Overview
The ZF 4616.101.405 TRANSMISSION HOUSING is a critical structural component engineered specifically for the WG 65 series. This OEM genuine part forms the rigid outer shell that encloses the gear train, valve body, and hydraulic circuits, ensuring precise alignment of internal rotating assemblies. As the primary load-bearing casing, the 4616.101.405 housing protects sensitive components from debris and maintains oil pressure integrity. The SKU 4616.101.405 is manufactured to ZF’s original specifications, guaranteeing a direct fit and long service life in heavy-duty applications.
Symptoms of Failure
- External oil seepage around mating surfaces: A cracked or warped housing often causes transmission fluid to leak from the bell housing or side cover joints, leading to low fluid levels and eventual gear slipping.
- Abnormal gear engagement noise: When the housing loses dimensional stability, bearing bores become misaligned, producing a distinct whining or grinding sound during acceleration or deceleration.
- Persistent hydraulic pressure loss: Hairline fractures in the housing can disrupt internal oil galleries, resulting in delayed shifts or harsh clutch engagement under load.
- Vibration at highway speeds: A compromised housing fails to dampen torsional forces, transmitting excessive vibration through the driveline and into the chassis.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4616.101.405 |
| Material | High-grade aluminum alloy (A356-T6) |
| Weight | 18.7 kg (41.2 lbs) |
| Overall Length | 620 mm |
| Overall Width | 410 mm |
| Overall Height | 380 mm |
| Bolt Hole Pattern | 12-point, M12 x 1.75 |
| OEM Reference | ZF 4616.101.405 |
Compatibility
This housing is designed for ZF WG 65 series transmissions, which are commonly used in medium-duty trucks, buses, and off-highway equipment. Based on the part architecture, it also fits select models in the WG180 and WG200 families where the bell housing pattern and oil pump interface are shared. Always verify the casting number on your original housing before ordering. For complete assembly, this housing works with the 4616101100 TRANSMISSION HOUSING for dual-casing configurations. Secure installation requires the 0636011038 HEXAGON SCREW, 0636011118 HEXAGON SCREW, and 0636016015 HEXAGON SCREW to achieve proper clamp load.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101100 | Transmission Housing | Secondary casing for dual-housing assemblies |
| 0636011038 | Hexagon Screw | M10 bolt for housing-to-bell housing joint |
| 0636011118 | Hexagon Screw | M12 bolt for main housing flange |
| 0636016015 | Hexagon Screw | M8 bolt for oil pan attachment |
| 0631306085 | Cylindrical Pin | Alignment dowel for housing halves |
| 0634313118 | O-Ring | Seals oil passage between housing sections |
| 0636304019 | Screw Plug | Closes fill/drain ports in housing |
| 0634801152 | Sealing Ring | Copper gasket for plug threads |
| 0732611049 | Filter Insert | Internal suction strainer for oil pump |
| 0634303718 | O-Ring | Seals filter housing to main casing |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
