Overview
The ZF 4642.054.052 4 WG 150 Powershift Transmission Assembly is a complete, factory-sealed unit designed for heavy-duty off-highway applications. This assembly integrates the torque converter, planetary gear sets, and hydraulic clutch packs into a single drop-in module. As the core of the WG 150 Series, it manages power distribution from the engine to the driveline under extreme load cycles. The SKU 4642.054.052 replaces worn or failed assemblies, ensuring OEM-specified shift quality and torque capacity. When installing this unit, technicians often pair it with a new TRANSMISSION HOUSING (4642101114) to guarantee precise alignment, and they verify the TYPE PLATE (0730365125) for correct model identification.
Symptoms of Failure
- Erratic or delayed gear engagement – When the assembly’s internal clutch packs wear, operators experience hesitation or harsh shifts, especially when moving from neutral to forward under load.
- Torque converter shudder – A vibration or chatter during low-speed maneuvering indicates worn stator or turbine components within the 4 WG 150 unit.
- Internal hydraulic leaks – Loss of transmission fluid pressure leads to slipping under load, often accompanied by burnt oil smell or visible drips from the bell housing area.
- No forward or reverse movement – Complete loss of drive, even with proper fluid levels, signals catastrophic failure of the planetary gear set or clutch piston seals.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4642.054.052 |
| Assembly Type | 4 WG 150 Powershift Transmission (Complete Unit) |
| Dry Weight | Approx. 285 kg (628 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 560 mm |
| Housing Material | High-strength cast iron (GGG-40 equivalent) |
| Torque Capacity | Up to 1,500 Nm |
| OEM Reference | ZF 4 WG 150 |
Compatibility
This complete assembly is engineered for the ZF WG 150 series. It is directly compatible with the following ZF transmission models: WG 150, WG 180, and WG 200 when used with the appropriate adapter housing. For WG 200 applications, ensure the TRANSMISSION HOUSING (4642301213) is installed to accommodate the larger bell housing pattern. Additionally, the unit requires the GROOVED STUD (0631311009) for secure mounting to the engine flywheel housing. Always cross-reference the original transmission’s serial number with the type plate before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101114 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301213 | TRANSMISSION HOUSING | Alternate housing for WG 200 series |
| 0730365125 | TYPE PLATE | Identification plate with serial number |
| 0631311009 | GROOVED STUD | Engine-to-transmission mounting stud |
| 4642301168 | SCREEN SHEET | Oil filter screen for hydraulic circuit |
| 4642301169 | SCREEN SHEET | Fine mesh oil strainer |
| 0636100621 | HEXAGON SCREW | Fastener for housing assembly |
| 4642301186 | SCREEN SHEET | Secondary oil filter element |
| 4644106319 | SHIFT SYSTEM | Hydraulic valve body for gear selection |
| 4644159338 | SHIFT SYSTEM | Electronic shift control module |
