Overview
The ZF 4657.199.406 LOOSE PARTS kit is a critical service assembly designed for the WG190 and WG210 series transmissions. This genuine OEM part contains the necessary loose components—such as seals, retaining rings, and small hardware—required to secure and seal the main housing sections during a rebuild or overhaul. Positioned at the interface between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, this kit ensures that all internal components remain properly aligned and leak-free under high torque loads. The SKU 4657.199.406 is factory-matched to the WG190 and WG210 platforms, guaranteeing a precise fit without modification.
Symptoms of Failure
- External oil seepage at the housing joint: When the loose parts in this kit degrade, you may notice fluid weeping between the HOUSING REAR PART and the main body, leading to gradual transmission fluid loss.
- Intermittent gear engagement hesitation: Worn retaining components can allow slight axial movement of internal shafts, causing delayed or rough shifting during acceleration.
- Unusual metallic rattling from the bell housing: Loose hardware within the assembly may produce a distinct rattle at idle or low RPM, indicating that the CYLINDRICAL PIN or related fasteners have lost their clamping force.
- Increased operating temperature: A failure of the sealing elements in this kit can allow debris into the oil circuit, raising transmission temperatures above normal thresholds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.199.406 |
| Material Composition | Steel / Nitrile Rubber (seals) |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| OEM Reference | ZF 4657.199.406 |
| Compatible Housing | WG190, WG210 |
| Included Fasteners | Retaining rings, gaskets, dowel pins |
Compatibility
This loose parts kit is engineered primarily for the ZF WG190 and WG210 series transmissions. It is also compatible with the closely related WG180 and WG200 models, as these share the same housing interface dimensions. The kit works in conjunction with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to form a complete sealing and retention system. For full assembly, always pair this kit with the HOUSING REAR PART and the CYLINDRICAL PIN for proper alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201027 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201020 | HOUSING REAR PART | Rear section housing for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Secures internal components in place |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Secondary mesh filter for debris |
| 0636100803 | CAP SCREW | Additional housing fastener |
| 4681301040 | OIL FEED.HOUSG. | Oil supply channel to bearings |
Frequently Asked Questions
Q: Can I use the 4657.199.406 kit on a WG180 transmission?
A: Yes, the WG180 shares the same housing interface dimensions as the WG190 and WG210, making this kit fully compatible for those models as well.
Q: What is the typical service interval for replacing these loose parts?
A: It is recommended to replace the 4657.199.406 kit during any major transmission overhaul or when you observe oil leakage at the housing joints. For preventive maintenance, consider replacement every 500,000 km or 10,000 operating hours.
Q: Does this kit include the cylindrical pin (0631306792)?
A: No, the cylindrical pin is a separate component. You must order part number 0631306792 separately to ensure proper alignment during reassembly.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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