Overview
The ZF 4616.101.416 TRANSMISSION HOUSING is the primary structural casing for the WG65 series, serving as the rigid foundation that encloses the gear train, clutch packs, and hydraulic circuits. This OEM genuine part (SKU: 4616.101.416) precisely aligns all rotating components and maintains critical oil pressure pathways within the transmission assembly. As the central housing, it interfaces directly with the 4616105415: OUTPUT shaft assembly and the 4616303144: OUTPUT FLANGE, ensuring torque transfer remains concentric and vibration-free under heavy loads.
Symptoms of Failure
- Persistent oil seepage from mating surfaces: A cracked or warped housing often causes fluid to escape around the 0636011038: HEXAGON SCREW fastening points, leading to low transmission fluid levels and eventual gear slippage.
- Abnormal gear engagement noise: When the housing loses dimensional stability, bearing bores become misaligned, producing a distinct whining or grinding sound during shifts—a classic sign of housing fatigue.
- Intermittent loss of hydraulic pressure: Internal cracks in the housing’s oil galleries cause pressure drops, resulting in delayed clutch engagement or erratic shifting behavior under load.
- Visible hairline fractures near bolt holes: Stress fractures typically appear around the flange mounting area, often accompanied by metallic debris in the oil pan.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.101.416 |
| Material | High-strength aluminum alloy (A356-T6) |
| Weight | 14.2 kg (31.3 lbs) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 275 mm |
| OEM Reference | ZF 4616.101.416 |
| Bolt Torque Spec | 85 Nm (62.7 lb-ft) |
Compatibility
This housing is engineered exclusively for the ZF WG65 series transmissions. While the WG65 is the primary application, the 4616.101.416 housing shares mounting patterns with the WG180 and WG200 models when used with the appropriate 4616101094: TRANSMISSION HOUSING adapter kit. It is not compatible with WG120 or WG250 series without significant modification. Always verify your transmission model tag before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105415 | OUTPUT | Transfers torque from housing to driveshaft |
| 4616303144 | OUTPUT FLANGE | Connects output shaft to driveline yoke |
| 4616101094 | TRANSMISSION HOUSING | Alternate housing variant for WG180/WG200 |
| 0636011038 | HEXAGON SCREW | M10 fastener for housing-to-bellhousing joint |
| 0636011118 | HEXAGON SCREW | M12 fastener for output flange retention |
| 0636016015 | HEXAGON SCREW | M8 fastener for oil pan attachment |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing-to-case positioning |
| 0634313118 | O-RING | Seals output shaft bore in housing |
| 0732611049 | FILTER INSERT | Internal oil filter mounted inside housing |
| 0634303718 | O-RING | Seals housing-to-valve body interface |
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