Overview
The ZF 4616.303.011 OIL FEEDING BUSH is a precision-engineered component designed for the WG 65 series transmission. This genuine OEM part ensures consistent lubrication delivery to the rotating shaft assemblies, reducing friction and preventing thermal damage during high-torque operations. Positioned within the main valve body housing, the SKU 4616.303.011 acts as a critical conduit for pressurized oil flow, directly supporting gear engagement and clutch pack cooling. When paired with a robust TRANSMISSION HOUSING, this bushing maintains hydraulic integrity across the entire drivetrain.
Symptoms of Failure
- Oil leaks around the shaft seal area: A worn bushing creates gaps that allow transmission fluid to escape, often visible as drips near the bell housing.
- Delayed gear engagement or slipping: Insufficient oil pressure due to bushing wear leads to soft shifts or hesitation when accelerating.
- Whining or grinding noises from the transmission: Metal-on-metal contact from inadequate lubrication produces audible distress during operation.
- Overheating transmission fluid: Restricted oil flow causes the system to run hotter than normal, triggering warning lights or burnt fluid odor.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.303.011 |
| Material | Sintered bronze with PTFE impregnation |
| Inner Diameter | 28.5 mm |
| Outer Diameter | 35.0 mm |
| Length | 22.0 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 4616.303.011 |
| Operating Pressure | Up to 18 bar |
Compatibility
This oil feeding bushing is primarily engineered for the ZF WG 65 series, but it also fits select models in the WG180 and WG200 families due to shared hydraulic architecture. It is a direct replacement for transmissions used in heavy-duty trucks, construction loaders, and agricultural machinery. Always verify your transmission model number before installation. For proper assembly, secure the bushing using HEXAGON SCREW (0636011038), HEXAGON SCREW (0636011118), and HEXAGON SCREW (0636016015) to guarantee torque specifications are met.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101059 | TRANSMISSION HOUSING | Encloses and supports internal gear sets |
| 0636011038 | HEXAGON SCREW | Secures housing and valve body assemblies |
| 0636011118 | HEXAGON SCREW | Fastens oil pump and filter components |
| 0636016015 | HEXAGON SCREW | Mounts clutch pack retainers |
| 0631306085 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0634313118 | O-RING | Seals oil passages between components |
| 0636304019 | SCREW PLUG | Closes test ports and drain holes |
| 0634801152 | SEALING RING | Prevents external oil leakage at joints |
| 0732611049 | FILTER INSERT | Captures debris from hydraulic fluid |
| 0634303718 | O-RING | Provides static seal for valve body covers |
