Overview
The ZF 4657.183.235 LOOSE PARTS for WG210 represents a critical internal component kit designed to maintain precise hydraulic and mechanical alignment within the WG 210 Series transmission. This OEM genuine part, identified by SKU 4657.183.235, functions as a collection of fasteners, spacers, and alignment elements that secure the TRANSMISSION HOUSING to the HOUS.FRONT SECT and the HOUSING REAR PART. Without these loose parts, the transmission assembly cannot maintain the necessary clamping force to prevent fluid migration or gear train misalignment.
Symptoms of Failure
- External oil seepage at housing joints: When the 4657.183.235 loose parts degrade or are missing, the seal between the TRANSMISSION HOUSING and the HOUS.FRONT SECT loses compression, causing ATF to weep from the mating surfaces.
- Intermittent gear engagement hesitation: Worn or fatigued components in this kit allow micro-movement of the HOUSING REAR PART, leading to delayed clutch pack engagement under load.
- Abnormal driveline vibration: A missing or loose CYLINDRICAL PIN within the loose parts set permits radial play, generating low-frequency vibration during torque converter lockup.
- Increased operating noise from the bell housing area: Insufficient retention of internal screens and oil feed components results in rattling sounds during gear changes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.235 |
| OEM Reference | ZF WG210 Series Loose Parts Kit |
| Material Composition | Case-hardened steel (fasteners), nitrile rubber (seals) |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (Kit) | 180 mm x 120 mm x 40 mm |
| Torque Specification | 45 Nm (fasteners), 12 Nm (cap screws) |
| Included Components | 6x cap screws, 2x cylindrical pins, 1x fixing plate |
Compatibility
This genuine ZF 4657.183.235 loose parts kit is engineered specifically for the WG 210 transmission series. It also cross-applies to the WG180 and WG200 models when using the same housing architecture. The kit interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, and it is required for any overhaul involving the HOUSING REAR PART. Always verify the CYLINDRICAL PIN alignment before final assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201028 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201013 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 fastener for housing retention |
| 4656301148 | FIXING PLATE | Locks bearing preload adjustment |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M8 fastener for screen retention |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil delivery manifold |
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