Overview
The ZF 4657.055.307 5 WG 210 Powershift Transmission Assembly represents a complete, factory-grade replacement unit engineered for heavy-duty off-highway machinery. This fully assembled transmission sits at the core of the drivetrain, managing torque distribution across five forward speeds and one reverse gear via a hydraulic clutch pack system. Designed for direct bolt-in installation, the SKU 4657.055.307 eliminates the need for partial rebuilds, providing a drop-in solution for ZF WG 210 series transmissions. When installing this unit, ensure the HOUS.FRONT SECT is properly aligned to maintain structural integrity and oil channel alignment.
Symptoms of Failure
- Delayed or harsh gear engagement: Worn clutch packs or hydraulic pressure loss cause hesitation when shifting from neutral to forward or reverse, often accompanied by a jarring clunk.
- Internal oil leaks and low pressure: Degraded seals allow transmission fluid to bypass, leading to visible drips near the bell housing or reduced shift quality under load.
- Torque converter shudder: Vibration during acceleration at low speeds indicates failing lock-up clutches or contaminated hydraulic fluid within the assembly.
- Complete loss of drive in one gear range: A broken planetary gear set or damaged clutch hub results in the transmission failing to transmit power in a specific forward gear.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.055.307 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 210 |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 720 mm |
| Housing Material | Cast Iron (GGG-40) |
| OEM Reference | ZF 4657.055.307 |
| Torque Capacity | 850 Nm (627 lb-ft) |
| Input Spline | 14-tooth, 2.5″ diameter |
Compatibility
This complete unit is specifically designed for the ZF WG 210 series, but its core architecture shares components with the WG 180 and WG 200 series. It is commonly found in telehandlers, wheel loaders, and agricultural tractors from manufacturers such as JCB, Manitou, and Claas. The assembly integrates directly with the 螺栓 (cap screw) pattern of the WG 210 housing, and requires the O-RING for the main pressure line seal. Additionally, the CYLINDRICAL PIN must be installed to index the clutch pack assembly correctly during rebuild.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for bell housing mounting |
| 0636115293 | 螺栓 (Cap Screw) | M12 bolt for securing housing halves |
| 0634313603 | O-RING | Hydraulic seal for main pressure circuit |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for clutch pack assembly |
| 0636100801 | CAP SCREW | M10 cap screw for valve body mounting |
| 4656301148 | FIXING PLATE | Retaining plate for clutch piston |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil pump intake |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for return line |
| 0636100803 | CAP SCREW | M8 cap screw for oil pan attachment |
| 4656301047 | OIL FEED.HOUSG. | Oil feed housing for clutch lubrication |
