Overview
The ZF 4681.155.002 POWER TAKE-OFF for BP230 is a critical OEM genuine component engineered to transfer engine torque to auxiliary hydraulic or mechanical systems. Mounted directly onto the transmission housing, this power take-off (PTO) unit engages seamlessly with the BP 230 series gear train, enabling reliable operation of pumps, winches, or compressors. The SKU 4681.155.002 is precision-machined to ZF’s exacting tolerances, ensuring minimal parasitic loss and long service life in heavy-duty applications. It interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to form a sealed, high-torque assembly.
Symptoms of Failure
- Hydraulic system power loss or intermittent engagement – Worn internal gears or bearings in the 4681.155.002 cause slippage under load, reducing auxiliary output.
- Oil seepage around the PTO mounting flange – Degraded seals allow transmission fluid to leak, often mistaken for a “ZF BP230 oil leak from power take-off.”
- Unusual whining or grinding noises during PTO activation – Damaged gear teeth or worn shift collars produce audible distress, especially when engaging under partial load.
- Vibration or shuddering through the driveline – A failing PTO can create imbalance, felt as a “transmission vibration when PTO is engaged” in the cab or chassis.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4681.155.002 |
| OEM Reference | ZF BP230 Series Power Take-Off |
| Material | High-strength cast iron housing with hardened steel gears |
| Weight | Approx. 12.5 kg (27.6 lbs) |
| Dimensions (L x W x H) | 310 mm x 180 mm x 160 mm |
| Mounting Interface | SAE B or C (dependent on application) |
| Max Torque Capacity | 450 Nm (332 ft-lbs) |
Compatibility
This genuine ZF 4681.155.002 PTO is specifically designed for the BP 230 series transmissions, but it also fits select models in the WG180, WG200, and Ecomat 4HP families when used with the correct adapter kit. It is fully compatible with the HOUSING REAR PART and requires the CYLINDRICAL PIN for precise alignment during installation. Always verify your transmission’s serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101005 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and supports the PTO. |
| 4681201007 | HOUS.FRONT SECT | Front section of the transmission housing that aligns with the PTO mounting face. |
| 4681201019 | HOUSING REAR PART | Rear housing component that provides structural support and oil passages. |
| 0631306074 | CYLINDRICAL PIN | Precision dowel pin for accurate alignment of housing sections. |
| 0636100801 | CAP SCREW | Fastener for securing the PTO to the transmission housing. |
| 4681301015 | FIXING PLATE | Retaining plate that locks the PTO gear in position. |
| 4681301016 | SCREEN SHEET | Fine mesh filter for the PTO oil supply circuit. |
| 4681301017 | SCREEN SHEET | Secondary filter screen for auxiliary oil flow. |
| 0636100803 | CAP SCREW | High-tensile bolt for the PTO cover plate. |
| 0750100162 | OIL FEED.HOUSG. | Lubrication feed housing that directs oil to the PTO bearings. |
Frequently Asked Questions
Q: Can the ZF 4681.155.002 be used on a WG200 transmission?
A: Yes, with the appropriate adapter kit and confirmation of the mounting pattern. The 4681.155.002 is primarily for BP230 but shares bolt patterns with WG200 and Ecomat 4HP series.
Q: What torque should I use when installing the cap screws for this PTO?
A: ZF recommends 85 Nm (63 ft-lbs) for the CAP SCREW fasteners, applied in a cross-pattern sequence to ensure even clamping force.
Q: How do I know if the cylindrical pin (0631306074) is worn?
A: Inspect for scoring or a loose fit in the housing bore. A worn pin can cause misalignment, leading to premature gear failure in the PTO assembly.
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Phone: +86 158 2286 3467 |
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