Overview
The ZF 4646.154.463 POWER TAKE-OFF is a precision-engineered OEM genuine component designed specifically for the WG311 transmission series, with full compatibility across the WG 261 Series. This PTO unit mounts directly to the transmission housing, providing a mechanical power interface to drive auxiliary hydraulic pumps or other secondary equipment. The SKU 4646.154.463 ensures exact fitment and reliable torque transfer, eliminating the guesswork of aftermarket alternatives. When installed, it integrates seamlessly with the transmission’s internal gearing, allowing operators to engage or disengage auxiliary power without interrupting main driveline performance.
Symptoms of Failure
- Oil leaks around the PTO housing: Worn seals or gaskets on the 4646.154.463 can cause transmission fluid to weep, leading to low oil levels and potential gear damage. Look for drips near the mounting flange.
- Gear slipping under load: If the PTO fails to maintain engagement, you may notice intermittent power loss to hydraulic pumps, especially during heavy operation.
- Unusual whining or grinding noises: Bearing wear inside the power take-off produces audible metallic sounds, indicating imminent failure.
- Difficulty engaging or disengaging the PTO: A sticking shift mechanism or internal gear damage can prevent smooth operation, often accompanied by vibration.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4646.154.463 |
| OEM Reference | ZF 4646.154.463 |
| Material | High-strength cast iron housing with hardened steel gears |
| Weight | Approx. 8.2 kg (18.1 lbs) |
| Dimensions (L x W x H) | 280 mm x 160 mm x 140 mm |
| Mounting Bolt Torque | 85 Nm (63 ft-lbs) |
| Seal Type | Integrated O-ring and gasket |
Compatibility
This genuine ZF power take-off is engineered for the WG311 and WG261 transmission series. It is also compatible with earlier WG180 and WG200 models when used with the appropriate adapter kit. For optimal performance, always pair the 4646.154.463 with the correct 0636115293: 螺栓 and 0736300232: 螺栓 to secure the housing. Additionally, the 4475280208: SCREW PLUG and 0634316523: O-RING are essential for sealing the assembly against leaks. Always verify your transmission model before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0636115293 | 螺栓 | Mounting bolt for PTO flange |
| 0736300232 | 螺栓 | Secondary securing bolt |
| 4475280208 | SCREW PLUG | Oil port sealing plug |
| 0634316523 | O-RING | Housing seal |
| 0630361026 | SEALING CAP | Protective cap for unused ports |
| 0501214611 | 齿轮泵 | Hydraulic gear pump |
| 0634313945 | O形圈 | Secondary O-ring seal |
| 0501322534 | TEMPERATURE SENSOR | Monitors PTO oil temperature |
| 0634313366 | O-RING | Sensor mounting seal |
| 4646130044 | ENGINE CONNECTION | Interface adapter to engine |
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