Overview
The ZF 4657.183.376 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 small components required to secure and align internal transmission sections during a rebuild or major repair. Positioned within the main gearcase assembly, this kit interfaces directly with the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT to ensure proper clamping force and structural integrity. The SKU 4657.183.376 is frequently ordered alongside replacement housings to guarantee all fasteners, pins, and locating elements are renewed during overhaul.
Symptoms of Failure
- Transmission housing oil seepage: When the loose parts kit components degrade, you may notice fluid weeping from the joint between the 4657201170: HOUSING REAR PART and the main case, indicating worn seals or damaged locating pins.
- Abnormal gear engagement noise: Worn fixing plates or loose cap screws from this kit can cause the 4657298102: HOUSING REAR SECTION to shift slightly under load, producing a distinct clunking sound during gear changes.
- Vibration at highway speeds: If the cylindrical pins or screen sheets in this kit are missing or fatigued, the housing sections may not align concentrically, leading to driveline vibration that worsens with RPM.
- Intermittent loss of hydraulic pressure: A compromised fixing plate can allow the rear housing to separate microscopically, causing internal oil circuit leaks and delayed clutch pack engagement.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.376 |
| Product Type | LOOSE PARTS Kit (Hardware Set) |
| Material Composition | Steel (fasteners), Spring Steel (pins), Zinc-Plated Alloy |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (packaged) | 180 x 120 x 40 mm |
| Compatible Series | WG 210, WG 200, WG 180 |
| Included Components | Cap screws, cylindrical pins, fixing plates, screen sheets |
Compatibility
This genuine ZF 4657.183.376 LOOSE PARTS kit is engineered for the WG 210 transmission series, but its hardware dimensions also suit the WG 180 and WG 200 models due to shared housing bolt patterns. It is a direct replacement for the loose hardware used in the rear housing assembly of these transmissions. When ordering, verify that your transmission serial number falls within the WG 210 production range, as earlier WG 180 units may require a different pin diameter. The kit works in concert with the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT to restore factory tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural case for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201170 | HOUSING REAR PART | Rear housing section for output support |
| 4657298102 | HOUSING REAR SECTION | Complete rear housing assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing doweling |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Retaining plate for bearing preload |
| 4657301032 | SCREEN SHEET | Oil filter screen for sump |
| 4657301033 | SCREEN SHEET | Secondary oil filter screen |
| 0636100803 | CAP SCREW | High-torque housing bolt |
