Overview
The ZF 4657.154.003 POWER TAKE-OFF is a critical OEM genuine component engineered specifically for the WG 210 Series transmission. This unit transfers engine torque to auxiliary hydraulic or mechanical systems, such as pumps or winches, without interrupting the main driveline. Mounted directly to the transmission housing, the PTO engages via a pneumatic or mechanical shift mechanism. The SKU 4657.154.003 ensures a precise fit and reliable power delivery, making it an essential part for heavy-duty vocational vehicles. For complete assembly integrity, this unit interfaces with the 4657101033: TRANSMISSION HOUSING and the 4657201027: HOUS.FRONT SECT, which together form the structural foundation of the gearbox.
Symptoms of Failure
When the ZF 4657.154.003 PTO begins to wear, operators may notice several distinct failure modes. Oil leaks from the PTO mounting flange are a common early indicator, often caused by a degraded gasket or seal. Gear slipping or intermittent engagement during operation suggests worn internal splines or a failing shift fork. Another frequent issue is abnormal whining or grinding noise when the PTO is engaged, pointing to bearing fatigue or gear tooth damage. Finally, inability to engage or disengage the PTO can result from a seized shift mechanism or broken actuation components. Addressing these symptoms promptly prevents secondary damage to the 4657201012: HOUSING REAR PART and the 0631306792: CYLINDRICAL PIN that aligns the assembly.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.154.003 |
| OEM Reference | ZF 4657.154.003 |
| Material | High-strength alloy steel (case-hardened) |
| Weight | Approx. 4.2 kg (9.3 lbs) |
| Dimensions (L x W x H) | 210 mm x 120 mm x 95 mm |
| Mounting Type | Flange-mounted, 6-bolt pattern |
| Shift Type | Pneumatic or mechanical (dependent on application) |
| Torque Capacity | Up to 450 Nm (332 lb-ft) |
Compatibility
This PTO is designed for the ZF WG 210 Series transmission family. It is also compatible with the WG 180, WG 200, and WG 250 models when used with the correct adapter kit. The 4657.154.003 fits both standard and heavy-duty configurations found in municipal trucks, fire apparatus, and construction equipment. Always verify the transmission model and housing variant before installation, as the TRANSMISSION HOUSING design may differ between series.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for the gearbox |
| 4657201027 | HOUS.FRONT SECT | Front section housing input shaft and bearings |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft and PTO mount |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing and PTO mounting |
| 4656301148 | FIXING PLATE | Secures PTO shift mechanism |
| 4657301032 | SCREEN SHEET | Oil filter screen for lubrication circuit |
| 4657301033 | SCREEN SHEET | Secondary oil filter screen |
| 0636100803 | CAP SCREW | High-tensile bolt for critical joints |
| 4681301040 | OIL FEED.HOUSG. | Oil feed line housing for PTO lubrication |
