Overview
The ZF 4657.183.330 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 fasteners required to secure and align the main transmission housing sections during rebuild or repair. Positioned at the central interface of the gearbox, part number 4657.183.330 ensures that the TRANSMISSION HOUSING remains properly mated to the HOUS.FRONT SECT and the HOUSING REAR PART. Without this precise loose parts set, internal gear alignment and hydraulic pressure integrity are compromised, leading to premature wear.
Symptoms of Failure
- Oil seepage at housing joints: When the 4657.183.330 loose parts degrade or are missing, you will notice transmission fluid weeping from the seam between the front and rear housing sections, often mistaken for a gasket failure.
- Intermittent gear slipping under load: Worn or loose fasteners from this kit cause micro-movement between the HOUSING REAR SECTION and the main body, resulting in erratic clutch pack engagement and slipping during torque conversion.
- Abnormal driveline vibration: A lack of proper clamping force from the loose parts allows the housing halves to shift slightly, creating a low-frequency vibration that intensifies at highway speeds.
- Hard shifting or delayed engagement: Misalignment caused by failing 4657.183.330 components disrupts valve body alignment, leading to harsh 1-2 upshifts or a noticeable delay when shifting from Neutral to Drive.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.330 |
| Material Composition | Case-hardened steel / Zinc-plated alloy |
| Weight (estimated) | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| OEM Reference | ZF 4657.183.330 |
| Application Type | Loose parts / Hardware kit |
| Torque Rating | Class 10.9 (fasteners) |
Compatibility
This genuine ZF 4657.183.330 loose parts kit is engineered primarily for the WG 210 series transmission. Based on its structural role, it also fits the WG 180 and WG 200 series where the housing architecture is shared. Additionally, it is compatible with select WG 160 and WG 250 variants that utilize the same front-to-rear housing interface. Always verify your transmission serial number before installation. For full assembly, this kit works in conjunction with the HOUSING REAR PART and the HOUSING REAR SECTION to ensure concentric alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201170 | HOUSING REAR PART | Rear housing section for output support |
| 4657298102 | HOUSING REAR SECTION | Secondary rear housing component |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing doweling |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Secures loose parts in position |
| 4657301032 | SCREEN SHEET | Filter screen for oil circuit |
| 4657301033 | SCREEN SHEET | Secondary filter screen element |
| 0636100803 | CAP SCREW | Additional housing fastener |
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