Overview
The ZF 4656.183.350 is a precision-engineered OEM genuine component specifically designed for the WG 160 Series transmission. This part functions as a critical internal guide and support element within the gear train, ensuring precise alignment and reducing axial play during high-torque operations. As an OEM genuine part, the SKU 4656.183.350 guarantees exact fitment and material integrity, matching the original factory specifications for ZF heavy-duty transmissions. It sits directly within the main housing assembly, interfacing with the planetary gear sets to maintain consistent power flow and minimize vibrational stress on surrounding components.
Symptoms of Failure
When the ZF 4656.183.350 begins to wear, operators often notice specific performance degradation. Common failure symptoms include:
- Audible gear whine or grinding noise during acceleration or deceleration, indicating loss of precise spacing within the WG 160 assembly.
- Intermittent gear slipping under load, particularly when shifting between forward and reverse, as the part can no longer maintain proper engagement depth.
- Metallic debris in the transmission fluid during routine oil changes, a clear sign that the 4656.183.350 surface is degrading and contaminating the lubrication system.
- Increased operating temperature due to friction from misalignment, which accelerates wear on the TRANSMISSION HOUSING and adjacent bearings.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4656.183.350 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 1.85 kg (4.08 lbs) |
| Outer Diameter | 98.5 mm |
| Inner Diameter | 42.0 mm |
| Height / Thickness | 32.4 mm |
| Surface Treatment | Phosphate coating for corrosion resistance |
| OEM Reference | ZF 4656.183.350 (Genuine) |
Compatibility
This genuine ZF part is primarily engineered for the WG 160 Series transmission, but it also shares dimensional compatibility with the WG 180 and WG 200 series models due to common planetary carrier architecture. It is a direct replacement for units built between 2005 and 2020. For proper installation, this component must be paired with the HOUS.FRONT SECT and the HOUSING REAR PART to ensure correct axial clearance. Additionally, the HOUSING REAR SECTION must be inspected for wear when replacing the 4656.183.350.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101057 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201078 | HOUSING REAR PART | Rear housing segment for output bearing retention |
| 4656298050 | HOUSING REAR SECTION | Extended rear section for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 4656301148 | FIXING PLATE | Locking plate for bearing preload adjustment |
| 0636100817 | CAP SCREW | M10 x 30mm fastener for housing assembly |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M8 x 20mm fastener for screen retention |
Frequently Asked Questions
Q: Can the ZF 4656.183.350 be installed without replacing the housing sections?
A: It is strongly recommended to inspect the HOUS.FRONT SECT and HOUSING REAR PART for scoring or wear. While the part can be replaced independently, worn housings will accelerate failure of the new component.
Q: What is the expected service life of this OEM genuine part?
A: Under normal operating conditions with proper fluid maintenance, the 4656.183.350 typically lasts 300,000 to 500,000 miles. Heavy loading or contamination can reduce this lifespan significantly.
Q: Does this part require special tools for installation?
A: Yes, a bearing press and a torque wrench calibrated to ZF specifications are necessary. The CYLINDRICAL PIN and FIXING PLATE must be aligned precisely to avoid binding.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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