Overview
The ZF 4616.128.009 CONNECTING PARTS component is a critical mechanical link within the WG 65 series transmission assembly. This OEM genuine part serves as the intermediary structural element that transfers torque and rotational force between the output shaft and the driveline. Positioned directly behind the main gear cluster, the 4616.128.009 ensures precise alignment and secure coupling during high-load operations. When installed alongside the 4616105413: OUTPUT and the 4616203017: OUTPUT FLANGE, this connecting part forms a robust assembly that withstands extreme torsional stress in heavy-duty industrial applications.
Symptoms of Failure
- Oil leaks at the connecting interface: Worn connecting parts often cause transmission fluid to seep past the seal, leaving visible puddles under the vehicle. This is a common long-tail search query for “ZF WG65 oil leak connecting part.”
- Gear slipping under load: When the 4616.128.009 loses its dimensional integrity, the output shaft can shift slightly, causing intermittent gear disengagement during acceleration.
- Vibration or driveline shudder: A degraded connecting part allows excessive play, leading to noticeable vibration at highway speeds—often searched as “ZF transmission shudder fix.”
- Abnormal noise from the bell housing: Metallic clunking or grinding sounds indicate the connecting part has loosened or cracked, requiring immediate replacement.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4616.128.009 |
| Material | High-strength alloy steel (heat-treated) |
| Weight | 1.85 kg (4.08 lbs) |
| Length | 142 mm |
| Outer Diameter | 68 mm |
| Bolt Hole Pattern | 6 x M12 on 85 mm PCD |
| Surface Finish | Zinc-plated with black passivation |
| OEM Reference | ZF 4616.128.009 |
Compatibility
This connecting part is engineered specifically for the ZF WG 65 series, but it also fits select models in the broader WG family. Compatible transmissions include the WG65, WG80, WG120, WG180, and WG200 series. It is designed to interface directly with the 4616101117: TRANSMISSION HOUSING and is secured using the 0636011038: HEXAGON SCREW. Always verify your transmission model and serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers rotational force from the gearset to the driveline |
| 4616203017 | OUTPUT FLANGE | Connects the output shaft to the driveshaft |
| 4616101117 | TRANSMISSION HOUSING | Encloses and supports internal gear components |
| 0636011038 | HEXAGON SCREW | Secures connecting parts to the housing |
| 0636016015 | HEXAGON SCREW | Fastens output flange to the connecting part |
| 0631306085 | CYLINDRICAL PIN | Aligns components during assembly |
| 0634313118 | O-RING | Seals the connecting part interface against leaks |
| 0732611049 | FILTER INSERT | Captures debris in the hydraulic circuit |
| 0634303718 | O-RING | Secondary seal for high-pressure zones |
| 0636610082 | STUD | Provides threaded mounting points for accessories |
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