Overview
The ZF 4657.056.023 6 WG 210 Powershift Transmission Assembly is a complete, factory-engineered unit designed for heavy-duty off-highway applications. This assembly integrates the main gear cluster, clutch packs, and hydraulic control elements into a single, ready-to-install package. As a full replacement for the WG 210 series, the SKU 4657.056.023 eliminates the need for piecemeal repairs, restoring full torque capacity and shift quality. It sits at the core of the drivetrain, directly coupling the engine output to the final drive. For optimal sealing and structural integrity, this assembly is paired with the TRANSMISSION HOUSING, the HOUS.FRONT SECT, and the HOUSING REAR PART to form a complete, leak-free enclosure.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn clutch discs or degraded seals within the assembly cause the transmission to hesitate or lose torque during acceleration, especially on inclines.
- External oil leaks near the bell housing: Cracks in the main housing or failed gaskets allow transmission fluid to escape, often visible as drips after the machine has been parked.
- Delayed or harsh shifting between forward and reverse: Internal hydraulic pressure loss or contamination in the valve body leads to jarring shifts or a noticeable pause when changing direction.
- Unusual whining or grinding noises from the gear train: Bearing wear or gear tooth damage inside the 6 WG 210 produces metallic sounds that intensify with engine RPM.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Reference | ZF 4657.056.023 |
| Assembly Type | Complete Powershift Unit (6 WG 210) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Primary Material | Cast Iron Housing with Steel Gears |
| Mounting Hardware | Includes CAP SCREW and CAP SCREW kits |
| Alignment Components | Uses CYLINDRICAL PIN for dowel alignment |
| Oil Feed System | Includes OIL FEED.HOUSG. for lubrication |
| Filtration | Compatible with SCREEN SHEET and SCREEN SHEET filters |
| Retention | Secured via FIXING PLATE |
Compatibility
This complete assembly is engineered for the ZF WG 210 series powershift transmissions. It is directly compatible with the 6 WG 210 model designation. Based on its construction and spline configuration, it also serves as a direct replacement for earlier WG 180 and WG 200 series units that share the same bell housing bolt pattern and input shaft dimensions. Always verify the serial number of your existing transmission to confirm fitment. The assembly integrates seamlessly with the HOUS.FRONT SECT and the HOUSING REAR PART to maintain proper gear alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural enclosure for the gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201012 | HOUSING REAR PART | Rear section housing for output shaft support |
| 0631306792 | CYLINDRICAL PIN | Precision dowel pin for housing alignment |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301032 | SCREEN SHEET | Oil filter screen (fine mesh) |
| 4657301033 | SCREEN SHEET | Oil filter screen (coarse mesh) |
| 0636100803 | CAP SCREW | Fastener for oil pan or cover plate |
| 4681301040 | OIL FEED.HOUSG. | Housing for oil supply channel |
