Overview
The ZF 4657.055.111 5 WG 210 Powershift Transmission Assembly is a complete, factory-grade unit designed for heavy-duty off-highway machinery. This assembly serves as the core power transfer module within the WG 210 series, integrating all rotating clutches, planetary gear sets, and hydraulic control valves into a single, pre-assembled package. The SKU 4657.055.111 denotes a fully built transmission ready for direct installation, eliminating the need for piecemeal component assembly. It sits between the engine bell housing and the final drive, managing torque distribution across five forward speeds. For maximum structural integrity, this unit is typically mated to a 4657101082: TRANSMISSION HOUSING, which provides the rigid outer shell necessary to withstand high torsional loads.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn internal clutch packs or degraded sealing rings within the assembly cause the transmission to hesitate or slip when shifting between forward ranges, particularly under heavy torque.
- External oil leaks at housing seams: Cracks or fatigue in the main casing often lead to fluid weeping around the joint between the 4657201166: HOUS.FRONT SECT and the 4657201170: HOUSING REAR PART, resulting in low oil levels and eventual overheating.
- Metallic grinding noise during neutral-to-drive shifts: Internal bearing failure or planetary gear damage produces a distinct grinding sound, often accompanied by vibration through the chassis.
- Delayed hydraulic pressure buildup: A failing pump or blocked internal passages cause a noticeable lag (3-5 seconds) before the transmission engages after startup.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4657.055.111 |
| Assembly Type | Complete Powershift Transmission (5-Speed) |
| Dry Weight (approx.) | 385 kg (849 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 560 mm |
| Primary Material | High-Grade Cast Iron / Alloy Steel |
| OEM Reference | ZF 5 WG 210 |
| Max Input Torque | 1,200 Nm (estimated) |
| Hydraulic Fluid Capacity | 22 liters (approx.) |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series of powershift transmissions. It is directly compatible with models including the WG180, WG200, and WG210 when used in wheel loaders, graders, and industrial tractors. The assembly also interfaces with the 4657298102: HOUSING REAR SECTION to complete the driveline enclosure. For auxiliary components, the unit requires a 0631306816: CYLINDRICAL PIN for alignment and a 0636100801: CAP SCREW for secure mounting. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main outer casing for gear support |
| 4657201166 | HOUS.FRONT SECT | Front section of the housing |
| 4657201170 | HOUSING REAR PART | Rear portion of the housing |
| 4657298102 | HOUSING REAR SECTION | Complete rear housing section |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for assembly |
| 0636100801 | CAP SCREW | Fastener for housing bolts |
| 4656301148 | FIXING PLATE | Secures internal components |
| 4657301032 | SCREEN SHEET | Oil filter screen (primary) |
| 4657301033 | SCREEN SHEET | Oil filter screen (secondary) |
| 0636100803 | CAP SCREW | Fastener for rear section |
