Overview
The ZF 4657.183.060 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 190 series transmission. This assembly group contains the necessary loose hardware and small components required to secure and align internal transmission assemblies during a rebuild or major repair. Positioned within the main gear case, these parts ensure that larger structural elements like the TRANSMISSION HOUSING and the HOUS.FRONT SECT remain properly torqued and vibration-resistant. The SKU 4657.183.060 is often ordered alongside the HOUSING REAR PART to complete a full casing overhaul. Without this genuine loose parts kit, the structural integrity of the WG190 gear train is compromised.
Symptoms of Failure
- Transmission oil weeping from casing seams: When the loose hardware fatigues, the seal between the TRANSMISSION HOUSING and the rear cover loses clamping force, leading to slow oil seepage.
- Abnormal gear rattle or driveline vibration: Worn or missing CYLINDRICAL PIN components allow misalignment between the front and rear housing sections, causing audible noise under load.
- Intermittent gear engagement difficulty: If the loose parts set fails, the HOUS.FRONT SECT can shift slightly, preventing the shift rail from fully engaging gears.
- Increased metallic debris in oil pan: Fatigue fractures in the retaining hardware release small metal particles into the lubrication circuit, accelerating wear on bearings.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.060 |
| Material Composition | Case-hardened steel / Zinc-plated alloy |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Package Contents | Bolts, washers, dowel pins, retaining clips |
| OEM Reference | ZF Friedrichshafen AG |
| Thread Pitch (primary bolt) | M10 x 1.5 |
| Torque Specification | 45 Nm (33 ft-lb) |
Compatibility
This genuine ZF 4657.183.060 loose parts kit is engineered for the WG 190 series transmission family. Based on the part type and OEM cataloging, it is also compatible with the WG 180 and WG 200 models that share the same housing architecture. The kit is required whenever servicing the HOUSING REAR PART or replacing the CYLINDRICAL PIN that indexes the housing halves. Always verify your transmission serial number against the WG190 parts manual before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing for gear cluster |
| 4657201027 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201020 | HOUSING REAR PART | Rear cover and bearing support |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Retains bearing in position |
| 4657301032 | SCREEN SHEET | Oil strainer mesh (fine) |
| 4657301033 | SCREEN SHEET | Oil strainer mesh (coarse) |
| 0636100803 | CAP SCREW | Fastener for screen sheet retention |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing |
Frequently Asked Questions
Q: Can I reuse the original bolts from my old housing instead of buying the 4657.183.060 kit?
A: ZF strongly discourages reusing torque-to-yield fasteners. The loose parts kit includes new hardware with fresh thread-locking compound to prevent loosening under thermal cycling. Reusing old bolts risks oil leaks and housing separation.
Q: Does this kit include the CYLINDRICAL PIN for aligning the HOUSING REAR PART?
A: Yes. The 4657.183.060 set contains the CYLINDRICAL PIN (0631306792) required to properly index the rear housing to the main transmission housing. Always install a new pin during reassembly.
Q: Is this part compatible with the WG180 if I also replace the HOUS.FRONT SECT?
A: Yes, the WG180 and WG190 share the same bolt pattern and dowel pin locations. However, you must also verify the HOUS.FRONT SECT part number 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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