Overview
The ZF 4657.056.029 6 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. This fully assembled gearbox integrates the main drive housing, clutch packs, and hydraulic control system into a single ready-to-install package. As the core power delivery module for the WG 210 series, it replaces the entire rotating assembly and internal valving. The SKU 4657.056.029 denotes a complete unit, eliminating the need to source individual gears, shafts, or synchronizers. When rebuilding a ZF powershift, this assembly is typically mounted directly to the 4657101033: TRANSMISSION HOUSING, which provides the structural foundation for the entire drivetrain.
Symptoms of Failure
- Delayed or harsh engagement: When the complete unit wears, internal clutch clearance increases, causing a noticeable lag or jarring shift between forward and reverse gears.
- Chronic oil overheating: A failing assembly often generates excessive heat due to internal slippage, leading to transmission fluid temperatures exceeding 120°C under normal load.
- Loss of power under load: Operators may experience the machine stalling or failing to climb grades, indicating worn torque converter or planetary gear sets within the assembly.
- Metallic debris in the oil pan: Advanced wear produces bronze or steel particles, often accompanied by a whining noise from the 4657201027: HOUS.FRONT SECT area.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.029 |
| Series | WG 210 Powershift |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | Cast iron (GGG-40) |
| Max Input Torque | 2,100 Nm |
| Oil Capacity | 22 liters |
| OEM Reference | ZF 6 WG 210 |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series powershift transmissions. It is directly compatible with models including the WG180, WG200, and WG210 variants used in wheel loaders, telehandlers, and industrial tractors. The assembly interfaces with the 4657201012: HOUSING REAR PART to enclose the output shaft and differential. For proper alignment during installation, the 0631306792: CYLINDRICAL PIN must be used to locate the assembly precisely within the main housing. While primarily for WG210 applications, this unit can also be adapted to earlier WG180 builds with minor modifications to the hydraulic valve body.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing torque converter |
| 4657201012 | HOUSING REAR PART | Rear section enclosing output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing flanges |
| 4656301148 | FIXING PLATE | Retains bearing preload |
| 4657301032 | SCREEN SHEET | Oil filter mesh (fine) |
| 4657301033 | SCREEN SHEET | Oil filter mesh (coarse) |
| 0636100803 | CAP SCREW | High-tensile bolt for clutch pack |
| 4681301040 | OIL FEED.HOUSG. | Distributes hydraulic fluid to clutches |
