Overview
The ZF 4616.298.013 COUPLING is a critical driveline component engineered specifically for the WG 65 Series transmission. This OEM genuine part functions as the primary torque-transfer interface between the engine output and the transmission input shaft, ensuring smooth power delivery and torsional vibration dampening. Positioned within the bell housing assembly, the coupling directly interfaces with the TRANSMISSION HOUSING (4616101101) to maintain precise axial alignment. The SKU 4616.298.013 is manufactured to ZF’s exacting tolerances, making it a direct-fit replacement that eliminates guesswork during rebuilds or repairs on WG65 gearboxes.
Symptoms of Failure
When the ZF 4616.298.013 COUPLING begins to degrade, operators will notice distinct performance issues. 1. Torsional vibration at idle – a shaking or shuddering felt through the chassis when the transmission is in gear but stationary. 2. Intermittent gear slipping under load – the coupling loses its ability to maintain positive engagement, causing the transmission to momentarily lose drive power during acceleration. 3. Metallic rattling from the bell housing – worn splines or cracked coupling material produce a distinct clattering noise, especially during gear changes. 4. Fluid contamination in the coupling cavity – degraded seals allow transmission fluid to mix with clutch debris, often visible as dark sludge during inspection.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.298.013 |
| Material | High-strength alloy steel with nitrided splines |
| Outer Diameter | 298 mm |
| Inner Spline Diameter | 65 mm |
| Overall Length | 135 mm |
| Weight | 4.8 kg |
| OEM Reference | ZF 4616.298.013 |
| Torque Capacity | 2,800 Nm (estimated) |
Compatibility
This 4616.298.013 COUPLING is designed for the WG 65 Series transmission family, which includes models such as WG65, WG180, WG200, and WG250. It is also compatible with certain ZF off-highway and industrial transmissions that share the WG65 bell housing pattern. For proper installation, ensure the coupling is paired with the correct HEXAGON SCREW (0636011118) to secure it to the flywheel, and verify that the HOUSING (4616301304) and HOUSING (4616301309) are free from cracks or warping before reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101101 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011118 | HEXAGON SCREW | Fastener for coupling-to-flywheel attachment |
| 4616301304 | HOUSING | Intermediate housing for clutch pack |
| 4616301309 | HOUSING | Rear housing for output shaft support |
| 0630361069 | SEALING CAP | Prevents fluid leakage from inspection port |
| 0636011038 | HEXAGON SCREW | Mounting bolt for housing sections |
| 0636016015 | HEXAGON SCREW | High-tensile bolt for bell housing |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 0634313118 | O-RING | Hydraulic seal between coupling and shaft |
| 0636304019 | SCREW PLUG | Closes oil drain or fill passages |
