Overview
The ZF 4657.056.083 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in replacement for heavy-duty powershift transmissions in the WG 210 series. This complete unit integrates the main gear train, clutch packs, and hydraulic control system into a single, pre-tested assembly. Designed for demanding off-highway and construction equipment, the SKU 4657.056.083 serves as the core power transfer module, sitting between the engine and the driveline. When replacing this assembly, it is critical to inspect the surrounding structural components, such as the 4657101039: TRANSMISSION HOUSING and the 4657201028: HOUS.FRONT SECT, as these often require simultaneous service to ensure proper alignment and sealing.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn clutch discs or degraded seals inside the assembly cause delayed shifts or loss of torque transfer, especially during heavy lifting or steep incline operations.
- Persistent internal oil leaks: Cracks in the main housing or failed gaskets lead to low hydraulic pressure, visible as puddles under the transmission bell housing, often traced back to a compromised 4657201013: HOUSING REAR PART.
- Unusual grinding or whining noises: Bearing wear or gear tooth damage within the complete unit produces metallic sounds that intensify with RPM changes, signaling imminent catastrophic failure.
- Overheating and burnt fluid smell: Slipping clutches generate excessive heat, oxidizing the transmission oil and causing a distinct burnt odor, often accompanied by erratic shift timing.
Technical Specifications
| Parameter | Value |
|---|---|
| Product SKU | 4657.056.083 |
| Assembly Type | 6 WG 210 Powershift Transmission (Complete Unit) |
| Dry Weight (approx.) | 385 kg (849 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 560 mm |
| Primary Material | Cast Iron Housing / Alloy Steel Gears |
| OEM Reference | ZF 4657.056.083 |
| Max Input Torque | 2,100 Nm |
| Fluid Capacity | 18.5 liters |
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 telehandlers, wheel loaders, and industrial tractors. The assembly also integrates with earlier 6 WG 200 and 6 WG 180 platforms when the corresponding 0631306792: CYLINDRICAL PIN is used for alignment during installation. Always verify the serial number of your existing transmission to confirm fitment, as minor variations exist in the clutch pack configurations.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201028 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4657201013 | HOUSING REAR PART | Rear housing enclosing output shaft and PTO gearset |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locks bearing and gear positions |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | High-tensile bolt for clutch pack retention |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to clutch pistons |
