Overview
The ZF 4657.056.193 6 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. This assembly integrates the main gear cluster, clutch packs, and hydraulic control elements into a single drop-in replacement. As the core rotating assembly of the WG 210 series, it governs torque distribution across all six forward speeds. The SKU 4657.056.193 is a direct OEM reference for this complete unit, ensuring precise fitment within the transmission housing. When rebuilding a WG 210, this assembly is typically mounted inside the TRANSMISSION HOUSING and sealed by the HOUS.FRONT SECT and HOUSING REAR PART.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn clutch discs or damaged piston seals inside the assembly cause delayed shifts or complete loss of drive in specific ranges.
- Internal metallic noise or grinding: Bearing fatigue or gear tooth pitting produces a distinct whine or rattle that worsens with engine RPM.
- Contaminated transmission fluid with metal debris: Friction material shedding or spalling from the planetary gears introduces visible particles into the oil, often clogging the SCREEN SHEET.
- Hydraulic pressure drop or erratic shift timing: Internal leakage past worn sealing rings reduces clutch apply pressure, leading to harsh or slipping shifts.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.056.193 |
| Assembly Type | 6-Speed Powershift (Complete Unit) |
| Dry Weight (approx.) | 145 kg (320 lbs) |
| Overall Length | 620 mm |
| Overall Diameter | 380 mm |
| Primary Material | Heat-treated alloy steel / Aluminum housing |
| Clutch Pack Count | 6 (forward) + 1 (reverse) |
| Max Input Torque | 2,100 Nm |
| OEM Reference | ZF 6 WG 210 |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series. It is also compatible with the WG 180 and WG 200 series when used with the appropriate HOUSING REAR PART and HOUSING REAR SECTION adapters. The assembly fits all standard WG 210 applications including agricultural tractors, construction loaders, and industrial material handlers. For non-standard builds, verify the front section alignment using the HOUS.FRONT SECT.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for the assembly |
| 4657201167 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201171 | HOUSING REAR PART | Rear housing section for output bearing retention |
| 4657298103 | HOUSING REAR SECTION | Alternate rear section for extended applications |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for front housing attachment |
| 4656301148 | FIXING PLATE | Retention plate for clutch pack assembly |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump return |
| 0636100803 | CAP SCREW | Fastener for rear housing attachment |
