Overview
The ZF 4657.199.068 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 210 series transmission. This assembly contains the necessary loose hardware and small components required to secure and align internal transmission sections during a rebuild or major repair. Positioned within the main gear train housing, this kit ensures that the TRANSMISSION HOUSING and its adjoining sections maintain proper structural integrity under load. The SKU 4657.199.068 is factory-sealed and includes all OEM-specified fasteners and spacers for a precise fit, eliminating guesswork during reassembly of the WG210.
Symptoms of Failure
- Transmission oil seepage at housing joints: When the loose parts kit components (such as cap screws or locating pins) degrade or loosen, oil can weep from the mating surfaces between the HOUS.FRONT SECT and the main casing.
- Abnormal gear engagement noise or clunking: Worn or missing fixing plates and pins from this kit allow micro-movement between the HOUSING REAR PART and the intermediate plate, causing audible misalignment during shifting.
- Vibration during torque conversion: A failing loose parts set can lead to uneven clamping force on the HOUSING REAR SECTION, resulting in driveline shudder at highway speeds.
- Difficulty in transmission reassembly: If original loose parts are reused, bolt holes may strip or align poorly, indicating the need for a fresh 4657.199.068 kit.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number (SKU) | 4657.199.068 |
| OEM Reference | ZF Genuine – WG210 Series |
| Kit Contents | Cap screws, cylindrical pins, fixing plates, screen sheets |
| Material | Hardened steel (fasteners), stainless steel (screens) |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (packaged) | 180 x 120 x 40 mm |
| Compatible Fastener Torque | 45 Nm (per ZF spec) |
Compatibility
This loose parts kit is engineered primarily for the ZF WG 210 series transmissions. Based on the part type and housing interface design, it is also compatible with the WG180 and WG200 models that share the same bolt pattern and housing architecture. The kit directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, ensuring a secure fit across these platforms. Always verify your transmission serial number against ZF documentation to confirm suitability.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201168 | HOUSING REAR PART | Rear housing segment for output bearing |
| 4657298101 | HOUSING REAR SECTION | Complete rear section with mounting flanges |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | Hex head bolt for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate to prevent fastener loosening |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Secondary mesh filter for high-pressure side |
| 0636100803 | CAP SCREW | M10 cap screw for rear housing attachment |
Frequently Asked Questions
Q: Can I use the 4657.199.068 kit on a WG180 transmission?
A: Yes, this loose parts kit is designed for the WG210 series but shares identical fastener specifications with the WG180 and WG200 models. Verify your housing part numbers before installation.
Q: What is included in the 4657.199.068 LOOSE PARTS set?
A: The kit typically contains cap screws, cylindrical pins, fixing plates, and screen sheets. It does not include the main housing sections themselves, which are sold separately under part numbers like 4657101078.
Q: How do I know if my loose parts kit has failed?
A: Look for oil seepage at housing joints, unusual gear noise, or vibration during acceleration. If you notice any of these symptoms, inspect the fasteners and replace the kit immediately.
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