Overview
The ZF 4646.301.095 HOUSING is a critical structural component designed for the WG 250, WG 260, and WG 310 transmission series. This OEM genuine part serves as the primary enclosure that supports the gear train and hydraulic valve body, ensuring precise alignment of internal shafts and bearings. Located in the mid-section of the transmission assembly, the housing (SKU: 4646.301.095) channels lubrication oil flow and absorbs torsional loads during operation. It interfaces directly with the 4646101028: TRANSMISSION HOUSING to form a sealed, pressurized environment essential for clutch pack engagement and torque conversion.
Symptoms of Failure
- Oil seepage at the housing seam: When the 4646.301.095 housing warps or develops micro-fractures, transmission fluid leaks from the mating surface, often mistaken for a pan gasket failure.
- Delayed gear engagement under load: A cracked housing allows air ingress into the hydraulic circuit, causing soft shifts or hesitation when accelerating in WG 250 series transmissions.
- Metallic grinding noises from the bell housing area: Bearing bore wear in this housing leads to shaft misalignment, producing a distinct chatter during gear changes.
- Contaminated fluid with aluminum particles: Internal wear of the housing casting releases debris into the oil, visible as glitter in the sump during routine inspections.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4646.301.095 |
| Material | High-pressure die-cast aluminum alloy (A380) |
| Weight | 4.85 kg (10.7 lbs) |
| Overall Dimensions | 410 mm x 285 mm x 175 mm |
| Bolt Hole Pattern | 12-point, M10 x 1.5 thread |
| Surface Treatment | Clear anodized with anti-corrosion coating |
| OEM Reference | ZF 4646.301.095 (Genuine) |
Compatibility
This housing is engineered for ZF’s WG series powershift transmissions, specifically the WG 180, WG 200, WG 250, WG 260, and WG 310 models. It is a direct fit for all WG 250 variants (including WG 250-5 and WG 250-6) and the heavy-duty WG 310 used in construction loaders. The 4646.301.095 housing also retrofits into certain WG 180 units when paired with the 4646301087: COVER and 0636015304: HEXAGON SCREW kit. For proper sealing, always install with new 0636101828: CAP SCREW fasteners to prevent thread galling in the aluminum housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101028 | TRANSMISSION HOUSING | Main structural body for gear cluster |
| 4646301087 | COVER | Seals the rear access port |
| 0636015304 | HEXAGON SCREW | M10 fastener for housing joints |
| 0636101828 | CAP SCREW | High-tensile bolt for cover plate |
| 4646301102 | COVER SHEET | Thin gasket shield for valve body |
| 4646301098 | COVER SHEET | Secondary sealing layer |
| 0730365125 | TYPE PLATE | Identification tag with serial number |
| 0631311009 | GROOVED STUD | Alignment dowel for housing centering |
| 0636101193 | CAP SCREW | Short bolt for oil channel covers |
| 0636010174 | HEXAGON SCREW | M8 fastener for auxiliary brackets |
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