Overview
The ZF 4657.056.019 6 WG 210 Powershift Transmission Assembly represents a complete, factory-grade replacement unit engineered for heavy-duty off-highway machinery. This fully assembled transmission sits at the core of the driveline, managing torque distribution across six forward speeds and one reverse range. As a complete unit, the SKU 4657.056.019 eliminates the need for piecemeal rebuilding, offering a direct swap solution for equipment operating in construction, mining, and agricultural applications. The assembly integrates the main gear cluster, clutch packs, and hydraulic control system into a single sealed housing, ensuring immediate operational readiness upon installation.
Symptoms of Failure
- Erratic gear engagement or slipping under load: When the internal clutch packs or hydraulic circuits degrade, operators experience delayed or harsh shifting, particularly when transitioning between forward and reverse.
- External oil seepage from housing joints: Worn gaskets or cracked castings around the TRANSMISSION HOUSING allow transmission fluid to escape, leading to low pressure and eventual overheating.
- Unusual whining or grinding noises during operation: Bearing wear or gear tooth damage inside the assembly produces audible metallic sounds that intensify with speed changes.
- Complete loss of power to the wheels: A seized or failed torque converter or planetary gear set results in no forward or reverse motion despite engine engagement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.056.019 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 210 |
| Overall Length | Approx. 780 mm |
| Overall Width | Approx. 520 mm |
| Overall Height | Approx. 610 mm |
| Dry Weight | ~ 285 kg |
| Housing Material | High-strength cast iron |
| OEM Reference | ZF 4657.056.019 |
| Oil Capacity | Approx. 18 liters |
Compatibility
This complete unit is specifically designed for the ZF WG 210 series powershift transmissions. It is directly compatible with WG 180, WG 200, and WG 210 models found in loaders, graders, and telescopic handlers. The assembly interfaces seamlessly with the HOUS.FRONT SECT and the HOUSING REAR PART, which enclose the planetary gear sets. During installation, the CYLINDRICAL PIN is used to align the housing sections precisely, preventing misalignment of internal shafts.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4657201028 | HOUS.FRONT SECT | Front section enclosing input shaft and torque converter |
| 4657201013 | HOUSING REAR PART | Rear section supporting output shaft and PTO drive |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for securing housing flanges |
| 4656301148 | FIXING PLATE | Retainer for clutch pack assembly |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | High-tensile bolt for bell housing attachment |
| 4681301040 | OIL FEED.HOUSG. | Lubrication distribution manifold |
