Overview
The ZF 4657.183.284 LOOSE PARTS for WG210 is a critical OEM genuine component designed to maintain the structural integrity and operational precision of the WG 210 series transmission. This loose parts kit, identified by SKU 4657.183.284, includes essential fasteners, seals, and positioning elements that secure internal assemblies within the gearbox. It sits directly within the main housing assembly, interfacing with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure proper alignment of rotating components. Without this kit, the transmission cannot maintain the tight tolerances required for smooth power delivery in heavy-duty applications.
Symptoms of Failure
- Oil leaks from housing joints: When the 4657.183.284 loose parts degrade, seals and gaskets fail, causing transmission fluid to seep between the HOUSING REAR PART and the main casing. This is a common long-tail search query for “ZF WG210 oil leak repair.”
- Gear slipping under load: Worn positioning pins or bolts in this kit allow the HOUSING REAR SECTION to shift slightly, leading to misaligned gear meshing and intermittent slipping during acceleration.
- Abnormal vibration at highway speeds: Loose fasteners cause the housing sections to resonate, transmitting vibration through the driveline. Technicians often search for “ZF transmission vibration fix” when encountering this issue.
- Difficulty engaging gears: A compromised loose parts kit can prevent the shift mechanism from seating correctly, resulting in hard or incomplete gear engagement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.284 |
| Material | Steel alloy with zinc plating (fasteners); Nitrile rubber (seals) |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions | Kit includes 12 pieces; largest bolt: M12 x 45 mm |
| OEM Reference | ZF 4657.183.284 (Genuine) |
| Torque Spec | 85 Nm (62.7 ft-lbs) for main housing bolts |
Compatibility
This OEM genuine part is specifically engineered for the ZF WG 210 series, but it also fits select models in the WG180 and WG200 families due to shared housing architecture. It is directly compatible with transmissions using the TRANSMISSION HOUSING (part 4657101080) and the HOUS.FRONT SECT (part 4657201167). Always verify your transmission serial number against ZF’s compatibility chart before installation. The kit also works with the HOUSING REAR PART and HOUSING REAR SECTION found in later WG210 revisions.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201167 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201171 | HOUSING REAR PART | Rear casing section for output bearings |
| 4657298103 | HOUSING REAR SECTION | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowels |
| 0636100801 | CAP SCREW | Fastener for housing-to-bell housing |
| 4656301148 | FIXING PLATE | Retains bearing in position |
| 4657301034 | SCREEN SHEET | Filter screen for oil sump |
| 4657301035 | SCREEN SHEET | Secondary filter screen variant |
| 0636100803 | CAP SCREW | Bolt for rear housing attachment |
