Overview
The ZF 4642.056.041 6 WG 150 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. This assembly integrates the main gear cluster, clutch packs, and hydraulic control components into a single ready-to-install package. As the core of the WG 150 series, the SKU 4642.056.041 replaces the entire rotating assembly, eliminating the need for piecemeal repairs. It sits between the torque converter and the output flange, directly interfacing with the TRANSMISSION HOUSING and the TRANSMISSION HOUSING to form a sealed, pressurized system. This unit is engineered for rebuilders and fleet operators requiring a drop-in solution with zero core assembly time.
Symptoms of Failure
When the ZF 4642.056.041 assembly begins to degrade, operators will notice distinct performance issues. Delayed engagement under load is a primary indicator, often accompanied by a soft or “slipping” feel when shifting from neutral to forward. Intermittent gear hunting at moderate speeds suggests internal clutch pack wear. Contaminated oil with metallic debris signals advanced component fatigue, often traced to the planetary gear sets. Finally, audible whining or grinding noises from the transmission housing during deceleration point to bearing failure within the assembly.
Technical Specifications
| Specification | Value |
|---|---|
| Assembly Weight | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Housing Material | High-Grade Cast Iron (GGG-40) |
| Clutch Pack Material | Sintered Bronze / Steel |
| Max Input Torque | 1,500 Nm |
| OEM Reference | ZF 4642.056.041 |
| Bolt Torque Spec | 120 Nm (M12 fasteners) |
Compatibility
This complete unit is specifically designed for the ZF WG 150 series transmissions. It is also mechanically compatible with the WG 180 and WG 200 series when used with the correct GROOVED STUD kit for housing alignment. The assembly fits all WG 150 variants used in loaders, graders, and industrial tractors from 2010 onward. Always verify the TYPE PLATE on your existing unit to confirm series compatibility before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for the assembly |
| 4642301205 | TRANSMISSION HOUSING | Secondary housing for clutch pack section |
| 0730365125 | TYPE PLATE | Identification plate for model verification |
| 0631311009 | GROOVED STUD | Alignment fastener for housing mating |
| 4642301168 | SCREEN SHEET | Oil filter screen for hydraulic circuit |
| 4642301169 | SCREEN SHEET | Secondary oil filter screen |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing flanges |
| 4642301186 | SCREEN SHEET | Fine mesh screen for valve body |
| 4644106300 | SHIFT SYSTEM | Hydraulic shift control module |
| 4644306500 | COVER PLATE | Access cover for clutch pack inspection |
