Overview
The ZF 4642.301.208 TRANSMISSION HOUSING is a critical structural component engineered specifically for the WG150 series. This OEM genuine part forms the rigid outer shell that encloses the gear train, valve body, and hydraulic circuits within the transmission assembly. As the primary load-bearing casing, it ensures precise alignment of internal shafts and bearings while containing transmission fluid under operational pressure. The SKU 4642.301.208 is manufactured to ZF’s exacting tolerances, providing a direct replacement that maintains factory-specified clearances for optimal torque transfer and shift quality. This housing integrates seamlessly with the 4642101108 TRANSMISSION HOUSING in multi-section configurations, and it accepts the 0730365125 TYPE PLATE for proper identification.
Symptoms of Failure
- Persistent oil seepage at housing mating surfaces: When the 4642.301.208 housing develops cracks or warpage, transmission fluid escapes around the bell housing or adapter joints, often leaving visible drips on the undercarriage.
- Gear engagement hesitation or slipping under load: A compromised housing can distort internal bore alignment, causing clutch packs to misalign and resulting in delayed shifts or power loss during acceleration.
- Unusual metallic grinding noises from the transmission case: Bearing raceways within the housing may wear unevenly, producing a low-frequency rumble or high-pitched whine that intensifies with vehicle speed.
- Contaminated fluid with metallic debris: Internal fractures in the housing can shed aluminum particles into the oil, which then circulate through the valve body and accelerate wear on components like the 4642301168 SCREEN SHEET.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4642.301.208 |
| Material | Die-cast aluminum alloy (A380) |
| Weight | 14.2 kg (31.3 lbs) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 275 mm |
| Bolt Hole Pattern | 8 x M12 on 180 mm PCD |
| OEM Reference | ZF 4642.301.208 |
| Sealing Surface Finish | Ra 0.8 µm |
Compatibility
This housing is primarily designed for the ZF WG150 series transmissions, which are commonly found in medium-duty commercial vehicles and off-highway equipment. Based on the part’s structural design and mounting geometry, it is also compatible with the WG180 and WG200 models when used with the appropriate 4642306254 ADAPTER. The housing accommodates all standard WG150 internal components, including the 0631311009 GROOVED STUD for secure fastening. For multi-plate clutch configurations, the 4642301168 SCREEN SHEET and 4642301169 SCREEN SHEET are recommended for filtration. Always verify compatibility with your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101108 | TRANSMISSION HOUSING | Secondary housing section for multi-case assemblies |
| 0730365125 | TYPE PLATE | Identification plate with serial number |
| 0631311009 | GROOVED STUD | Threaded fastener for housing alignment |
| 4642301168 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4642301169 | SCREEN SHEET | Coarse mesh pre-filter for pump intake |
| 0636100621 | HEXAGON SCREW | M10 x 30 mm housing mounting bolt |
| 0630361029 | SEALING CAP | Plugs unused hydraulic ports |
| 4642306254 | ADAPTER | Interface plate for cross-model fitment |
| 0634303340 | O-RING | Housing-to-adapter static seal |
| 4642301186 | SCREEN SHEET | Secondary fine mesh filter |
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