Overview
The ZF 4646.154.043 POWER TAKE-OFF is an OEM genuine component engineered specifically for the WG 261 and WG 311 series transmissions. This unit mounts directly to the transmission housing, providing a mechanical interface to drive auxiliary hydraulic pumps or other power-consuming equipment. As a critical power take-off (PTO) assembly, it transfers engine torque from the transmission’s internal gearing to external systems, ensuring reliable operation in demanding industrial applications. The SKU 4646.154.043 is precision-machined to ZF’s exacting tolerances, guaranteeing seamless integration and long service life.
Symptoms of Failure
- Oil leaks around the PTO housing – Worn seals or gaskets can cause transmission fluid to seep out, often visible as drips or wet spots beneath the vehicle. This is a common long-tail search query for “ZF WG261 PTO oil leak repair.”
- Gear slipping or erratic engagement – When the PTO’s internal gears or shift mechanism degrade, you may experience intermittent power delivery or a complete failure to engage, leading to “PTO not engaging WG311” searches.
- Unusual grinding or whining noises – Damaged bearings or misaligned components produce audible sounds during operation, often prompting queries like “noisy power take-off ZF transmission.”
- Reduced hydraulic pump output – A failing PTO cannot transmit full torque, resulting in sluggish auxiliary equipment performance, a symptom frequently searched as “weak hydraulic pump ZF PTO.”
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4646.154.043 |
| OEM Reference | ZF 4646.154.043 |
| Material | High-strength alloy steel / Cast iron housing |
| Weight | Approx. 12.5 kg (27.6 lbs) |
| Dimensions (L x W x H) | 280 mm x 180 mm x 150 mm |
| Mounting Type | Flange-mounted, 6-bolt pattern |
| Max Torque Capacity | 600 Nm |
Compatibility
This power take-off is designed for the ZF WG 261 and WG 311 series transmissions. It also fits select models in the WG180, WG200, and WG250 families, provided the PTO mounting interface matches. Always verify your transmission’s serial number and housing configuration before installation. For complete assembly, pair this unit with the 0636115293 螺栓 and 0736300232 螺栓 to secure the PTO to the transmission. Additionally, use the 4475280208 SCREW PLUG for oil port sealing and the 0634316523 O-RING to prevent fluid leaks at the mating surface.
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 gasket |
| 0630361026 | SEALING CAP | Protective cap for unused ports |
| 0501214611 | 齿轮泵 | Hydraulic pump driven by PTO |
| 0634313945 | O形圈 | Additional sealing ring |
| 0501322534 | TEMPERATURE SENSOR | Monitors PTO oil temperature |
| 0634313366 | O-RING | Sensor sealing ring |
| 4646130044 | ENGINE CONNECTION | Interface between PTO and engine |
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