Overview
The ZF 4616.301.277 HOUSING is a critical structural component designed specifically for the WG 65 Series transmission. This OEM genuine part encloses and protects the internal gear sets, shafts, and hydraulic circuits, ensuring precise alignment and oil containment under high-torque conditions. As a central casing element, it interfaces directly with the 4616105413 OUTPUT assembly and the 4616101117 TRANSMISSION HOUSING to form a sealed, rigid drivetrain unit. The SKU 4616.301.277 is manufactured to ZF’s original specifications, guaranteeing a direct fit and long service life for heavy-duty industrial applications.
Symptoms of Failure
- External oil leaks around the casing seam: When the housing develops cracks or porosity, transmission fluid seeps out, leading to low oil levels and potential gear damage.
- Abnormal gear noise or whining during operation: A warped or misaligned housing causes bearing bores to shift, resulting in gear tooth contact issues and increased vibration.
- Intermittent gear slipping or delayed engagement: Internal stress fractures can distort hydraulic passages, reducing clutch pack pressure and causing erratic shifting behavior.
- Contaminated oil from debris ingress: A compromised housing allows dirt and moisture to enter the transmission, accelerating wear on internal components like the 0636011038 HEXAGON SCREW fasteners and seals.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4616.301.277 |
| Material | High-grade cast aluminum alloy (A356-T6) |
| Weight | 12.4 kg (27.3 lbs) |
| Overall Dimensions | 420 mm x 310 mm x 180 mm |
| OEM Reference | ZF WG 65 Series |
| Bolt Hole Pattern | 12 x M12 on 280 mm PCD |
| Surface Treatment | Corrosion-resistant anodized coating |
Compatibility
This housing is engineered for the ZF WG 65 series transmission family. It is directly compatible with models including WG65, WG120, WG180, and WG200, where it serves as the main structural carrier for the output section. The part mates precisely with the 4616203017 OUTPUT FLANGE and secures internal components using the 0636011038 HEXAGON SCREW kit. Always verify your transmission serial number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers torque from the housing to the driveline |
| 4616203017 | OUTPUT FLANGE | Connects output shaft to the driveshaft yoke |
| 4616101117 | TRANSMISSION HOUSING | Main casing enclosing gear train and valve body |
| 0636011038 | HEXAGON SCREW | Secures housing halves together |
| 0636016015 | HEXAGON SCREW | Fastens output flange to housing |
| 0631306085 | CYLINDRICAL PIN | Aligns housing sections during assembly |
| 0634313118 | O-RING | Seals oil passages between housing and cover |
| 0732611049 | FILTER INSERT | Traps debris in the hydraulic circuit |
| 0634303718 | O-RING | Prevents fluid leaks at the output flange joint |
| 0636610082 | STUD | Provides threaded mounting points for accessories |
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