Overview
The ZF 4657.056.149 6 WG 210 Powershift Transmission Assembly is a complete, factory-grade replacement unit engineered for heavy-duty off-highway vehicles and industrial machinery. As the core hydraulic-mechanical assembly in the WG 210 series, this unit integrates the torque converter, planetary gear sets, and clutch packs into a single sealed housing. The SKU 4657.056.149 represents the fully assembled transmission, ready for direct installation. It sits between the engine bell housing and the final drive, managing power distribution across six forward speeds and one reverse. For proper sealing and structural integrity, this assembly mates with the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT, which together form the rigid casing that protects internal components.
Symptoms of Failure
- Delayed or harsh gear engagement: When the internal clutch packs or valve body wear, operators experience a noticeable lag or violent shift shock, especially when moving from neutral to forward or reverse.
- Hydraulic fluid leaks at housing joints: Cracks or warping in the main casing cause oil seepage around the mating surfaces. This often requires inspection of the 4657201170: HOUSING REAR PART and 4657298102: HOUSING REAR SECTION for stress fractures.
- Loss of power under load: Slipping clutches or worn planetary gears prevent the transmission from transferring torque effectively, causing the machine to stall or lose speed on inclines.
- Unusual whining or grinding noises: Metal-to-metal contact from failed bearings or damaged gear teeth produces a high-pitched whine or low grinding sound during operation.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4657.056.149 |
| Transmission Series | WG 210 (6 WG 210) |
| Type | Powershift, Full Assembly |
| Weight (estimated) | 385 kg (849 lbs) |
| Dimensions (L x W x H) | 720 x 480 x 510 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| OEM Reference | ZF 4657.056.149 |
| Torque Capacity | Up to 2,100 Nm |
| Fluid Capacity | Approx. 28 liters (ATF) |
Compatibility
This complete unit is specifically designed for the ZF WG 210 series powershift transmissions. It is also compatible with the following ZF models that share the same bolt pattern and hydraulic architecture: WG 180, WG 200, and WG 211. These transmissions are commonly found in telehandlers, wheel loaders, and agricultural tractors from manufacturers such as JCB, Manitou, and Claas. Always verify the bell housing and output flange configuration before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for torque converter |
| 4657201170 | HOUSING REAR PART | Rear casing section supporting output shaft |
| 4657298102 | HOUSING REAR SECTION | Additional rear housing segment for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | M12 bolt for securing housing sections |
| 4656301148 | FIXING PLATE | Mounting plate for transmission support |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M16 bolt for heavy-duty flange connections |
