Overview
This genuine ZF 4642.054.205 is a complete 4 WG 150 Powershift Transmission Assembly, engineered for heavy-duty industrial applications. As a fully assembled unit, it integrates the torque converter, planetary gear sets, and hydraulic control system into a single, ready-to-install package. The SKU 4642.054.205 designates a specific production variant within the WG 150 series, optimized for consistent power delivery under high cyclic loads. This assembly sits at the core of the driveline, converting engine torque into controlled, shiftable power for wheel loaders, forklifts, and material handlers. It is a direct OEM-grade replacement designed to restore original performance without modifications.
Symptoms of Failure
When the 4 WG 150 assembly begins to degrade, operators will notice distinct operational issues. Recognizing these early signs prevents costly secondary damage.
- Erratic or harsh shifting: The transmission may slam into gear or hesitate between forward and reverse, indicating worn clutch packs or degraded valve body seals within the 4642.054.205 unit.
- Torque converter shudder: A vibration felt during initial acceleration under load, often caused by stator clutch failure or contaminated hydraulic fluid in the assembly.
- External oil seepage at the PTO housing: Leaks developing around the power take-off cover or main gasket surfaces signal seal fatigue, leading to low fluid levels and eventual gear slipping.
- Delayed engagement after shifting: A noticeable lag of 2-3 seconds when moving from neutral to drive, pointing to worn pump gears or a failing pressure regulator inside the transmission.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4642.054.205 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 150 (4-speed) |
| Dry Weight (approx.) | 385 kg (849 lbs) |
| Housing Material | High-strength cast iron |
| Overall Length | 785 mm |
| Overall Width | 520 mm |
| Overall Height | 610 mm |
| OEM Reference | ZF 4642.054.205 |
| Fluid Capacity | 22 liters (ZF TE-ML 03 spec) |
Compatibility
This complete unit is specifically engineered for the ZF WG 150 series and its direct derivatives. While the 4642.054.205 is a dedicated WG 150 assembly, its core architecture shares design principles with larger ZF powershift models. Verify your existing transmission model tag before ordering.
- ZF WG 150 (primary application – 4-speed, 4WG variant)
- ZF WG 180 (limited cross-compatibility with adapter plates; consult OEM manual)
- ZF WG 200 (not a direct fit; different bell housing pattern)
- ZF 4WG-150 (identical series; alternative nomenclature)
This assembly is commonly found in Kramer, Liebherr, and Terex wheel loaders from the 2000-2015 production era. Always cross-reference your chassis serial number with the ZF parts catalog to confirm fitment.
