Overview
The ZF 4642.301.207 TRANSMISSION HOUSING is the primary structural casing for the WG150 series transmission, serving as the rigid backbone that encloses the gear train, clutch packs, and hydraulic valve body. This OEM genuine part (SKU: 4642.301.207) precisely aligns all rotating components and maintains correct oil flow paths under high torque loads. Manufactured from high-strength cast iron, it withstands extreme thermal cycling and mechanical stress. When replacing this housing, technicians often also inspect the 4642101047: TRANSMISSION HOUSING for compatibility in adjacent assemblies.
Symptoms of Failure
- External oil seepage at mating flanges – Cracks or porosity in the housing cause persistent transmission fluid leaks, often visible as drips near the bellhousing or PTO ports.
- Abnormal gear engagement noise – A warped housing misaligns bearing bores, producing a low-frequency rumbling or whining sound during shifts under load.
- Intermittent clutch slip or delayed engagement – Internal cracks disrupt oil gallery pressure, leading to soft shifts or temporary loss of drive in forward gears.
- Contaminated oil from casting debris – Internal surface spalling releases metallic particles into the fluid, accelerating wear on pumps and valve bodies.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4642.301.207 |
| Material | GJL-250 Cast Iron (EN 1561) |
| Overall Length | 620 mm |
| Overall Width | 410 mm |
| Overall Height | 380 mm |
| Dry Weight | 34.5 kg |
| Bolt Torque Spec | 85 Nm (M12 fasteners) |
| OEM Reference | ZF 4642.301.207 |
Compatibility
This housing is specifically engineered for the ZF WG150 series, but its mounting pattern and oil circuit design also suit the WG180 and WG200 models when used with the correct adapter kit. It is not backward-compatible with WG120 or WG130 housings due to different bellhousing bolt patterns. For complete assembly, ensure the 0730365067: TYPE PLATE is affixed for proper identification, and secure the housing using 0631311009: GROOVED STUD fasteners. The internal oil strainer, 4642301168: SCREEN SHEET, must be replaced concurrently to prevent debris from entering the new housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101047 | TRANSMISSION HOUSING | Alternate housing variant for WG150 |
| 0730365067 | TYPE PLATE | Identification plate for housing |
| 0631311009 | GROOVED STUD | Fastener for housing attachment |
| 4642301168 | SCREEN SHEET | Primary oil strainer |
| 4642301169 | SCREEN SHEET | Secondary oil strainer |
| 0636100621 | HEXAGON SCREW | M12 mounting bolt |
| 4642301186 | SCREEN SHEET | Fine mesh filter |
| 4644106300 | SHIFT SYSTEM | Hydraulic shift actuator |
| 4644306500 | COVER PLATE | Housing access cover |
| 4644159303 | SHIFT SYSTEM | Alternate shift mechanism |
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