Overview
The ZF 4657.183.205 LOOSE PARTS kit is a critical service component designed specifically for the WG 210 Series transmission. This genuine OEM assembly includes all necessary fasteners, seals, and small hardware required to secure and seal the main transmission housing sections during a rebuild or overhaul. The kit sits at the interface between the 4657101080: TRANSMISSION HOUSING and the 4657201167: HOUS.FRONT SECT, ensuring structural integrity and preventing fluid migration. The SKU 4657.183.205 is the exact OEM reference for this loose parts package, guaranteeing a precise fit and factory-specified clamping force.
Symptoms of Failure
When the 4657.183.205 LOOSE PARTS kit deteriorates or is not replaced during service, operators will notice several distinct failure modes:
- Transmission oil leaks at housing seam: Worn gaskets and degraded fasteners cause ATF to weep between the 4657201171: HOUSING REAR PART and the main casing, leaving visible drips under the vehicle.
- Gear slipping under load: Loose housing bolts allow the 4657298103: HOUSING REAR SECTION to shift slightly, misaligning clutch packs and causing intermittent power loss.
- Abnormal vibration or driveline noise: Missing or fatigued hardware in the loose parts set leads to micro-movement between housing sections, generating a low-frequency hum during acceleration.
- Contaminated transmission fluid: Failed sealing elements from this kit allow dirt ingress, which accelerates wear on internal components like the 4657301034: SCREEN SHEET.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.183.205 |
| OEM Reference | ZF 4657.183.205 |
| Material Composition | Steel fasteners (grade 10.9) + NBR elastomer seals |
| Kit Weight (estimated) | 0.85 kg (1.87 lbs) |
| Dimensions (packaged) | 200 mm x 150 mm x 40 mm |
| Thread Sizes Included | M8, M10, M12 (various lengths) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This ZF 4657.183.205 LOOSE PARTS kit is engineered for the WG 210 Series transmission family. Based on the part type and housing interface design, it is also compatible with the following ZF models that share the same bolt pattern and seal geometry:
- ZF WG 180 Series (retrofit applications)
- ZF WG 200 Series (direct interchange)
- ZF WG 210 Series (primary application)
- ZF WG 220 Series (limited compatibility, verify housing variant)
Always cross-reference your transmission serial number with the 0631306816: CYLINDRICAL PIN alignment specifications to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201167 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201171 | HOUSING REAR PART | Rear housing section for output assembly |
| 4657298103 | HOUSING REAR SECTION | Extended rear housing for PTO mount |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing centering |
| 0636100801 | CAP SCREW | M10 fastener for housing flange |
| 4656301148 | FIXING PLATE | Retention plate for bearing preload |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for pump intake |
| 0636100803 | CAP SCREW | M12 bolt for rear housing attachment |
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