Overview
The ZF 4657.056.119 6 WG 210 Powershift Transmission Assembly is a complete, factory-grade unit designed for heavy-duty off-highway vehicles and industrial machinery. This fully assembled transmission integrates the planetary gear sets, clutch packs, and hydraulic control system into a single, ready-to-install package. As a core component of the WG 210 Series, the SKU 4657.056.119 serves as the central power distribution hub, converting engine torque into precise, multi-speed output for loaders, graders, and material handlers. It mounts directly to the engine bellhousing and interfaces with the 4657101080: TRANSMISSION HOUSING to form the main structural envelope.
Symptoms of Failure
When the ZF 4657.056.119 assembly begins to degrade, operators typically notice these specific failure modes:
- Erratic gear engagement and slipping under load – Worn clutch discs or degraded seals inside the unit cause delayed shifts or complete loss of drive torque, especially during uphill operation.
- External oil leaks from the main casing joints – Cracks or gasket failures in the 4657201167: HOUS.FRONT SECT or 4657201171: HOUSING REAR PART allow transmission fluid to escape, leading to low pressure and overheating.
- Metallic grinding or whining noises during operation – Bearing fatigue or gear tooth pitting within the assembly produces audible distress, often accompanied by vibration in the driveline.
- Delayed forward/reverse shuttle response – Hydraulic valve block wear inside the 4657.056.119 results in sluggish directional changes, reducing cycle times in loader applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.056.119 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 210 |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-Strength Cast Iron (GGG-40) |
| OEM Reference | ZF 6 WG 210 |
| Max Input Torque | 1,200 Nm |
| Number of Speeds | 6 Forward / 3 Reverse |
Compatibility
This complete unit is engineered for the ZF WG 210 Series powershift family. It is directly compatible with the following ZF transmission models and their derivatives:
- WG 180 (lower torque variants with shared bolt patterns)
- WG 200 (mid-range applications using the same housing architecture)
- WG 210 (primary fitment for this SKU)
- WG 220 (heavy-duty versions with reinforced internal components)
During installation, the assembly must be paired with the correct 4657298103: HOUSING REAR SECTION to ensure proper output flange alignment. All internal fasteners and alignment pins, such as the 0631306816: CYLINDRICAL PIN and 0636100801: CAP SCREW, must be replaced during rebuild to maintain torque specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201167 | HOUS.FRONT SECT | Front section housing the input shaft and pump drive |
| 4657201171 | HOUSING REAR PART | Rear casing enclosing the output planetary set |
| 4657298103 | HOUSING REAR SECTION | Extended rear section for PTO or flange adapters |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | M10 bolt for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate for clutch piston retention |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit (thin) |
| 4657301035 | SCREEN SHEET | Coarse mesh filter for hydraulic circuit (thick) |
| 0636100803 | CAP SCREW | M12 bolt for high-torque housing joints |
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