Overview
The ZF 4657.183.186 LOOSE PARTS for WG210 is a critical service kit designed to restore the internal integrity of your WG 210 Series transmission. This OEM genuine part set includes the necessary fasteners, seals, and positioning elements that secure the main housing assembly. Specifically, it works in conjunction with the 4657101082: TRANSMISSION HOUSING to ensure precise alignment of internal components. The SKU 4657.183.186 is often ordered during a full rebuild to replace worn clips and retainers that can no longer hold torque specifications.
Symptoms of Failure
When the ZF 4657.183.186 LOOSE PARTS begin to degrade, operators typically notice these specific failure modes:
- Intermittent gear slippage under load – Loose retaining elements allow the clutch pack to shift out of alignment, causing power loss during acceleration.
- Chronic oil seepage at housing joints – Worn fasteners in this kit cannot maintain proper clamping force, leading to fluid migration between the 4657201166: HOUS.FRONT SECT and the main case.
- Abnormal metallic rattling from the bell housing – Missing or fatigued loose parts permit axial play in the input shaft, generating a distinct knocking sound at idle.
- Erratic shift timing – Hydraulic pressure bleeds past degraded sealing washers, causing delayed engagement between gears.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.186 |
| OEM Reference | ZF WG210 Service Kit |
| Material Composition | Steel (fasteners) / Nitrile (seals) |
| Weight (estimated) | 0.45 kg (1.0 lb) |
| Dimensions (kit) | 180 x 120 x 40 mm |
| Fastener Grade | 10.9 (cap screws) |
| Operating Temperature | -40°C to +120°C |
Compatibility
This loose parts kit is engineered for the ZF WG 210 Series, but it also cross-references to earlier WG180 and WG200 models due to shared housing architecture. It is essential when mating the 4657201170: HOUSING REAR PART to the main casing. Additionally, it supports the 4657298102: HOUSING REAR SECTION in heavy-duty applications. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section housing the torque converter |
| 4657201170 | HOUSING REAR PART | Rear casing supporting output shaft |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for PTO mounts |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for housing flange |
| 4656301148 | FIXING PLATE | Locks bearing in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 bolt for rear housing |
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