Overview
The ZF 4657.183.258 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 positioning elements required to secure and align the main structural housings of the gearbox. As a loose parts set, it ensures that the TRANSMISSION HOUSING remains properly mated to the internal clutch and planetary assemblies during high-torque operation. The SKU 4657.183.258 is factory-matched to the WG211 platform, guaranteeing correct thread pitch and material hardness for long service intervals.
Symptoms of Failure
When the 4657.183.258 LOOSE PARTS begin to degrade, operators typically notice oil seepage at the housing joint lines, particularly around the bell housing interface. A second common failure symptom is intermittent gear engagement or delayed shifting, caused by micro-movement of the HOUS.FRONT SECT relative to the main case. You may also detect abnormal metallic rattling during deceleration, indicating that the HOUSING REAR PART has lost its clamping force. Finally, vibration through the transmission mount often points to loose hardware within this kit, which can accelerate wear on the CYLINDRICAL PIN alignment dowels.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4657.183.258 |
| OEM Reference | ZF WG211 Series |
| Material Composition | High-tensile steel with zinc-nickel plating |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Kit Contents | Bolts, washers, dowel pins, sealing rings |
| Torque Specification | 85 Nm ± 5 Nm (per ZF service manual) |
Compatibility
This genuine OEM loose parts kit is engineered for the ZF WG211 transmission family. It is also fully compatible with the WG180, WG200, and WG210 series models that share the same housing architecture. The kit directly replaces the original fasteners in the TRANSMISSION HOUSING assembly and interfaces with the HOUS.FRONT SECT and HOUSING REAR PART without modification. Always verify your transmission serial number against ZF’s application guide before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural case for gear sets |
| 4657301130 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657301131 | HOUSING REAR PART | Rear section supporting output bearing |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636102489 | CAP SCREW | M10 x 30mm flange bolt |
| 4656301148 | FIXING PLATE | Locks cap screws in position |
| 0636102463 | CAP SCREW | M8 x 25mm hex head bolt |
| 4657201133 | SCREEN SHEET | Filter mesh for oil return |
| 0636115287 | CAP SCREW | M12 x 40mm high-strength bolt |
| 4657301065 | PLATE | Reinforcement plate for rear housing |
Frequently Asked Questions
Q: Can I reuse the original bolts from my old loose parts kit?
No. ZF specifies that all fasteners in the 4657.183.258 kit are single-use torque-to-yield bolts. Reusing them risks joint failure and oil leaks.
Q: Does this kit include the CYLINDRICAL PIN for alignment?
Yes. The kit contains the 0631306816 CYLINDRICAL PIN as a standard component for precise housing alignment.
Q: Is the 4657.183.258 compatible with the WG180 transmission?
Yes, it is fully compatible with WG180, WG200, WG210, and WG211 models that use the same housing bolt pattern.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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