Overview
The ZF 4657.056.151 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, factory-grade replacement for heavy-duty off-highway applications. This complete unit integrates the main gear cluster, clutch packs, and hydraulic control system within the WG 200 series architecture. As a direct-fit assembly, it eliminates the need for piecemeal rebuilding, reducing downtime for equipment in mining, construction, and material handling. The SKU 4657.056.151 is specifically engineered to interface with the TRANSMISSION HOUSING, ensuring precise alignment of all rotating components.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn clutch discs or valve body degradation inside the assembly cause delayed or incomplete shifts, particularly when the transmission is hot.
- External oil leaks at the housing joints: Cracks or gasket failure in the HOUS.FRONT SECT or HOUSING REAR PART allow hydraulic fluid to escape, leading to pressure loss and eventual transmission failure.
- Metallic grinding or whining noise during operation: Bearing wear or gear tooth spalling within the assembly produces audible distress signals, often accompanied by vibration in the driveline.
- Delayed reverse engagement: A failing torque converter or worn clutch packs cause a noticeable lag when shifting from neutral to reverse, a common symptom in high-hour units.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.056.151 |
| 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 | 550 mm |
| Housing Material | High-Grade Cast Iron (GGG-40) |
| Torque Capacity | 2,100 Nm (1,549 lb-ft) |
| OEM Reference | ZF 6 WG 210 |
| Related Fastener | CAP SCREW (M16 x 1.5) |
| Related Pin | CYLINDRICAL PIN |
| Related Plate | FIXING PLATE |
| Related Screen | SCREEN SHEET (Primary) |
| Related Screen (Alt) | SCREEN SHEET (Secondary) |
| Fastener (Alt) | CAP SCREW (M12 x 1.75) |
Compatibility
This complete unit is designed for the ZF WG 210 Series powershift transmissions. It is also compatible with the WG 180 and WG 200 series when used with the appropriate HOUSING REAR SECTION adapter. Common applications include ZF 6 WG 210, 6 WG 200, and 6 WG 180 models found in telehandlers, wheel loaders, and dump trucks from manufacturers such as Caterpillar, JCB, and Volvo CE. Always verify the housing variant before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201167 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201171 | HOUSING REAR PART | Rear casing for output shaft support |
| 4657298103 | HOUSING REAR SECTION | Adapter section for alternate models |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for main housing bolts |
| 4656301148 | FIXING PLATE | Secures clutch pack retaining ring |
| 4657301034 | SCREEN SHEET | Primary oil filter screen |
| 4657301035 | SCREEN SHEET | Secondary oil filter screen |
| 0636100803 | CAP SCREW | Fastener for rear housing section |
