Overview
The ZF 4616.306.079 INTERMEDIATE SHEET is a critical structural component within the WG65 series transmission. It functions as a precision-machined separator plate, positioned between the main gearset and the clutch housing assembly. This OEM genuine part ensures correct axial clearance and supports the load distribution across planetary gear sets. The SKU 4616.306.079 is engineered to maintain exacting tolerances, preventing misalignment of the OUTPUT shaft and protecting the TRANSMISSION HOUSING from stress fractures during high-torque operations.
Symptoms of Failure
- Delayed or harsh gear engagement: A warped intermediate sheet disrupts the hydraulic balance, causing sluggish shifts between forward and reverse gears.
- Metallic grinding noise from the transmission center: Worn material allows the planetary carrier to contact the OUTPUT FLANGE, producing a distinct scraping sound under load.
- Low oil pressure warnings: Cracks in the sheet create internal leakage paths, reducing line pressure and triggering dashboard alerts.
- Oil seepage around the bell housing: Distortion of the sheet compromises the seal surface, leading to fluid migration past the HEXAGON SCREW fasteners.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.306.079 |
| Material | High-tensile steel alloy (DIN 1.7225) |
| Outer Diameter | 210 mm |
| Inner Diameter | 85 mm |
| Thickness | 4.5 mm |
| Weight | 0.85 kg |
| OEM Reference | ZF 4616.306.079 |
| Surface Finish | Ground, anti-corrosion coated |
Compatibility
This intermediate sheet is specifically designed for the WG 65 Series transmission family. It is directly compatible with models including the WG65, WG80, WG120, WG180, and WG200. Always verify the transmission serial number against the OEM parts catalog before installation. The sheet interfaces directly with the OUTPUT assembly and must be torqued using the specified HEXAGON SCREW pattern to avoid distortion.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers torque from the gearset to the driveline |
| 4616203017 | OUTPUT FLANGE | Connects the output shaft to the driveshaft |
| 4616101117 | TRANSMISSION HOUSING | Encloses and supports all internal components |
| 0636011038 | HEXAGON SCREW | Secures the intermediate sheet to the housing |
| 0636016015 | HEXAGON SCREW | Fastener for the output flange assembly |
| 0631306085 | CYLINDRICAL PIN | Aligns the intermediate sheet during installation |
| 0634313118 | O-RING | Seals the hydraulic circuit between plates |
| 0732611049 | FILTER INSERT | Captures debris from the oil circulation |
| 0634303718 | O-RING | Prevents external oil leaks at the housing joint |
| 0636610082 | STUD | Provides threaded anchor points for the housing |
