Overview
The ZF 4657.183.133 LOOSE PARTS kit is a critical service package designed for the WG 210 series transmission. This genuine OEM assembly contains the essential fasteners, seals, and positioning elements required to secure and align the main structural housings during a rebuild or overhaul. Specifically, this kit provides the hardware that interfaces between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, ensuring a rigid, leak-free assembly. The SKU 4657.183.133 is your direct OEM reference for restoring factory tolerances in the WG210 gearbox.
Symptoms of Failure
When the loose parts in this assembly degrade or are lost during service, several distinct failure modes emerge. Watch for these specific symptoms to identify a failing 4657.183.133 kit:
- Transmission housing oil seepage: Worn or missing fasteners cause the mating surfaces between the HOUSING REAR PART and the main case to separate, leading to chronic fluid leaks.
- Gear engagement slop or delayed shifting: Loose CYLINDRICAL PIN alignment allows the housing sections to shift under load, causing misalignment of the gear train.
- Abnormal vibration at highway speeds: Degraded hardware in the LOOSE PARTS set fails to dampen structural resonance, transmitting vibration through the driveline.
- Bolt torque loss after service: If the original fasteners are reused, they may stretch, causing the front and rear housing sections to loosen over time.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.183.133 |
| Material Composition | Steel (fasteners), Nitrile (seals) |
| Kit Weight (approx.) | 0.45 kg (1.0 lb) |
| Fastener Grade | 10.9 (high tensile) |
| OEM Reference | ZF WG210 Service Kit |
Compatibility
This LOOSE PARTS kit is engineered specifically for the ZF WG 210 series, but it also shares fastener geometry with the WG180 and WG200 models. The kit includes the CAP SCREW and FIXING PLATE necessary for the WG210’s unique housing bolt pattern. For earlier WG180 units, verify the SCREEN SHEET (4657301032) and SCREEN SHEET (4657301033) dimensions match your oil pan. The kit is not backward-compatible with the WG120 series without additional CAP SCREW (0636100803) adapters.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural case for gear assembly |
| 4657201027 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201020 | HOUSING REAR PART | Rear housing for output flange support |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Locking plate for bolt retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 fastener for heavy-duty applications |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing |
Frequently Asked Questions
Q: Can I reuse the old fasteners from my WG210 instead of buying the 4657.183.133 kit?
A: No. ZF specifies that all fasteners in this LOOSE PARTS kit are single-use torque-to-yield bolts. Reusing them risks thread galling and loss of clamp load, leading to the oil leaks and vibration symptoms described above.
Q: Does this kit include the CYLINDRICAL PIN for housing alignment?
A: Yes. The 4657.183.133 kit contains the CYLINDRICAL PIN (0631306792) necessary to align the HOUS.FRONT SECT with the main housing during assembly.
Q: Is the 4657.183.133 compatible with the WG180 transmission?
A: The kit is primarily designed for the WG210, but the CAP SCREW and FIXING PLATE dimensions match the WG180 bolt pattern. However, you must verify the SCREEN SHEET (4657301032) fits your oil pan depth before installation.
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Phone: +86 158 2286 3467 |
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