Overview
The ZF 4657.183.394 LOOSE PARTS kit is a critical service component designed specifically for the WG 210 Series transmission. This genuine OEM assembly contains the essential fasteners, seals, and positioning elements required to secure internal sub-assemblies within the gearbox. As a loose parts set, it replaces all worn or damaged hardware during a major overhaul, ensuring that the TRANSMISSION HOUSING maintains its structural integrity under load. The SKU 4657.183.394 is factory-matched to the WG210 platform, eliminating guesswork during rebuilds.
Symptoms of Failure
- Transmission oil seepage at housing joints: When the loose parts set degrades, the fasteners lose clamping force, allowing ATF to weep between the HOUS.FRONT SECT and the main casing.
- Abnormal gear rattle or vibration: Worn positioning pins and bolts cause micro-movement of the HOUSING REAR PART, leading to misalignment and audible noise during shifts.
- Intermittent loss of hydraulic pressure: A compromised loose parts assembly can shift the HOUSING REAR SECTION, disrupting oil galleries and causing delayed engagement.
- Torque converter shudder: Loose mounting hardware allows the bell housing to flex, transmitting vibration through the driveline.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.394 |
| Material Composition | Steel alloy / Zinc-plated fasteners |
| Total Weight | 0.85 kg (1.87 lbs) |
| Kit Contents | Bolts, dowel pins, lock washers, sealing rings |
| OEM Reference | ZF WG210 Service Kit |
| Thread Pitch | M8 x 1.25 (primary fasteners) |
Compatibility
This loose parts set is engineered for the ZF WG 210 Series, but it also cross-fits select earlier models. Verified compatible transmissions include the WG180, WG200, and WG210. The kit directly replaces hardware in the TRANSMISSION HOUSING assembly and is required when servicing the HOUS.FRONT SECT or HOUSING REAR PART. Always confirm your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0631306816 | CYLINDRICAL PIN | Aligns housing sections during assembly |
| 0636100801 | CAP SCREW | Secures the front housing to the main case |
| 4656301148 | FIXING PLATE | Locks bearing retainers in position |
| 4657301032 | SCREEN SHEET | Filters debris from the oil sump |
| 4657301033 | SCREEN SHEET | Secondary filtration for valve body circuit |
| 0636100803 | CAP SCREW | Fastens the rear housing cover |
