Overview
The ZF 4657.183.253 LOOSE PARTS kit is a critical service component designed specifically for the WG 210 Series transmission. This OEM genuine assembly includes all necessary loose hardware—such as seals, retainers, and small fasteners—required to secure and seal the main transmission housing sections during overhaul or repair. Positioned at the interface between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, this part ensures structural integrity and prevents fluid migration. The SKU 4657.183.253 is factory-matched to ZF’s exact tolerances, eliminating guesswork during rebuilds.
Symptoms of Failure
When the 4657.183.253 LOOSE PARTS kit deteriorates or is improperly installed, operators typically encounter these specific failure modes:
- Transmission fluid seepage at housing joints – Worn gaskets or loose hardware cause oil to weep between the HOUSING REAR PART and the main case, leading to low fluid levels.
- Intermittent gear slippage under load – Loose retaining components allow internal shafts to shift, disrupting clutch pack engagement and causing erratic shifting.
- Abnormal vibration or driveline noise – Missing or fatigued fasteners permit micro-movement of the HOUSING REAR SECTION, generating metallic rattling during acceleration.
- Difficulty maintaining hydraulic pressure – Compromised sealing surfaces from degraded loose parts reduce pump efficiency, resulting in delayed gear engagement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.183.253 |
| OEM Reference | ZF 4657.183.253 |
| Material Composition | Steel alloy with zinc-plated hardware; nitrile rubber seals |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 40 mm |
| Thread Pitch (primary bolts) | M10 x 1.5 |
| Torque Specification | 45 Nm (33 ft-lbs) dry |
Compatibility
This genuine ZF loose parts kit is engineered for the WG 210 Series transmission family. Based on its design and fastener configuration, it is also compatible with the following ZF models that share the same housing architecture: WG180, WG200, and WG250. Always verify the housing casting numbers before installation. The kit directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, making it essential for any full rebuild of these units.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural case for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201170 | HOUSING REAR PART | Rear housing section for output shaft support |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing doweling |
| 0636100801 | CAP SCREW | M10 fastener for housing bolting |
| 4656301148 | FIXING PLATE | Retainer plate for bearing preload |
| 4657301032 | SCREEN SHEET | Filter screen for oil sump |
| 4657301033 | SCREEN SHEET | Secondary filter screen for valve body |
| 0636100803 | CAP SCREW | M12 fastener for heavy-duty joints |
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