Overview
The ZF 4657.056.216 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated, factory-built gearbox core designed for heavy-duty off-highway machinery. This complete assembly serves as the primary power transfer module within the WG 210 series, converting engine torque into controlled, multi-speed output for loaders, graders, and industrial tractors. The SKU 4657.056.216 denotes a remanufactured or new-build unit that includes all internal clutches, shafts, and valve bodies, ready for direct installation. It sits centrally in the drivetrain, bridging the engine flywheel housing to the final drive. For a full rebuild, this assembly mates directly with the 4657101082: TRANSMISSION HOUSING, which provides the structural envelope for the gear train.
Symptoms of Failure
When the ZF 4657.056.216 assembly begins to fail, operators typically notice these specific issues:
- Delayed or harsh gear engagement: The transmission hesitates before shifting or slams into gear, indicating worn clutch packs or valve body degradation within the unit.
- Torque converter shudder under load: A vibration felt through the chassis when the machine is under heavy pull, often caused by internal seal failure or stator wear.
- External oil seepage at the bell housing: Hydraulic fluid leaks from the front or rear sealing surfaces, often requiring replacement of the 4657201166: HOUS.FRONT SECT or the 4657201170: HOUSING REAR PART to restore pressure integrity.
- Loss of power in higher gears: The machine struggles to maintain speed in 5th or 6th gear, a classic sign of slipping clutch discs or a failing output shaft bearing.
Technical Specifications
| Part Number | 4657.056.216 |
| Assembly Type | Complete Powershift Transmission (6 WG 210) |
| Dry Weight | Approx. 340 kg (750 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 560 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| OEM Reference | ZF 6 WG 210 |
| Torque Capacity | Up to 2100 Nm |
| Fluid Capacity | 28 liters (ZF EcoFluid M-1) |
| Related Housing Parts | 4657298102: HOUSING REAR SECTION |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series powershift transmissions. It is directly compatible with the following ZF models and their variants:
- ZF WG 210 (6-speed, all sub-variants)
- ZF WG 180 (with adapter plate modifications)
- ZF WG 200 (same bell housing pattern)
- ZF 6 WG 210 (OEM designation for this exact assembly)
Always verify the flywheel housing bolt pattern and PTO configuration before ordering. The 4657101082: TRANSMISSION HOUSING is a common replacement when the main casting cracks under extreme load cycles.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing torque converter |
| 4657201170 | HOUSING REAR PART | Rear cover supporting output shaft |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for PTO mount |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M12 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locks bearing in place |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M14 bolt for heavy-duty joints |
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