Overview
The ZF 4657.065.001 5 WG 211 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, converting engine torque into controlled, multi-speed output for wheel loaders, dozers, and industrial vehicles. As a drop-in replacement for the WG 211 Series, the SKU 4657.065.001 includes all internal clutch packs, planetary gearsets, and valve bodies pre-assembled. It mounts directly to the engine bellhousing and interfaces with the 4657101049: TRANSMISSION HOUSING to form the main structural shell, while the 4657301130: HOUS.FRONT SECT and 4657301131: HOUSING REAR PART enclose the rotating assemblies. Precision alignment is ensured by the 0631306816: CYLINDRICAL PIN, which locates the housing sections during assembly.
Symptoms of Failure
- Erratic gear engagement or slipping under load: Worn clutch discs or degraded seals inside the assembly cause the transmission to hesitate or lose torque during acceleration, a common failure mode for the WG 211 unit.
- External oil leaks at housing joints: Cracks or gasket failure in the main casing, often near the interface with the 4657301130: HOUS.FRONT SECT, result in visible hydraulic fluid drips after operation.
- Unusual whining or grinding noises: Damaged planetary bearings or gear tooth wear within the complete assembly produce metallic sounds, especially when shifting between forward and reverse ranges.
- Delayed or no response to shift commands: Internal valve body sticking or pump cavitation, often linked to debris from a failing 4657201133: SCREEN SHEET, prevents the transmission from engaging selected gears.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.065.001 |
| Assembly Type | Complete Powershift Unit (5-speed) |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| OEM Reference | ZF 5 WG 211 |
| Max Input Torque | 1,200 Nm |
| Oil Capacity | 22 liters (approx.) |
Compatibility
This complete unit is engineered for the ZF WG 211 Series of powershift transmissions. It is directly compatible with the following ZF models: WG 180, WG 200, WG 211, and WG 250 series used in articulated dump trucks, wheel loaders, and telehandlers. The assembly also fits select ZF 4 WG and 5 WG variants when paired with the correct 4657101049: TRANSMISSION HOUSING. Always verify the bellhousing pattern and torque converter match before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657301130 | HOUS.FRONT SECT | Front section enclosing clutch packs |
| 4657301131 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636102489 | CAP SCREW | Fastener for housing joint |
| 4656301148 | FIXING PLATE | Retains bearing preload |
| 0636102463 | CAP SCREW | Bolt for front section |
| 4657201133 | SCREEN SHEET | Oil filter mesh for hydraulic circuit |
| 0636115287 | CAP SCREW | Fastener for rear housing |
| 4657301065 | PLATE | Spacer plate for valve body |
