Overview
The ZF 4657.056.118 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, drop-in replacement for heavy-duty powershift applications. This complete unit integrates the main gear cluster, clutch packs, and hydraulic control components within a sealed assembly. Designed for the WG 210 series, the SKU 4657.056.118 serves as the central power transfer module, converting engine torque into precise, multi-speed output for construction and agricultural machinery. It mounts directly between the engine bellhousing and the final drive, requiring the TRANSMISSION HOUSING to secure the main shaft assembly and the HOUS.FRONT SECT to enclose the forward clutch drums.
Symptoms of Failure
When the ZF 4657.056.118 assembly begins to fail, operators will notice distinct performance degradation. Common failure indicators include:
- Delayed engagement or gear slipping under load: The transmission hesitates before moving or loses torque during uphill operation, often caused by worn clutch discs or degraded seals inside the unit.
- Hydraulic oil leaks at the rear seal interface: Fluid weeping from the joint between the assembly and the HOUSING REAR PART indicates a compromised gasket or cracked housing.
- Erratic shifting or harsh clutch engagement: Sudden, jarring gear changes suggest internal valve body wear or contamination within the assembly.
- Unusual whining or grinding noises during operation: Metallic sounds from the center of the unit point to bearing failure or gear tooth damage.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.056.118 |
| Assembly Type | Complete Powershift Unit (6 WG 210) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Primary Material | Cast Iron Housing with Steel Gears |
| OEM Reference | ZF 4657.056.118 |
| Torque Capacity (est.) | 2100 Nm |
Compatibility
This complete unit is engineered for the ZF WG 210 series powershift transmissions. It is directly compatible with the following ZF models: WG 180, WG 200, WG 210, and WG 250 series. The assembly also integrates with the HOUSING REAR SECTION for final drive connections. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural enclosure for gear shafts |
| 4657201166 | HOUS.FRONT SECT | Front section housing clutch packs |
| 4657201170 | HOUSING REAR PART | Rear cover for output shaft support |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for PTO adapters |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing assembly |
| 4656301148 | FIXING PLATE | Secures clutch pack retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | High-tensile bolt for rear housing |
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