Overview
The ZF 4657.183.270 LOOSE PARTS kit is a critical service component designed specifically for the WG 210 series transmission. This genuine OEM assembly contains the necessary loose hardware and small components required to secure and seal the main transmission housing sections during rebuild or repair. The SKU 4657.183.270 is typically installed in conjunction with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure proper alignment and torque retention. Without this loose parts set, the structural integrity of the transmission assembly is compromised, leading to potential fluid migration and mechanical instability.
Symptoms of Failure
- External oil seepage at housing joints: When the 4657.183.270 loose parts degrade or are missing, you will notice transmission fluid weeping from the mating surfaces between the front and rear housing sections.
- Abnormal gear engagement noise: Worn or loose fasteners from this kit cause the HOUSING REAR PART to shift slightly under load, producing a distinct clunking sound during gear changes.
- Reduced hydraulic pressure: A compromised seal due to failed loose parts leads to internal pressure loss, resulting in sluggish shifting and delayed clutch pack engagement.
- Vibration at highway speeds: Loose structural components allow the HOUSING REAR SECTION to resonate, transmitting vibration through the driveline.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4657.183.270 |
| OEM Reference | ZF 4657.183.270 |
| Material Composition | Steel alloy with zinc plating (fasteners); nitrile rubber (seals) |
| Weight (estimated) | 0.85 kg (1.87 lbs) |
| Dimensions (kit packaging) | 200 mm x 150 mm x 40 mm |
| Torque Specification | 45 Nm (33 ft-lbs) for cap screws |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF 4657.183.270 LOOSE PARTS kit is engineered for the WG 210 series transmission family. It is also compatible with the WG180, WG200, and WG250 models where the housing architecture shares identical fastener patterns. Always verify the specific housing variant—such as the TRANSMISSION HOUSING or HOUS.FRONT SECT—to confirm fitment. The kit is not intended for use in WG 150 or WG 300 series without additional adapter components.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201167 | HOUS.FRONT SECT | Forward housing section for input shaft |
| 4657201171 | HOUSING REAR PART | Rear housing segment for output flange |
| 4657298103 | HOUSING REAR SECTION | Complete rear housing assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retention plate for bearing preload |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh filter for sump |
| 0636100803 | CAP SCREW | M12 fastener for rear housing |
Frequently Asked Questions
Q: Can I reuse the existing fasteners from my old housing instead of buying the 4657.183.270 kit?
A: No. ZF specifies that all cap screws and pins in this loose parts kit are single-use torque-to-yield fasteners. Reusing them risks thread galling and insufficient clamp load, leading to oil leaks.
Q: Does this kit include the seals for the housing joint?
A: Yes. The 4657.183.270 LOOSE PARTS set contains the necessary O-rings and gaskets for the interface between the HOUS.FRONT SECT and the HOUSING REAR PART.
Q: How do I confirm this kit fits my WG210 transmission?
A: Verify your transmission’s serial number and housing casting code. The kit is designed for WG210 units built after 2010. If your housing uses a different bolt pattern, you may need the HOUSING REAR SECTION as a separate purchase.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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