Overview
The ZF 4657.183.162 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 internal transmission elements during a rebuild or major repair. Positioned within the main gear train housing, these parts ensure that the planetary gear sets and clutch packs remain properly aligned under high torque loads. The SKU 4657.183.162 is factory-matched to the WG210 architecture, guaranteeing dimensional accuracy and material compatibility with the original transmission design. When paired with the TRANSMISSION HOUSING (4657101039), this kit provides the foundational integrity needed for reliable power transfer.
Symptoms of Failure
When the loose parts in the 4657.183.162 kit begin to degrade, operators often notice specific operational issues. Look for these failure indicators:
- Transmission oil leaks at the housing seam – Worn or missing fasteners from this kit can cause pressurized fluid to escape between the HOUS.FRONT SECT (4657201028) and the main casing.
- Gear slipping under load – Loose retaining hardware allows internal components to shift, causing intermittent power loss during acceleration.
- Unusual metallic rattling from the bell housing – Dislodged pins or plates create a distinct noise, especially at low RPM.
- Delayed engagement when shifting – Misalignment of the HOUSING REAR PART (4657201013) due to failed fasteners can slow hydraulic response.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.162 |
| Material Composition | Case-hardened steel / zinc-plated alloy |
| Total Kit Weight | 0.85 kg (1.87 lbs) |
| Fastener Torque Spec | 45 Nm (33 ft-lbs) dry |
| OEM Reference | ZF 4657.183.162 (Genuine) |
| Thread Pitch (primary bolt) | M10 x 1.5 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This loose parts kit is engineered for the ZF WG 210 series, but its hardware dimensions also suit several adjacent transmission models. Verified compatible platforms include the WG180, WG200, and WG210 variants. The kit works with both standard and reinforced housing configurations. For proper installation, always verify that the CYLINDRICAL PIN (0631306792) aligns correctly with the dowel holes in the main housing. The 4657.183.162 is not recommended for the WG120 or WG150 series due to different bolt patterns.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201028 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201013 | HOUSING REAR PART | Rear housing section for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Hex head fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retention plate for bearing preload |
| 4657301034 | SCREEN SHEET | Filter mesh for oil circuit (type A) |
| 4657301035 | SCREEN SHEET | Filter mesh for oil circuit (type B) |
| 0636100803 | CAP SCREW | M8 fastener for valve body mounting |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing |
