Overview
The ZF 4657.056.209 6 WG 210 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. This assembly integrates the main gear cluster, clutch packs, and hydraulic control components into a single ready-to-install package. As the core power transfer module in the WG 210 series, it replaces worn or failed assemblies to restore original shift quality and torque capacity. The SKU 4657.056.209 is a direct OEM-spec replacement, ensuring seamless fitment with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain structural integrity under load.
Symptoms of Failure
- Delayed or harsh gear engagement – Worn clutch discs or piston seals inside the assembly cause hesitation when shifting from neutral to forward or reverse, often accompanied by a loud clunk.
- Intermittent power loss under load – Internal hydraulic pressure drops due to worn valve bodies or seal rings, leading to slipping during grading or dozing operations.
- Contaminated transmission fluid – Metal debris from failing bearings or clutch plates appears as glitter in the oil, indicating internal wear that requires immediate replacement of the complete assembly.
- External oil seepage at housing joints – Cracks or warpage in the HOUSING REAR PART or the HOUSING REAR SECTION allow fluid to escape, reducing lubrication and accelerating component failure.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.209 |
| Transmission Series | WG 210 (6-speed powershift) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Max Input Torque | 2,100 Nm |
| OEM Reference | ZF 6 WG 210 |
Compatibility
This complete unit is engineered for the ZF WG 210 series, which includes models such as the WG180, WG200, and WG210. It is commonly found in articulated dump trucks, wheel loaders, and telehandlers from manufacturers like Volvo, Case, and JCB. The assembly directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT without modification. For rear-end sealing, the HOUSING REAR PART and the HOUSING REAR SECTION are required to complete the assembly. Always verify your transmission serial number 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 input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear cover for output shaft and PTO mounting |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for additional gear stages |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowel holes |
| 0636100801 | CAP SCREW | M12 fastener for housing joint clamping |
| 4656301148 | FIXING PLATE | Retainer plate for clutch piston springs |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M10 fastener for valve body mounting |
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