Overview
The ZF 4657.183.331 LOOSE PARTS for WG211 is a critical internal component kit designed specifically for the WG 211 Series transmission. This genuine OEM part serves as a collection of essential loose hardware and fasteners that secure and stabilize key assemblies within the gearbox. Positioned within the main housing structure, the 4657.183.331 ensures that adjacent components remain properly torqued and aligned under high-load conditions. By maintaining structural integrity, this kit directly supports the longevity of the entire transmission system. The SKU 4657.183.331 is a direct replacement for worn or missing hardware, guaranteeing a factory-spec fit.
Symptoms of Failure
- Transmission oil leaks at housing seams: When the loose parts kit degrades, fasteners may loosen, causing pressurized oil to seep from the joint between the TRANSMISSION HOUSING and the HOUS.FRONT SECT.
- Gear slipping under load: Worn or missing hardware can allow the HOUSING REAR PART to shift slightly, misaligning gear sets and causing intermittent slipping during acceleration.
- Abnormal vibration or rattle: A loose CYLINDRICAL PIN or fastener from this kit can create audible metallic noise, especially at low RPMs.
- Difficulty shifting gears: If the internal fasteners lose torque, the shift linkage may bind, resulting in hard or imprecise gear engagement.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4657.183.331 |
| OEM Reference | ZF 4657.183.331 |
| Material | High-tensile steel with corrosion-resistant coating |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Dimensions (kit) | Various; includes bolts, pins, and washers |
| Compatible Series | WG 211 |
Compatibility
This genuine ZF loose parts kit is engineered primarily for the WG 211 Series transmission. It is also compatible with select models in the WG180, WG200, and WG250 families where the housing architecture matches. The 4657.183.331 is designed to work in conjunction with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure a secure fit. Always verify your transmission model number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 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 housing attachment |
| 4656301148 | FIXING PLATE | Secures internal components in position |
| 0636102463 | CAP SCREW | High-strength bolt for critical joints |
| 4657201133 | SCREEN SHEET | Filter mesh for oil flow protection |
| 0636115287 | CAP SCREW | Fastener for valve body or cover |
| 4657301065 | PLATE | Reinforcement plate for housing |
Frequently Asked Questions
Q: Can I reuse old fasteners from my WG211 transmission instead of buying this kit?
A: No. ZF recommends replacing all loose parts with the 4657.183.331 kit because original fasteners can stretch or corrode, leading to torque loss and potential oil leaks.
Q: Is this kit compatible with the WG180 transmission?
A: While primarily designed for the WG211, this kit may fit WG180 and WG200 models that share the same housing bolt pattern. Always cross-reference your transmission serial number with the TRANSMISSION HOUSING specifications.
Q: What tools are needed to install the 4657.183.331?
A: Installation requires standard metric sockets, a torque wrench, and thread locker. Refer to the ZF service manual for exact torque values for the CAP SCREW and other fasteners.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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