Overview
The ZF 4657.055.100 5 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated drop-in replacement for heavy-duty off-highway applications. This complete assembly serves as the core power transfer module within the WG 210 series, managing clutch engagement and gear ratio selection under high torque loads. The SKU 4657.055.100 designates a factory-matched unit that includes the main shaft cluster, clutch packs, and valve body components. When installing this assembly, it is critical to verify the condition of the surrounding structural components, particularly the 4657101081: TRANSMISSION HOUSING, which provides the primary mounting envelope for the complete unit.
Symptoms of Failure
- Delayed or harsh engagement: When the complete unit wears, operators often report a noticeable lag between shifting commands and actual gear engagement, accompanied by a jarring clunk.
- Intermittent power loss under load: A failing assembly may cause the transmission to momentarily slip or lose drive torque when climbing grades or pushing heavy loads.
- Contaminated transmission fluid: Internal wear particles from the complete unit can turn the oil dark or produce a burnt odor, indicating clutch pack degradation.
- External oil seepage at mating flanges: Worn seals within the assembly can cause fluid to weep where the unit joins the 4657201166: HOUS.FRONT SECT or the 4657201172: HOUSING REAR PART.
Technical Specifications
| Parameter | Value |
|---|---|
| Overall Length | 685 mm (27.0 in) |
| Overall Width | 420 mm (16.5 in) |
| Overall Height | 510 mm (20.1 in) |
| Dry Weight | 195 kg (430 lb) |
| Primary Material | Cast iron housing with hardened steel gears |
| OEM Reference | ZF 4657.055.100 |
| Torque Capacity | 2,100 Nm (1,549 lb-ft) |
| Number of Speeds | 5 forward / 1 reverse |
Compatibility
This complete unit is engineered specifically for the ZF WG 210 series powershift transmissions. It is also compatible with the WG 180 and WG 200 series when used with the appropriate adapter hardware, such as the 4657298105: HOUSING REAR SECTION. The assembly will fit most ZF 5 WG 210 configurations found in telehandlers, wheel loaders, and industrial tractors manufactured between 2005 and 2020. Always cross-reference your existing transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101081 | TRANSMISSION HOUSING | Main structural enclosure for the complete unit |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201172 | HOUSING REAR PART | Rear section housing for output bearing retention |
| 4657298105 | HOUSING REAR SECTION | Alternate rear housing for extended tail configurations |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Retention plate for clutch pack assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit protection |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump return |
| 0636100803 | CAP SCREW | High-strength bolt for final drive attachment |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
