Overview
The ZF 4657.056.152 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 rotating assembly within the WG 210 series, it directly governs torque delivery and gear selection. The SKU 4657.056.152 identifies this as a complete unit, distinct from individual internal components. When replacing this assembly, it is critical to inspect the surrounding structural castings such as the TRANSMISSION HOUSING and the HOUS.FRONT SECT for wear or damage before installation.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn clutch discs or damaged seals inside the assembly cause the transmission to hesitate or slip when shifting under heavy torque.
- Metallic grinding noise from the bell housing: Bearing failure or gear tooth chipping produces a distinct grinding sound, especially during deceleration or low-speed operation.
- Hydraulic pressure loss and delayed shifting: Internal leakage past worn pistons or valve bores leads to low line pressure, resulting in sluggish or harsh shifts.
- Contaminated transmission fluid with metallic debris: Friction material shedding or gear wear introduces visible metal particles into the oil, often accompanied by a burnt odor.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4657.056.152 |
| Assembly Type | Complete Powershift Unit (6-speed) |
| Series | WG 210 |
| Estimated Dry Weight | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Primary Material | Cast Iron Housing / Alloy Steel Gears |
| OEM Reference | ZF 4657.056.152 |
| Torque Capacity (est.) | 2100 Nm |
Compatibility
This complete unit is specifically engineered for the ZF WG 210 transmission series. It is also compatible with select variants of the WG 180 and WG 200 series where the bell housing pattern and input shaft spline match. For proper fitment, always verify the rear mounting interface against the HOUSING REAR PART and the HOUSING REAR SECTION on your specific machine. This assembly is not backward-compatible with older WG 120 or WG 150 models without significant adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for the gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing the input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear casing supporting output shaft bearings |
| 4657298102 | HOUSING REAR SECTION | Extended rear section for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing joint faces |
| 4656301148 | FIXING PLATE | Retains bearing preload in the rear housing |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for sump return line |
| 0636100803 | CAP SCREW | Fastener for clutch pack retaining ring |
