Overview
The ZF 4657.055.141 5 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated, factory-assembled gearbox core designed for heavy-duty off-highway machinery. This complete unit serves as the central power transfer module, housing all planetary gear sets, clutch packs, and hydraulic control valves within a single sealed assembly. As a direct replacement for the WG 210 series, the SKU 4657.055.141 eliminates the need for piecemeal component rebuilding, offering a drop-in solution that restores original equipment performance. The assembly integrates seamlessly with the TRANSMISSION HOUSING to provide structural integrity and oil distribution pathways.
Symptoms of Failure
- Erratic gear engagement or slipping under load: When the complete unit wears, internal clutch pack clearances increase, causing delayed shifts or complete loss of drive in specific ranges. This is often accompanied by harsh engagement noises.
- External oil leaks at housing seams: Cracks or warpage in the main casing allow transmission fluid to escape, typically pooling near the bell housing or output flange. This symptom directly relates to fatigue in the HOUS.FRONT SECT and rear sections.
- Metallic debris in the oil pan: Internal bearing or gear failure generates fine metallic particles that contaminate the hydraulic system, leading to valve sticking and reduced line pressure.
- Overheating during continuous operation: A failing complete unit cannot maintain proper oil flow, causing thermal runaway that damages seals and the HOUSING REAR PART.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.055.141 |
| Assembly Type | Complete Powershift Transmission |
| 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 5 WG 210 |
| Max Input Torque | 2,100 Nm |
| Fluid Capacity | 22 liters (ATF Dexron III) |
Compatibility
This complete unit is engineered for the ZF WG 210 series powershift transmissions. It is directly compatible with the following ZF model families: WG180, WG200, and WG210. These transmissions are commonly found in wheel loaders, forklifts, and telehandlers from manufacturers such as Liebherr, JCB, and Caterpillar. The assembly also interfaces with the HOUSING REAR SECTION to complete the drivetrain enclosure. Always verify your transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear casing supporting output flange and PTO |
| 4657298102 | HOUSING REAR SECTION | Extended rear section for additional gear sets |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing joint connections |
| 4656301148 | FIXING PLATE | Locking plate for bearing retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil suction line |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for return line |
| 0636100803 | CAP SCREW | High-tensile bolt for clutch pack retention |
