Overview
The ZF 4657.183.110 LOOSE PARTS for WG190 is a critical service kit designed to restore the internal integrity of your ZF WG190 series transmission. This OEM genuine part, identified by SKU 4657.183.110, contains the essential loose hardware and sealing components that secure the main housing sections together. Positioned between the front and rear casings, this kit ensures proper clamping force and alignment of the TRANSMISSION HOUSING assembly. Without these loose parts, the transmission cannot maintain hydraulic pressure or structural rigidity during heavy-duty operation.
Symptoms of Failure
- External oil seepage at housing joints: When the 4657.183.110 kit degrades, you may notice fluid weeping between the HOUS.FRONT SECT and the main casing, indicating compromised sealing.
- Intermittent gear slipping under load: Worn loose parts can cause micro-movement of the HOUSING REAR PART, leading to misalignment and clutch pack slippage during torque conversion.
- Abnormal vibration or driveline noise: A loose CYLINDRICAL PIN within this kit can create a knocking sound during gear engagement, especially in reverse.
- Reduced hydraulic pressure readings: Failure of these fasteners allows internal leakage paths to open, dropping line pressure below factory specifications.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.110 |
| Material Composition | Hardened steel with zinc plating (fasteners); nitrile rubber (seals) |
| Total Weight | 0.85 kg (1.87 lbs) |
| Kit Contents | Bolts, washers, dowel pins, O-rings, and sealing rings |
| OEM Reference | ZF Friedrichshafen AG – WG190 Series |
| Torque Specification | 45 Nm ± 5 Nm (housing bolts) |
Compatibility
This genuine ZF 4657.183.110 LOOSE PARTS kit is specifically engineered for the WG 190 Series transmission family. It is also compatible with the closely related WG180 and WG200 models, as these share the same housing bolt pattern and pin locations. For installations requiring additional fasteners, pair this kit with the CAP SCREW (0636100801) and the FIXING PLATE (4656301148) to ensure complete assembly integrity. The kit does not fit the older WG120 or WG150 series due to different housing dimensions.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing torque converter |
| 4657201020 | HOUSING REAR PART | Rear casing for output shaft support |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing centering |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locking plate for bolt retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil sump |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M8 bolt for accessory mounting |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing |
Frequently Asked Questions
Q: Can I reuse the old bolts from my WG190 when installing this kit?
A: No. The 4657.183.110 kit includes new OEM bolts and pins because original fasteners stretch under torque. Reusing them risks loosening and oil leaks.
Q: Does this kit include the gaskets for the housing joints?
A: Yes. The kit contains all necessary O-rings and sealing rings for the TRANSMISSION HOUSING interface. Separate gaskets for the oil pan are not included.
Q: How do I verify this is the correct part for my WG180 transmission?
A: Check your transmission serial number plate. If it lists WG180, WG190, or WG200, this kit fits. For WG120 models, you need a different loose parts set.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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