Overview
The ZF 4657.056.033 6 WG 210 Powershift Transmission Assembly represents a complete, factory-grade replacement unit engineered for heavy-duty off-highway applications. This fully assembled gearbox integrates the planetary gear sets, clutch packs, and hydraulic control system into a single, ready-to-install package. As the core of the WG 210 series, this assembly manages torque distribution across six forward speeds and one reverse, ensuring smooth power delivery under extreme loads. The SKU 4657.056.033 is a direct OEM-specified unit, designed to interface seamlessly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to form a sealed, pressurized drivetrain module.
Symptoms of Failure
- Erratic gear engagement and slipping under load: Worn clutch discs or degraded seals within the 6 WG 210 assembly cause delayed shifts and power loss, particularly when transitioning from forward to reverse.
- External oil seepage at housing joints: Fatigue in the main casing or gasket failure between the HOUSING REAR PART and the front section leads to visible hydraulic fluid leaks, often accompanied by a burnt odor.
- Metallic grinding noises during operation: Bearing wear or planetary gear scoring produces a distinct whine or grind, indicating imminent internal failure that requires immediate replacement of the complete unit.
- Inability to hold park or neutral: A failing spool valve or broken CYLINDRICAL PIN within the shift mechanism prevents the transmission from locking, creating a safety hazard on inclines.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.033 |
| Assembly Type | Complete Powershift Transmission (6 WG 210) |
| Dry Weight (approx.) | 385 kg (849 lbs) |
| Overall Length | 785 mm |
| Overall Width | 520 mm |
| Overall Height | 610 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| Max Input Torque | 2,100 Nm |
| Fluid Capacity | 22 liters (ZF TE-ML 03 fluid) |
| OEM Reference | ZF Friedrichshafen AG |
Compatibility
This 6 WG 210 assembly is specifically engineered for the ZF WG series of powershift transmissions. It is a direct fit for the WG180, WG200, and WG210 models commonly found in telescopic handlers, wheel loaders, and agricultural tractors from manufacturers such as JCB, Manitou, and Claas. The unit also shares mounting interfaces with the WG150 and WG250 variants when used with the appropriate FIXING PLATE adapter kit. Always verify the bellhousing pattern and output flange configuration against your original transmission before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201028 | HOUS.FRONT SECT | Front section housing torque converter |
| 4657201013 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | M12 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Mounting bracket for PTO adapter |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil sump |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M10 fastener for valve body |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil distribution manifold |
