Overview
The ZF 4657.056.160 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in ready gearbox core designed for heavy-duty off-highway machinery. This complete unit integrates the main gear cluster, clutch packs, and hydraulic control system within a single robust housing. As the central power transfer module, it sits between the engine and the driveline, converting torque into controlled wheel speed. The SKU 4657.056.160 identifies this as a factory-matched assembly for the WG 210 series, ensuring precise alignment of all internal components. When replacing a worn unit, technicians typically pair this assembly with a new TRANSMISSION HOUSING to guarantee a sealed, leak-free installation.
Symptoms of Failure
- Erratic gear engagement and slipping under load: Worn clutch discs or valve body wear inside the assembly cause delayed shifts or complete loss of drive in specific ranges.
- External oil leaks at the housing seam: Cracks or warpage in the main casing allow transmission fluid to weep, often visible as drips near the bell housing or rear output flange.
- Unusual whining or grinding noises during operation: Bearing fatigue or gear tooth pitting within the 6 WG 210 generates a metallic sound that increases with engine RPM.
- Overheating and burnt fluid odor: Internal friction from failing clutches or a blocked screen sheet produces excessive heat, degrading the oil and triggering thermal warnings.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.056.160 |
| Assembly Type | Complete Powershift Transmission Unit |
| Series | WG 210 (6-speed forward / 1 reverse) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Housing Material | Cast Iron (GGG-40) |
| OEM Reference | ZF 4657.056.160 |
| Torque Capacity | 1,200 Nm (885 lb-ft) |
| Input Spline | SAE 14″ (standard) |
Compatibility
This complete unit is engineered for the ZF WG 210 series, but its core architecture is shared across several ZF powershift platforms. It is directly compatible with WG 180 and WG 200 series transmissions when used as a full assembly replacement, provided the bell housing and output flange match. For partial rebuilds, the assembly integrates with the HOUS.FRONT SECT and the HOUSING REAR PART to form the complete casing. Additionally, the HOUSING REAR SECTION is used in later production runs of the WG 210 for improved oil routing. Always verify the serial number against your existing unit to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for the gear cluster |
| 4657201167 | HOUS.FRONT SECT | Front section housing the input shaft and pump drive |
| 4657201171 | HOUSING REAR PART | Rear casing supporting the output shaft |
| 4657298103 | HOUSING REAR SECTION | Updated rear section for improved oil flow |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Retains clutch pack alignment |
| 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 output flange |
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