Overview
The ZF 4657.056.024 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, direct-replacement gearbox core designed for heavy-duty off-highway machinery. This complete unit integrates the main drive train, clutch packs, and hydraulic control components into a single, ready-to-install assembly. As the central power transfer module in the WG 210 Series, it converts engine torque into controlled, multi-speed output for wheel loaders, graders, and industrial vehicles. The SKU 4657.056.024 identifies this as a factory-spec complete unit, ensuring seamless integration with existing driveline components. For structural integrity, this assembly relies on the 4657101033: TRANSMISSION HOUSING to encase the gear train, while the 4657201027: HOUS.FRONT SECT and 4657201012: HOUSING REAR PART provide precise alignment for the output shafts. Precision alignment is further ensured by the 0631306792: CYLINDRICAL PIN, which locates the housing sections during assembly.
Symptoms of Failure
- Erratic gear engagement or slipping under load: When the complete unit wears, internal clutch pack clearances increase, causing delayed shifts or loss of torque during operation—commonly searched as “ZF WG210 transmission slipping under load.”
- External oil leaks at housing seams: Degraded seals between the TRANSMISSION HOUSING and the front/rear sections lead to visible fluid drips, often reported as “ZF 4657.056.024 oil leak repair.”
- Unusual whining or grinding noises: Worn bearings or gear tooth damage within the assembly produce metallic sounds, especially in lower gears—a frequent query for “WG 210 powershift noise diagnosis.”
- Hydraulic pressure drop or sluggish response: Internal valve body wear or blocked oil passages cause delayed clutch actuation, often described as “ZF transmission slow to engage forward/reverse.”
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.024 |
| Assembly Type | Complete Powershift Unit (6 WG 210) |
| Overall Length | ~820 mm (32.3 in) |
| Overall Width | ~510 mm (20.1 in) |
| Overall Height | ~580 mm (22.8 in) |
| Dry Weight | ~285 kg (628 lbs) |
| Housing Material | High-strength cast iron (GGG-40) |
| Max Input Torque | 2,100 Nm (1,549 lb-ft) |
| Oil Capacity | ~22 liters (5.8 gal) |
| OEM Reference | ZF 6 WG 210 Series |
Compatibility
This complete unit is engineered for the ZF WG 210 Series powershift transmissions. Based on its design and SKU prefix, it is compatible with the following ZF models: WG 180, WG 200, WG 210, and WG 220 series. It is commonly used in articulated dump trucks, wheel loaders (e.g., ZF 6WG210 variants), and motor graders. Always verify your transmission model tag before installation; the 4657.056.024 unit replaces earlier complete assemblies with the same housing footprint.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing input shaft |
| 4657201012 | HOUSING REAR PART | Rear section supporting output flange |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing sections |
| 4656301148 | FIXING PLATE | Locks bearing preload |
| 4657301032 | SCREEN SHEET | Oil filter mesh (fine) |
| 4657301033 | SCREEN SHEET | Oil filter mesh (coarse) |
| 0636100803 | CAP SCREW | Fastener for valve body |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply manifold |
