Overview
The ZF 4657.183.333 LOOSE PARTS kit is a critical service component designed specifically for the WG211 transmission series. This genuine OEM assembly contains the internal fasteners, seals, and positioning elements that secure the transmission’s main structural housings. As a loose parts set, it ensures that the TRANSMISSION HOUSING remains properly aligned with the HOUS.FRONT SECT and the HOUSING REAR PART. The SKU 4657.183.333 is factory-matched to the WG211 assembly, eliminating guesswork during rebuilds. Without this kit, the CYLINDRICAL PIN and other alignment hardware cannot be correctly torqued, leading to premature wear on the gear train.
Symptoms of Failure
When the ZF 4657.183.333 LOOSE PARTS begin to degrade, operators typically notice oil seepage at the housing joint lines between the front and rear sections. A second common symptom is intermittent gear slipping under load, caused by micro-movement of the housing halves. Third, you may detect abnormal metallic rattling from the bell housing area during deceleration. Finally, hard shifting between 2nd and 3rd gear often points to loose fasteners in this kit, as the housing alignment drifts out of specification.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4657.183.333 |
| Material | Case-hardened steel / Nitrile seals |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 40 mm |
| OEM Reference | ZF 4657.183.333 |
| Torque Specification | 85 Nm ± 5 Nm |
Compatibility
This LOOSE PARTS kit is engineered for the WG211 series but is also compatible with the WG180, WG200, and WG250 transmission models that share the same three-piece housing architecture. It directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT. For full assembly, you will also need the HOUSING REAR PART and the CYLINDRICAL PIN to complete the structural alignment. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 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 halves |
| 0636102489 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Secures internal components |
| 0636102463 | CAP SCREW | Secondary fastener for housing |
| 4657201133 | SCREEN SHEET | Filter mesh for oil flow |
| 0636115287 | CAP SCREW | Torque-specific mounting bolt |
| 4657301065 | PLATE | Spacer plate for clutch pack |
Frequently Asked Questions
Q: Can I reuse the old fasteners from my WG211 instead of buying the 4657.183.333 kit?
A: No. ZF specifies that all fasteners in this LOOSE PARTS kit are single-use torque-to-yield bolts. Reusing them risks housing misalignment and oil leaks.
Q: Does this kit include the CYLINDRICAL PIN (0631306816)?
A: No. The 4657.183.333 kit contains the loose fasteners and seals, but the alignment pin must be ordered separately via the link above.
Q: What is the typical service interval for replacing these parts?
A: We recommend replacing the 4657.183.333 LOOSE PARTS whenever the transmission housing is separated for a major overhaul, typically every 500,000 km or 10,000 operating hours.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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