Overview
The ZF 4646.154.067 POWER TAKE-OFF is an OEM genuine component engineered specifically for the WG311 transmission series, with cross-compatibility across the WG 261 Series. This PTO unit transfers engine torque to auxiliary hydraulic systems, such as dump truck hoists or concrete mixer drums, by engaging directly with the transmission’s gear train. The part number 4646.154.067 ensures precise fitment and OEM-grade durability, reducing downtime in heavy-duty applications. When installing, always pair this unit with the correct 0636115293 螺栓 and 0736300232 螺栓 to secure the mounting flange, and use a fresh 0634316523 O-RING to seal the hydraulic port. The assembly also requires a 4475280208 SCREW PLUG to prevent contamination during operation.
Symptoms of Failure
- Hydraulic oil leaks at the PTO housing: Worn seals or gaskets cause visible drips, often mistaken for transmission fluid loss. This is a common search query for “ZF PTO oil leak repair.”
- Intermittent gear slipping under load: When the PTO fails to engage fully, auxiliary equipment loses power intermittently, leading to “PTO slipping when engaging” complaints.
- Unusual grinding or whining noise: Bearing wear or gear misalignment produces a distinct metallic sound, especially during cold starts—a key indicator for “noisy power take-off diagnosis.”
- Delayed or no engagement of auxiliary systems: A failing shift fork or worn clutch pack prevents the PTO from locking, resulting in “PTO not engaging WG311” issues.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4646.154.067 |
| OEM Reference | ZF 4646.154.067 |
| Material | High-strength cast iron housing with hardened steel gears |
| Weight | Approx. 8.2 kg (18.1 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 120 mm |
| Mounting Bolt Torque | 45 Nm (33 ft-lbs) |
| Seal Type | Viton O-ring (use 0634316523) |
Compatibility
This PTO is designed for ZF WG-series transmissions, including the WG180, WG200, WG261, and WG311 models. It is also compatible with select WG 261 Series variants. For WG311 applications, verify the output shaft spline count (typically 10-spline) and housing bolt pattern. The unit integrates with the 0501214611 齿轮泵 for hydraulic flow and the 0501322534 TEMPERATURE SENSOR for monitoring. Use the 0634313945 O形圈 and 0634313366 O-RING for additional sealing points. The 4646130044 ENGINE CONNECTION adapter may be required for non-standard engine interfaces.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0636115293 | 螺栓 | Mounting bolt for PTO flange |
| 0736300232 | 螺栓 | Secondary mounting bolt |
| 4475280208 | SCREW PLUG | Port seal plug |
| 0634316523 | O-RING | Hydraulic port seal |
| 0630361026 | SEALING CAP | Protective cap for unused ports |
| 0501214611 | 齿轮泵 | Hydraulic gear pump |
| 0634313945 | O形圈 | Pump seal ring |
| 0501322534 | TEMPERATURE SENSOR | Oil temperature monitoring |
| 0634313366 | O-RING | Sensor seal |
| 4646130044 | ENGINE CONNECTION | Engine interface adapter |
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