Overview
The ZF 4657.056.035 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully integrated, factory-assembled gearbox core designed for heavy-duty off-highway machinery. This complete unit serves as the central power distribution hub within the WG 210 series, converting engine torque into precise, multi-speed output for wheel loaders, graders, and industrial tractors. The SKU 4657.056.035 identifies a remanufactured or new-build assembly that includes the main gear cluster, clutch packs, and hydraulic control valves. It mounts directly between the engine bell housing and the final drive, with the TRANSMISSION HOUSING providing structural integrity and fluid containment. This unit is a direct replacement for worn or failed assemblies, restoring full shift performance and load-holding capability.
Symptoms of Failure
- Erratic or delayed gear engagement – When the complete unit loses internal seal integrity, hydraulic pressure drops, causing hesitation or harsh shifts under load. This is a common long-tail search query for “ZF WG210 transmission slipping under load.”
- External oil seepage from housing joints – Cracks or gasket failure in the HOUS.FRONT SECT or rear cover lead to visible fluid loss, often accompanied by a burnt clutch smell.
- Unusual whining or grinding noises – Worn bearings or gear tooth damage within the assembly produce metallic sounds, especially during deceleration or when shifting from forward to reverse.
- Inability to hold position on inclines – Internal clutch pack wear or a failed CYLINDRICAL PIN in the shift mechanism can cause the machine to creep or roll back when parked on a grade.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4657.056.035 |
| Assembly Type | Complete Powershift Transmission (6-speed) |
| Dry Weight (approx.) | 385 kg (849 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| OEM Reference | ZF 4657.056.035 / WG 210 |
| Max Input Torque | 2,100 Nm |
| Oil Capacity | 18 liters (SAE 10W-30) |
| Related Fastener | CAP SCREW (M12 x 1.5) |
| Related Fastener | CAP SCREW (M14 x 1.5) |
| Mounting Plate | FIXING PLATE |
| Filter Screen | SCREEN SHEET (fine mesh) |
| Filter Screen | SCREEN SHEET (coarse mesh) |
| Oil Feed Component | OIL FEED.HOUSG. |
Compatibility
This complete unit is engineered for the ZF WG 210 series powershift transmissions. It is directly compatible with models including the WG180, WG200, and WG210 variants commonly found in Case IH, New Holland, and JCB heavy equipment. The assembly also fits select ZF 6WG modular platforms where the HOUSING REAR PART and front section share identical bolt patterns. Always verify the bell housing flange and output yoke configuration against your machine’s serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4657201027 | HOUS.FRONT SECT | Front section housing input shaft and pump drive |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft and PTO |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | M12 fastener for housing bolts |
| 0636100803 | CAP SCREW | M14 fastener for heavy-duty joints |
| 4656301148 | FIXING PLATE | Locks bearing or gear in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic oil |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to clutch packs |
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