Overview
The ZF 4657.056.108 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated, factory-matched assembly designed for heavy-duty off-highway applications. This complete unit serves as the core power transfer module within the WG 210 series, combining the torque converter, planetary gear sets, and hydraulic control system into a single, ready-to-install package. The SKU 4657.056.108 identifies a direct replacement for OEM assemblies, eliminating the need for piecemeal rebuilding. It sits centrally in the driveline, connecting the engine output to the final drive components. For optimal sealing and structural integrity, this assembly is paired with the 4657101079: TRANSMISSION HOUSING, which encloses the rotating elements and maintains oil circulation under high pressure.
Symptoms of Failure
- Erratic gear engagement and slipping under load: When the complete unit wears, internal clutch pack tolerances degrade, causing the transmission to slip during acceleration or under heavy torque, a common issue in WG 210 units.
- Persistent oil leaks at housing joints: Fatigue in the main casing or gasket surfaces leads to fluid seepage around the 4657201166: HOUS.FRONT SECT and rear interfaces, resulting in low oil levels and overheating.
- Delayed or harsh shifting: Worn valve body components within the assembly cause pressure drops, producing a noticeable lag between gear changes or abrupt, jarring shifts during operation.
- Unusual whining or grinding noises: Bearing wear or planetary gear damage inside the complete unit generates metallic sounds, particularly when the transmission is cold or under deceleration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Complete Powershift Transmission Assembly |
| ZF Part Number | 4657.056.108 |
| Series | WG 210 |
| Estimated Weight | 385 kg (849 lbs) |
| Housing Material | High-Grade Cast Iron (GGG-40) |
| Overall Length | 720 mm |
| Overall Width | 510 mm |
| Overall Height | 580 mm |
| OEM Reference | ZF 4657.056.108 |
| Torque Capacity | 2100 Nm (estimated) |
| Fluid Capacity | 22 Liters (approx.) |
Compatibility
This complete unit is engineered for the WG 210 series of ZF powershift transmissions. It is directly compatible with models including the WG 180, WG 200, and WG 210, which are commonly deployed in wheel loaders, forklifts, and telescopic handlers. The assembly integrates with the 4657201169: HOUSING REAR PART and the 4657298104: HOUSING REAR SECTION to complete the driveline enclosure. It is not backward-compatible with older WG 120 or WG 150 series without significant adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101079 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing for torque converter interface |
| 4657201169 | HOUSING REAR PART | Rear casing for output shaft and bearing support |
| 4657298104 | HOUSING REAR SECTION | Extended rear section for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locking plate for bolt retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | High-tensile bolt for rear housing |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
