Overview
The ZF 4657.056.053 6 WG 210 Powershift Transmission Assembly is a complete, factory-sealed unit engineered for heavy-duty off-highway machinery. This fully assembled gearbox integrates the clutch packs, planetary gearsets, and hydraulic control system into a single drop-in solution. As the core power transfer module for the WG 210 series, it replaces worn or failed assemblies in wheel loaders, dozers, and material handlers. The SKU 4657.056.053 is precision-balanced to OEM tolerances and is designed to bolt directly onto the 4657101033: TRANSMISSION HOUSING without modification. This unit eliminates the need for piecemeal rebuilding, reducing downtime in critical applications.
Symptoms of Failure
- Erratic gear engagement or slipping under load: When the internal clutch discs or seals degrade, the transmission may hesitate or fail to hold a gear during heavy pushing or lifting cycles.
- Internal hydraulic pressure loss: Worn pump gears or valve body leaks cause delayed shifting or a complete loss of drive, often accompanied by a whining noise from the sump.
- Contaminated oil with metallic debris: Advanced wear of planetary bearings or friction plates produces visible metal particles in the fluid, leading to filter clogging and thermal runaway.
- External oil seepage from the main case: Cracks or gasket failure in the 4657201027: HOUS.FRONT SECT or rear cover allow fluid to escape, reducing lubrication and causing overheating.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.053 |
| Assembly Type | 6-Speed Powershift, Complete Unit |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-Strength Cast Iron (GGG-40) |
| Max Input Torque | 2,100 Nm |
| OEM Reference | ZF WG 210 Series |
Compatibility
This complete assembly is specifically designed for the ZF WG 210 transmission family. It is directly compatible with WG 180, WG 200, and WG 210 models used in articulated dump trucks and loaders from 2010 onward. The unit also fits select variants of the WG 160 series when paired with the correct 4657201012: HOUSING REAR PART. For precise fitment, verify the bellhousing pattern and input spline count against your existing transmission. The assembly requires the 0631306792: CYLINDRICAL PIN for alignment during installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural case for gear and shaft support |
| 4657201027 | HOUS.FRONT SECT | Front section housing the torque converter and pump drive |
| 4657201012 | HOUSING REAR PART | Rear cover enclosing the output shaft and PTO gearset |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 0636100801 | CAP SCREW | M12 fastener for securing the front housing |
| 4656301148 | FIXING PLATE | Locks the main shaft bearing in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for the lube oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for the suction line |
| 0636100803 | CAP SCREW | M16 bolt for the rear housing attachment |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to the clutch packs |
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