Overview
The ZF 4657.056.116 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, ready-to-install gearbox core designed for heavy-duty off-highway machinery. This complete unit integrates the torque converter, planetary gear sets, and hydraulic clutch packs into a single, sealed assembly. As the central power transfer component in the WG 210 Series, it replaces the entire rotating assembly within the main casing. The SKU 4657.056.116 denotes a factory-spec remanufactured or new unit, ensuring direct bolt-in compatibility with existing drivelines. This assembly sits between the engine flywheel and the final drive, managing torque multiplication and speed reduction under extreme loads.
Symptoms of Failure
- Erratic gear engagement or slipping under load: When the internal clutch packs or sprags wear, the transmission fails to hold gear, causing RPM flare without corresponding vehicle movement.
- Contaminated transmission fluid with metallic debris: Worn bearings or planetary gears shed metal particles, leading to clogged filters and accelerated internal damage.
- Hydraulic pressure loss or delayed shifting: A failing pump or valve body within the assembly results in slow, harsh, or incomplete gear changes, often accompanied by warning codes.
- External oil leaks from the bell housing or output shaft seal: Cracks in the TRANSMISSION HOUSING or worn seals allow fluid to escape, reducing lubrication and causing overheating.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.116 |
| Series | WG 210 (6-speed Powershift) |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 720 mm |
| Overall Width | 510 mm |
| Overall Height | 480 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Max Input Torque | 1,200 Nm |
| Fluid Capacity | 18 liters (ZF TE-ML 03 spec) |
| Mounting Interface | SAE 3 bell housing |
Compatibility
This complete unit is engineered for the ZF WG 210 Series powershift transmissions. It is directly compatible with models including the WG180, WG200, and WG210 used in wheel loaders, telehandlers, and graders. The assembly also fits select variants of the WG 211 and WG 212 when paired with the correct HOUS.FRONT SECT and HOUSING REAR PART. For applications requiring a different output flange, the HOUSING REAR SECTION can be swapped to match specific driveline configurations. Always verify the serial number against your existing unit before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and oil sump. |
| 4657201167 | HOUS.FRONT SECT | Front section housing the torque converter and input shaft. |
| 4657201171 | HOUSING REAR PART | Rear casing section supporting the output shaft and parking brake. |
| 4657298103 | HOUSING REAR SECTION | Alternate rear housing variant for different output flange configurations. |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing-to-housing mating. |
| 0636100801 | CAP SCREW | M12 fastener for securing the front housing section. |
| 4656301148 | FIXING PLATE | Locking plate for retaining clutch piston springs. |
| 4657301034 | SCREEN SHEET | Fine mesh filter screen for the oil suction line. |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter screen for the return line. |
| 0636100803 | CAP SCREW | M10 fastener for securing the rear housing section. |
