Overview
The ZF 4657.056.124 6 WG 210 Powershift Transmission Assembly is a complete, factory-engineered unit designed for heavy-duty off-highway applications. This assembly integrates the main gear cluster, clutch packs, and hydraulic control components into a single, ready-to-install package. As a core replacement for the WG 210 series, the SKU 4657.056.124 directly interfaces with the TRANSMISSION HOUSING to form the structural backbone of the drivetrain. It is precision-machined to restore original shift quality and torque capacity in ZF powershift transmissions.
Symptoms of Failure
- Erratic or delayed gear engagement: When the internal clutch packs or hydraulic seals wear, operators experience hesitation or harsh engagement when shifting between forward and reverse.
- Low hydraulic pressure warnings: A failing assembly often causes internal leakage, triggering pressure drop alerts on the vehicle’s diagnostic system.
- Metallic debris in the oil pan: Worn bearings or gear teeth produce fine metal particles, visible during routine oil changes or filter inspections.
- Torque converter shudder under load: Degraded internal components lead to vibration during acceleration, particularly in high-torque applications like loaders or graders.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.056.124 |
| Assembly Type | Complete Powershift Unit (6-speed) |
| Series | WG 210 |
| Estimated Weight | 185 kg (408 lbs) |
| Housing Material | High-grade cast iron (GGG-40) |
| OEM Reference | ZF 6 WG 210 |
| Torque Capacity | 2100 Nm (1549 lb-ft) |
| Fluid Capacity | Approx. 12 liters (with housing) |
Compatibility
This assembly is engineered for the ZF WG 210 series and is also compatible with the WG 180 and WG 200 models when used with the correct HOUS.FRONT SECT and HOUSING REAR PART. It fits applications including wheel loaders, telehandlers, and industrial tractors from manufacturers such as Case, New Holland, and JCB. For specific vehicle fitment, verify the HOUSING REAR SECTION configuration matches your existing transmission.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201167 | HOUS.FRONT SECT | Front section housing for clutch packs |
| 4657201171 | HOUSING REAR PART | Rear casing for output shaft support |
| 4657298103 | HOUSING REAR SECTION | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing joints |
| 4656301148 | FIXING PLATE | Secures internal components |
| 4657301034 | SCREEN SHEET | Filter screen for oil circuit |
| 4657301035 | SCREEN SHEET | Secondary filter screen |
| 0636100803 | CAP SCREW | High-torque fastener for rear section |
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