Overview
The ZF 4657.183.142 LOOSE PARTS kit is a critical service package designed specifically for the WG 210 Series transmission. This assembly contains the essential fasteners, seals, and positioning components required to secure the main housing sections during a rebuild or overhaul. As an OEM genuine part, SKU 4657.183.142 ensures that the internal clearances and bolt torque specifications are maintained, preventing misalignment of the gear train. This kit directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, providing the necessary hardware to lock these major castings together under load.
Symptoms of Failure
When the components within the 4657.183.142 kit degrade or are improperly installed, operators will notice distinct operational issues. Look for these specific failure symptoms to diagnose a worn loose parts set:
- Transmission oil leaks at housing seam: Worn gaskets or loose bolts in this kit allow pressurized ATF to weep between the HOUSING REAR PART and the main body, leaving visible drips under the vehicle.
- Gear slipping under load: If the CYLINDRICAL PIN within this kit shears or backs out, the valve body or clutch pack alignment shifts, causing intermittent power loss during acceleration.
- Abnormal vibration or driveline shudder: Missing or loose fasteners from the loose parts kit allow the bell housing to flex, transmitting harsh vibrations through the chassis at highway speeds.
- Difficult gear engagement: A failed locating dowel or bolt in this set can cause the shift rail to bind, making it hard to engage forward or reverse gears from a standstill.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.183.142 |
| Material Composition | Steel alloy (fasteners) / Nitrile rubber (seals) |
| Total Kit Weight | 0.85 kg (1.87 lbs) |
| Fastener Thread Size | M10 x 1.5 (primary bolts) |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF Friedrichshafen AG |
Compatibility
This genuine ZF loose parts kit is engineered for the WG 210 Series, but its hardware dimensions also support several adjacent transmission models. The kit is fully compatible with the WG180, WG200, and WG210 variants, as these share the same bolt pattern and housing interface. It is also suitable for select WG 211 and WG 220 units where the TRANSMISSION HOUSING casting is identical. Always verify your transmission serial number against the OEM parts catalog to confirm fitment for older WG 160 models.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101042 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201028 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201013 | HOUSING REAR PART | Rear casing supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Hex head bolt for housing fastening |
| 4656301148 | FIXING PLATE | Retainer plate for bearing preload |
| 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 mounting |
| 4656301048 | OIL FEED.HOUSG. | Lubrication channel housing for clutch packs |
