Overview
The ZF 4616.328.003 SPLINED BUSH is a precision-engineered component designed for the WG 65 Series transmission. This OEM genuine part serves as a critical interface within the output shaft assembly, ensuring torque transfer and rotational alignment between the transmission housing and the output flange. The SKU 4616.328.003 is machined from high-strength steel to withstand the axial and radial loads inherent in heavy-duty industrial applications. It sits directly between the 4616105402: OUTPUT and the 4005303005: OUTPUT FLANGE, acting as a wear-resistant bushing that reduces friction and maintains spline integrity over extended service intervals.
Symptoms of Failure
When the ZF 4616.328.003 splined bush wears out, operators typically notice these specific failure modes:
- Oil leaks at the output shaft seal – Worn splines allow lateral movement, compromising the seal between the 4616101119: TRANSMISSION HOUSING and the output assembly.
- Gear slipping under load – Excessive clearance in the splined connection causes intermittent torque loss during acceleration or heavy hauling.
- Metallic grinding noise from the rear of the transmission – Metal-on-metal contact from a degraded bushing creates a distinct whining or grinding sound, especially at low speeds.
- Vibration in the driveline – Uneven wear on the splined bush leads to rotational imbalance, felt as shuddering through the chassis.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.328.003 |
| Material | Case-hardened alloy steel |
| Inner Diameter | 38.0 mm |
| Outer Diameter | 52.0 mm |
| Length | 45.0 mm |
| Weight | 0.35 kg |
| OEM Reference | ZF 4616.328.003 |
| Surface Finish | Ground and phosphated |
Compatibility
This splined bush is engineered for the ZF WG 65 Series transmission family. It is directly compatible with models including WG65, WG80, WG100, WG120, WG150, WG180, and WG200. The part also fits select WG 55 and WG 70 variants where the output shaft spline count matches. Always verify the spline profile against your existing 0636011038: HEXAGON SCREW and 0636011118: HEXAGON SCREW fasteners used in the output flange retention.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105402 | OUTPUT | Torque transfer shaft |
| 4005303005 | OUTPUT FLANGE | Connects to driveline |
| 4616101119 | TRANSMISSION HOUSING | Main structural casing |
| 0636011038 | HEXAGON SCREW | Flange fastening |
| 0636011118 | HEXAGON SCREW | Housing bolt |
| 0636016015 | HEXAGON SCREW | Output shaft retention |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel |
| 0634313118 | O-RING | Fluid seal |
| 0636304019 | SCREW PLUG | Oil port closure |
| 0634801152 | SEALING RING | Static seal |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
