Overview
The ZF 4657.056.192 6 WG 210 Powershift Transmission Assembly is a complete, factory-engineered unit designed for heavy-duty off-highway machinery. This fully assembled gearbox integrates the main drive train, clutch packs, and hydraulic control systems into a single, ready-to-install package. As a core component of the WG 210 Series, it delivers precise power distribution for wheel loaders, graders, and industrial tractors. The SKU 4657.056.192 replaces multiple sub-assemblies, simplifying rebuilds and reducing downtime. This unit mounts directly to the TRANSMISSION HOUSING and interfaces with the HOUS.FRONT SECT to form the primary structural backbone of the drivetrain.
Symptoms of Failure
When the ZF 4657.056.192 assembly begins to degrade, operators will notice distinct performance issues. Delayed engagement or gear slipping under load is the most common symptom, often caused by worn clutch discs or degraded seals within the unit. External oil leaks at the housing joints frequently occur where the assembly mates with the HOUSING REAR PART or the HOUSING REAR SECTION. Unusual grinding or whining noises during shifting indicate bearing fatigue or gear tooth damage inside the transmission. Overheating of the transmission fluid is another critical warning sign, often pointing to internal hydraulic blockages or pump failure within the assembly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4657.056.192 |
| Assembly Type | 6 WG 210 Powershift Transmission (Complete Unit) |
| Overall Length | Approx. 850 mm |
| Overall Width | Approx. 520 mm |
| Overall Height | Approx. 580 mm |
| Dry Weight | Approx. 410 kg (904 lbs) |
| Housing Material | High-Grade Cast Iron (GGG-40) |
| OEM Reference | ZF Friedrichshafen AG |
| Seal Type | Viton® O-Rings & PTFE Lip Seals |
| Bolt Torque Spec | Refer to ZF Service Manual |
Compatibility
This complete transmission assembly is engineered for the ZF WG 210 Series, but its core architecture is shared across several heavy-duty models. It is a direct fit for the WG 210 and WG 200 series transmissions commonly found in Volvo, Case, and Caterpillar wheel loaders. The unit is also mechanically compatible with the WG 180 and WG 160 series when used with the correct adapter plates, though internal gear ratios may differ. Always verify the bell housing pattern against your existing TRANSMISSION HOUSING to ensure proper alignment with the HOUS.FRONT SECT and rear sections.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear casing section for output shaft support |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for PTO or auxiliary drives |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowel positioning |
| 0636100801 | CAP SCREW | M12 x 1.5 bolt for housing flange fastening |
| 4656301148 | FIXING PLATE | Locking plate for clutch pack retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil return line |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for suction line protection |
| 0636100803 | CAP SCREW | M10 x 1.5 bolt for cover plate attachment |
