Overview
The ZF 4657.154.009 POWER TAKE-OFF is a critical OEM genuine component engineered specifically for the WG 210 Series transmission. This unit serves as the primary interface for transferring engine power to auxiliary hydraulic systems, such as dump truck hoists, concrete mixer drums, or refuse packer blades. Mounted directly to the transmission housing, the PTO engages via a sliding gear mechanism that interfaces with the transmission’s internal drive gear. The SKU 4657.154.009 is a direct replacement part that ensures precise gear mesh and oil flow integrity, preventing power loss during high-torque operations. For complete assembly integrity, this unit is installed in conjunction with the 4657101033: TRANSMISSION HOUSING, which provides the structural mounting surface and oil gallery alignment.
Symptoms of Failure
- Oil leaks at the PTO mounting flange: When the gasket or seal between the PTO and the 4657201027: HOUS.FRONT SECT degrades, transmission fluid seeps out, leaving visible drips under the vehicle after shutdown.
- Gear slipping under load: Worn internal shift forks or damaged engagement teeth cause the PTO to disengage intermittently when hydraulic pressure demands peak torque, resulting in a grinding noise and loss of auxiliary function.
- Vibration during PTO activation: A failing bearing or misaligned shaft within the 4657.154.009 creates rhythmic shaking that transfers through the 4657201012: HOUSING REAR PART, often accompanied by a low-frequency hum.
- Delayed engagement: Internal wear on the shift mechanism causes a 2-3 second lag between activating the PTO switch and actual gear engagement, reducing operator control precision.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.154.009 |
| Weight | 14.2 kg (31.3 lbs) |
| Housing Material | Cast Aluminum Alloy (A356-T6) |
| Input Spline Count | 14-tooth, 2.5″ pitch diameter |
| Max Torque Capacity | 450 Nm (332 ft-lbs) |
| Mounting Bolt Pattern | 6-bolt, 130 mm BCD |
| Seal Type | Viton double-lip with dust wiper |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.154.009 (Genuine) |
Compatibility
This power take-off is engineered for the ZF WG 210 Series, but it also fits select models in the WG180, WG200, and WG250 families due to shared mounting interfaces and gear ratios. The 0631306792: CYLINDRICAL PIN is used to align the PTO housing during installation, ensuring concentricity with the transmission output shaft. Always verify your transmission model code against the ZF parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing input shaft and PTO mount |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft bearings |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for PTO-to-housing fit |
| 0636100801 | CAP SCREW | M12x1.75 bolt for PTO flange fastening |
| 4656301148 | FIXING PLATE | Retains PTO shift fork assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for PTO oil supply |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for return oil |
| 0636100803 | CAP SCREW | M10x1.5 bolt for screen sheet retention |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply line to PTO clutch |
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