Overview
The ZF 4657.183.432 LOOSE PARTS for WG190 is a critical service kit designed to restore the precise internal clearances and sealing integrity of your ZF WG190 series transmission. This OEM genuine part, identified by SKU 4657.183.432, includes essential loose components that secure and stabilize the main housing assembly. It sits directly within the transmission’s structural core, working in conjunction with the TRANSMISSION HOUSING to prevent axial movement and maintain proper gear alignment. Without this kit, the entire drivetrain assembly risks catastrophic misalignment under heavy load.
Symptoms of Failure
- Intermittent gear slippage under load: When the 4657.183.432 loose parts wear, the housing components shift, causing the clutch packs to lose engagement pressure. This manifests as a sudden loss of power during acceleration.
- Chronic transmission fluid seepage at housing joints: Deteriorated loose parts compromise the seal between the HOUS.FRONT SECT and the main body, leading to visible oil drips after parking.
- Audible metallic rattling from the bell housing: Worn fasteners and spacers allow the HOUSING REAR PART to vibrate against the output shaft, producing a distinct clatter at idle.
- Hard shifting between 2nd and 3rd gear: Misalignment caused by degraded loose parts creates binding in the shift rail, requiring excessive force to change gears.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.432 |
| Material | Hardened alloy steel / Nitrile rubber seals |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| OEM Reference | ZF 4657.183.432 |
| Torque Spec | 45 Nm (33 ft-lbs) for cap screws |
Compatibility
This OEM genuine part is engineered specifically for the ZF WG190 series, but it also fits the WG180, WG200, and WG210 models due to shared housing architecture. It is a direct replacement for the loose hardware found in the HOUSING REAR SECTION assembly. Always verify your transmission’s serial number against the ZF parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201161 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201162 | HOUSING REAR PART | Rear section housing for output shaft |
| 4657298107 | HOUSING REAR SECTION | Complete rear housing assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locking plate for bearing retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil sump |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 bolt for rear housing |
Frequently Asked Questions
Q: Can I install the 4657.183.432 kit without removing the transmission?
A: No. This kit requires access to the internal housing bolts and alignment pins. The transmission must be removed from the vehicle and the bell housing split to replace these loose parts properly.
Q: How do I know if my WG190 needs this specific loose parts kit?
A: Inspect for oil residue around the mating line between the HOUS.FRONT SECT and the main housing. If you see weeping fluid or feel play in the housing joint, this kit is required.
Q: Is this kit compatible with the ZF WG200 series?
A: Yes. The 4657.183.432 loose parts are dimensionally identical to those used in WG200 transmissions. Always cross-reference your housing part numbers with the HOUSING REAR SECTION to confirm fitment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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