Overview
The ZF 4642.056.024 6 WG 150 Powershift Transmission Assembly is a complete, factory-grade unit designed for heavy-duty off-highway machinery. This assembly integrates the torque converter, planetary gear sets, and hydraulic control system into a single, ready-to-install package. As the core of the WG 150 series, it manages power distribution from the engine to the driveline, enabling smooth directional shifts under load. The SKU 4642.056.024 identifies this specific complete unit, which is critical for maintaining operational uptime in wheel loaders, telehandlers, and industrial tractors. When replacing this assembly, technicians often pair it with a new TRANSMISSION HOUSING to ensure structural integrity and proper sealing of the main case.
Symptoms of Failure
- Delayed or harsh engagement: When the assembly wears, internal clutch packs slip, causing a noticeable lag between gear selection and movement. This is a common long-tail search query for “ZF WG150 transmission slipping under load.”
- External oil leaks near the bell housing: Degraded seals in the complete unit allow transmission fluid to escape, often pooling around the mating surface with the engine. Search queries like “ZF 4642.056.024 oil leak repair” frequently target this symptom.
- Erratic shifting or loss of forward/reverse: Hydraulic pressure drops due to worn valve bodies or pump wear within the assembly lead to incomplete gear changes. Operators report “no reverse in ZF WG150” as a critical failure mode.
- Overheating during light operation: Internal friction from worn components generates excessive heat, triggering warning lights even under low load. This symptom drives searches for “ZF powershift transmission overheating causes.”
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.056.024 |
| Assembly Type | Complete Powershift Unit (6-speed) |
| Dry Weight | Approx. 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Max Input Torque | 1,500 Nm |
| OEM Reference | ZF 6 WG 150 |
Compatibility
This complete unit is engineered for the ZF WG 150 series, but its core architecture is shared across several ZF powershift families. It is directly compatible with WG 150 models used in loaders and graders from 2010 onward. With minor hydraulic adaptations, it can also serve as a replacement in WG 180 and WG 200 transmissions, though the housing bolt pattern differs. For precise fitment, always verify the bell housing alignment using the TRANSMISSION HOUSING variant specific to your machine. Additionally, the assembly requires a correct TYPE PLATE for serial number identification, and the GROOVED STUD for securing the shift cylinder.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural case for gear train |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing for different bell housing pattern |
| 0730365125 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Fastener for shift system mounting |
| 4642301168 | SCREEN SHEET | Oil filter mesh for hydraulic circuit |
| 4642301169 | SCREEN SHEET | Fine filtration screen for valve body |
| 0636100621 | HEXAGON SCREW | Bolt for housing assembly |
| 4642301186 | SCREEN SHEET | Suction strainer for pump inlet |
| 4644106300 | SHIFT SYSTEM | Hydraulic control module for gear selection |
| 4644306500 | COVER PLATE | Access cover for clutch pack inspection |
