Overview
The ZF 4657.183.091 LOOSE PARTS for WG210 is a critical OEM genuine component designed for the internal assembly of ZF WG series transmissions. This specific part, identified by SKU 4657.183.091, functions as a precision-engineered kit of loose hardware and fasteners that secure key internal elements within the transmission housing. It sits directly within the main gear train assembly, ensuring that the TRANSMISSION HOUSING and the HOUS.FRONT SECT remain properly aligned under high torque loads. Without this loose parts set, the structural integrity of the WG210 gearbox is compromised, leading to misalignment and premature wear.
Symptoms of Failure
When the ZF 4657.183.091 LOOSE PARTS begin to degrade, operators often notice specific failure modes that indicate urgent replacement is needed. Common symptoms include:
- Oil leaks around the housing joints: Worn fasteners or missing hardware allow transmission fluid to seep past the CYLINDRICAL PIN and gasket surfaces, creating visible drips under the vehicle.
- Gear slipping under load: Loose internal parts cause the HOUSING REAR PART to shift slightly, disrupting gear engagement and resulting in intermittent power loss.
- Abnormal vibration or noise: Unsecured components rattle against the transmission casing, producing a distinct metallic clatter during acceleration or deceleration.
- Difficult shifting: Misalignment from degraded loose parts creates resistance in the shift mechanism, making gear changes feel stiff or unresponsive.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.183.091 |
| Material | High-strength alloy steel with zinc plating |
| Weight | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| OEM Reference | ZF 4657.183.091 (Genuine) |
| Thread Size | M10 x 1.5 (primary fasteners) |
| Torque Specification | 45 Nm (33 ft-lb) |
Compatibility
This ZF 4657.183.091 LOOSE PARTS kit is engineered for the WG 210 Series transmission, but it also fits select models in the broader WG family. Based on part type and OEM documentation, it is compatible with the following ZF transmissions:
- WG 210 (primary application)
- WG 200 (with minor adapter modifications)
- WG 180 (limited compatibility; verify housing alignment)
- WG 150 (requires additional hardware from the CAP SCREW set)
Always confirm fitment with your specific transmission serial number before installation. The loose parts work in conjunction with the TRANSMISSION HOUSING and HOUS.FRONT SECT to ensure proper sealing and structural rigidity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201028 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201013 | HOUSING REAR PART | Rear section housing for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636100801 | CAP SCREW | Fastener for securing housing components |
| 4656301148 | FIXING PLATE | Retaining plate for internal gears |
| 4657301034 | SCREEN SHEET | Filter screen for oil flow |
| 4657301035 | SCREEN SHEET | Secondary filter screen for debris |
| 0636100803 | CAP SCREW | Additional fastener for rear housing |
| 4681301040 | OIL FEED.HOUSG. | Oil feed housing for lubrication system |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
