Overview
The ZF 4657.183.359 LOOSE PARTS assembly is a critical internal component kit designed specifically for the WG 210 Series transmission. This genuine OEM part serves as a collection of precision-engineered fasteners, spacers, and retaining elements that secure key sub-assemblies within the transmission housing. Without this loose parts kit, the structural integrity of the gear train and hydraulic circuits is compromised. The SKU 4657.183.359 is factory-matched to ensure exact fitment and load distribution across the WG210’s modular architecture. It works in concert with the 4657101082: TRANSMISSION HOUSING to maintain proper alignment of rotating components.
Symptoms of Failure
When the ZF 4657.183.359 LOOSE PARTS begin to degrade, operators typically notice these specific failure indicators:
- Intermittent gear slippage under load – Worn retaining elements allow axial play, causing clutch packs to disengage momentarily during torque transfer.
- Low-pressure hydraulic leaks at housing joints – Deteriorated sealing washers or loose fasteners permit ATF to weep from the interface between the 4657201166: HOUS.FRONT SECT and the main casing.
- Abnormal metallic rattling from the bell housing – Loose pins or plates create vibration that resonates through the 4657201170: HOUSING REAR PART during idle.
- Delayed engagement when shifting from Neutral to Drive – Missing or fatigued components prevent the valve body from seating correctly against the 4657298102: HOUSING REAR SECTION.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.359 |
| Material Composition | Case-hardened steel (fasteners), nitrile rubber (seals) |
| Weight (kit) | 0.85 kg (1.87 lbs) |
| Max Torque Capacity | 1,200 Nm |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.183.359 (Genuine) |
| Thread Pitch (primary bolts) | M8 x 1.25 |
Compatibility
This loose parts kit is engineered for the ZF WG 210 Series, but it also cross-fits select models in the WG180, WG200, and WG250 families due to shared housing architecture. It is specifically validated for use with the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT. Always verify your transmission’s serial number against the ZF parts catalog before installation. The kit is not backward-compatible with pre-1990 WG100 series units.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201170 | HOUSING REAR PART | Rear casing for output bearing support |
| 4657298102 | HOUSING REAR SECTION | End cover for PTO interface |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M8 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Retention plate for valve body |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M10 bolt for rear housing attachment |
