Overview
The ZF 4616.101.117 TRANSMISSION HOUSING is the central structural component of the WG65 series transmission, serving as the rigid enclosure that houses the planetary gear sets, clutches, and hydraulic control system. As an OEM genuine part, this housing ensures precise alignment of internal components and withstands extreme torsional loads during operation. The SKU 4616.101.117 is specifically machined to accommodate the output shaft assembly, including the 4616105413: OUTPUT and the 4616203017: OUTPUT FLANGE, which mount directly into its rear bearing bore. This housing also provides threaded mounting points for critical fasteners such as the 0636011038: HEXAGON SCREW and the 0636016015: HEXAGON SCREW, ensuring a leak-free seal against the main casing.
Symptoms of Failure
- External oil seepage at housing seams: Cracks or porosity in the housing casting cause transmission fluid to weep from bolt holes or mating surfaces, often mistaken for a simple gasket failure.
- Abnormal gear engagement noise: Warpage or bearing bore wear in the housing allows the output shaft to misalign, producing a low-frequency rumble or clunking during shifts under load.
- Persistent fluid contamination: Internal fractures allow debris from the housing material to circulate through the hydraulic system, leading to clogged filters and erratic clutch application.
- Vibration during acceleration: A compromised housing loses its ability to dampen torsional vibrations, transmitting harshness through the driveline and accelerating wear on the output flange.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.101.117 |
| Material | High-grade aluminum alloy (A356-T6) |
| Weight | 14.2 kg (31.3 lbs) |
| Overall Length | 485 mm |
| Mounting Bolt Pattern | 8 x M12 on 180 mm PCD |
| OEM Reference | ZF 4616.101.117 |
| Bearing Bore Diameter | 120 mm (output side) |
Compatibility
This housing is engineered exclusively for the ZF WG65 series of powershift transmissions, commonly found in heavy-duty construction and agricultural equipment. While the WG65 is the primary application, the housing design shares bolt patterns with the WG180 and WG200 models when used with specific adapter plates. Always verify the casting number against your transmission’s serial plate before installation. The housing interfaces directly with the output shaft (4616105413) and requires the hexagon screws (0636011038) for secure mounting to the main case.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | Output | Transfers torque from planetary gearset to output flange |
| 4616203017 | Output Flange | Connects driveshaft to transmission output |
| 0636011038 | Hexagon Screw | M10 fastener for housing-to-case joint |
| 0636016015 | Hexagon Screw | M12 fastener for output flange retention |
| 0631306085 | Cylindrical Pin | Alignment dowel for housing positioning |
| 0634313118 | O-Ring | Seals oil passage between housing and valve body |
| 0732611049 | Filter Insert | Hydraulic oil filtration element |
| 0634303718 | O-Ring | Seals housing-to-pump interface |
| 0636610082 | Stud | Threaded stud for accessory mounting |
| 4616301221 | Tube | Oil return tube from housing to sump |
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