Overview
The ZF 4657.183.113 LOOSE PARTS kit is a critical service component designed specifically for the WG210 series transmission. This OEM genuine part contains the necessary fasteners, seals, and small hardware elements required to secure internal assemblies during a rebuild or major repair. Positioned within the transmission’s main casing, these loose parts ensure that the TRANSMISSION HOUSING and adjacent sections remain properly torqued and sealed under high-load conditions. The SKU 4657.183.113 is factory-matched to ZF’s original specifications, eliminating guesswork during installation and guaranteeing a precise fit for your WG210 unit.
Symptoms of Failure
- Oil seepage at housing joints: When these loose parts degrade or are missing, fluid can escape between the HOUS.FRONT SECT and the main body, leading to gradual transmission fluid loss.
- Abnormal gear engagement noise: Worn or loose hardware allows micro-movement of internal components, producing a distinct clatter or whine during shifts.
- Intermittent gear slipping under load: If the HOUSING REAR PART is not properly secured by these fasteners, torque transfer becomes inconsistent, causing the transmission to momentarily lose drive.
- Vibration at highway speeds: Loose mounting points from degraded parts create harmonic vibrations that worsen with RPM, often misdiagnosed as driveline issues.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.183.113 |
| Material | High-tensile steel with zinc-nickel coating |
| Weight (estimated) | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 4657.183.113 |
| Compatible Fastener Torque | 45–55 Nm (33–41 ft-lbs) |
| Package Contents | Bolts, washers, dowels, and retaining clips |
Compatibility
This loose parts kit is engineered for the WG210 series but also fits select ZF transmissions sharing the same housing architecture. Compatible models include WG180, WG200, and WG210 variants produced after 2005. The kit directly interfaces with the CYLINDRICAL PIN alignment points and the TRANSMISSION HOUSING bolt pattern. For WG190 or earlier series, verify housing dimensions before ordering. Always cross-reference your transmission serial number with ZF’s parts catalog to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201028 | HOUS.FRONT SECT | Front section housing input shaft and bearings |
| 4657201013 | HOUSING REAR PART | Rear section supporting output flange |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | High-strength bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locks bearing races in position |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | Flanged bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to clutch packs |
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