Overview
The ZF 4657.056.043 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated, factory-assembled gearbox core designed for heavy-duty industrial and agricultural machinery. This complete unit serves as the primary power transfer module within the WG 210 series, converting engine torque into controlled, multi-speed output for demanding applications such as wheel loaders, telehandlers, and graders. The assembly integrates the main gear cluster, clutch packs, and hydraulic control circuits into a single, ready-to-install package. The SKU 4657.056.043 identifies this as a current-production, complete assembly, ensuring direct replacement without the need for sub-component sourcing. It sits centrally within the drivetrain, connecting directly to the torque converter and the final drive, and is structurally supported by the 4657101033: TRANSMISSION HOUSING which encloses the rotating elements.
Symptoms of Failure
When the ZF 4657.056.043 complete unit begins to degrade, operators typically notice distinct performance issues. Delayed or harsh gear engagement is a primary indicator, often caused by internal clutch pack wear or hydraulic pressure loss within the assembly. Another common symptom is intermittent gear slipping under load, particularly when shifting between forward and reverse, which points to worn friction discs or damaged seals. External oil leaks at the housing joints are frequently observed, especially around the mating surfaces of the 4657201027: HOUS.FRONT SECT and the 4657201012: HOUSING REAR PART. Finally, unusual metallic grinding noises during operation suggest bearing failure or gear tooth damage inside the unit, requiring immediate attention to prevent catastrophic failure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.056.043 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 210 |
| Overall Length (approx.) | 720 mm |
| Overall Width (approx.) | 480 mm |
| Overall Height (approx.) | 560 mm |
| Dry Weight (approx.) | 185 kg |
| Primary Material | High-Grade Cast Iron / Alloy Steel |
| OEM Reference | ZF 4657.056.043 |
| Mounting Hardware | Includes 0636100801: CAP SCREW and 0636100803: CAP SCREW |
| Alignment Component | 0631306792: CYLINDRICAL PIN |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series of powershift transmissions. While it is a direct fit for the WG 210, it is also compatible with several closely related ZF models that share the same housing architecture and gear center distances. These include the WG 180 and WG 200 series, provided the torque converter and output flange configurations match the application. Additionally, it can be used in WG 211 variants where the complete assembly is specified. For precise fitment verification, always cross-reference the existing transmission serial number with the SKU 4657.056.043. The unit integrates with the 4656301148: FIXING PLATE for secure chassis mounting and requires the 4681301040: OIL FEED.HOUSG. for proper lubrication flow.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural enclosure for gear and clutch assembly |
| 4657201027 | HOUS.FRONT SECT | Front section housing input shaft and pump drive |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft and PTO |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 0636100803 | CAP SCREW | Fastener for mounting brackets and covers |
| 4656301148 | FIXING PLATE | Mounting plate for chassis attachment |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for sump protection |
| 4681301040 | OIL FEED.HOUSG. | Oil feed housing for lubrication distribution |
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