Overview
The ZF 4681.155.401 POWER TAKE-OFF for BP230 is a critical OEM genuine component designed to transfer engine power from the transmission to auxiliary hydraulic systems, such as pumps for dump bodies, winches, or refuse equipment. This PTO unit mounts directly to the side of the transmission housing, engaging with the internal gearing to provide a reliable power source for secondary operations. The SKU 4681.155.401 is engineered specifically for the BP 230 Series, ensuring precise fitment and optimal torque output. When installed alongside the TRANSMISSION HOUSING, this part forms a sealed assembly that prevents contamination and maintains hydraulic pressure integrity.
Symptoms of Failure
- Hydraulic oil leaks around the PTO mounting flange: Worn seals or gaskets on the 4681.155.401 unit cause visible oil drips, often mistaken for transmission leaks. This is a common symptom when the unit has exceeded service life.
- Intermittent power loss to auxiliary equipment: If your dump body or winch operates sluggishly or stops engaging, the PTO gear may be slipping due to worn teeth or a damaged shift fork inside the assembly.
- Unusual grinding or whining noise during PTO engagement: A failing bearing or misaligned shaft within the power take-off produces metallic sounds, indicating imminent failure that can damage the HOUS.FRONT SECT if left unaddressed.
- Difficulty engaging or disengaging the PTO: Stiff or unresponsive shift mechanisms suggest internal corrosion or debris, often requiring replacement of the entire 4681.155.401 unit to restore function.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4681.155.401 |
| OEM Reference | ZF BP230 Series |
| Material | High-grade cast iron with hardened steel gears |
| Weight | Approximately 8.5 kg (18.7 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 120 mm |
| Mounting Type | Side-mount, 6-bolt flange |
| Max Torque Capacity | 450 Nm |
| Seal Type | Double-lip nitrile rubber |
Compatibility
This genuine ZF 4681.155.401 power take-off is primarily designed for the BP 230 transmission series, but it also fits select models in the WG180 and WG200 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 model number before ordering to ensure proper engagement with the internal gear train.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101005 | TRANSMISSION HOUSING | Main structural casing that encloses gears and shafts |
| 4681201007 | HOUS.FRONT SECT | Front section housing for input shaft and bearing support |
| 4681201019 | HOUSING REAR PART | Rear casing that supports output shaft and PTO mounting |
| 0631306074 | CYLINDRICAL PIN | Alignment dowel for precise housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing PTO to transmission housing |
| 4681301015 | FIXING PLATE | Retaining plate for PTO gear positioning |
| 4681301016 | SCREEN SHEET | Fine mesh filter for hydraulic oil intake |
| 4681301017 | SCREEN SHEET | Coarse mesh pre-filter for debris protection |
| 0636100803 | CAP SCREW | High-tensile bolt for rear housing attachment |
| 0750100162 | OIL FEED.HOUSG. | Lubrication channel housing for gear cooling |
Frequently Asked Questions
Q: Can the 4681.155.401 PTO be repaired, or must it be replaced entirely?
A: While some seals and bearings can be replaced, the internal gear set and shift mechanism are precision-matched. ZF recommends full replacement of the 4681.155.401 unit to ensure reliable torque transfer and avoid damage to the HOUS.FRONT SECT.
Q: How do I confirm this PTO fits my BP230 transmission?
A: Check the transmission serial number plate for “BP230” designation. The 4681.155.401 requires the CYLINDRICAL PIN for alignment; if your unit has a different pin diameter, an adapter may be needed.
Q: What causes premature failure of the 4681.155.401?
A: Common causes include low hydraulic oil levels, contaminated fluid, or misalignment during installation. Always inspect the HOUSING REAR PART for cracks before mounting a new PTO.
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Phone: +86 158 2286 3467 |
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