws?
A: No, it is sold as a standalone component. You will need to order the FIXING PLATE and CAP SCREW separately for a complete installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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