Overview
The ZF 4657.183.390 LOOSE PARTS kit is a critical service component designed specifically for the WG 211 Series transmission. This genuine OEM assembly contains the essential fasteners, seals, and small hardware required to secure internal sub-assemblies during a rebuild or major repair. The kit interfaces directly with the main casing and valve body area, ensuring that all loose components remain properly torqued and aligned under high-load conditions. The SKU 4657.183.390 is factory-matched to prevent vibration-induced loosening, which can lead to catastrophic internal damage if overlooked.
Symptoms of Failure
When the ZF 4657.183.390 LOOSE PARTS kit begins to fail, operators often report intermittent gear slippage during acceleration due to fastener migration. Another common symptom is low hydraulic pressure warnings on the dash, as loose hardware can block oil passages. You may also notice audible rattling from the bell housing when the transmission is in neutral, indicating that retaining clips or pins have worked free. Finally, chronic oil seepage around the main case seam is a telltale sign that the included gaskets or seals have degraded.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.183.390 |
| OEM Reference | ZF 4657.183.390 |
| Material Composition | Steel alloy with zinc plating (fasteners); Nitrile rubber (seals) |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Kit Contents | Bolts, washers, pins, seals, and retaining rings |
| Torque Specification | 45 Nm (33 ft-lb) for main fasteners |
| Operating Temperature Range | -40°C to +120°C (-40°F to +248°F) |
Compatibility
This genuine ZF 4657.183.390 LOOSE PARTS kit is engineered for the WG 211 Series transmission family. It is also compatible with the WG180, WG200, and WG210 models that share the same housing architecture. The kit is designed to work in conjunction with the TRANSMISSION HOUSING (part 4657101049) and the HOUS.FRONT SECT (part 4657301130). For rear-end assembly, it mates with the HOUSING REAR PART (4657301131) and uses the CYLINDRICAL PIN (0631306816) for alignment. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657301130 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657301131 | HOUSING REAR PART | Rear section of the transmission housing |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636102489 | CAP SCREW | Fastener for valve body attachment |
| 4656301148 | FIXING PLATE | Retains clutch pack assembly |
| 0636102463 | CAP SCREW | Secures oil pump cover |
| 4657201133 | SCREEN SHEET | Filter mesh for hydraulic fluid |
| 0636115287 | CAP SCREW | Mounting bolt for rear housing |
| 4657301065 | PLATE | Spacer plate for clutch piston |
Frequently Asked Questions
Q: Can I reuse the existing fasteners instead of buying the ZF 4657.183.390 kit?
A: No. ZF specifies that all fasteners in this kit are single-use torque-to-yield designs. Reusing them risks fastener fatigue and sudden failure under load.
Q: Does this kit include the seals for the front and rear housing?
A: Yes. The 4657.183.390 LOOSE PARTS kit contains all necessary O-rings and gaskets for the HOUS.FRONT SECT and HOUSING REAR PART interfaces.
Q: How do I confirm this part fits my WG211 transmission?
A: Check the stamped serial number on the TRANSMISSION HOUSING. If it begins with “WG211” or “WG200,” this kit is compatible. For mixed-model builds, verify the CYLINDRICAL PIN alignment holes match your housing.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
