Overview
The ZF 4656.054.033 4 WG 160 Powershift Transmission Assembly is a complete, fully assembled unit designed for heavy-duty industrial and agricultural machinery. This core assembly integrates the main gear cluster, clutch packs, and hydraulic control elements into a single ready-to-install package. As a complete unit, the SKU 4656.054.033 replaces the need to source individual internal components, significantly reducing rebuild time. It sits at the heart of the driveline, transferring torque from the engine through the torque converter and into the output shaft. For a full installation, this assembly is typically mated to the ENGINE CONNECTION and the CONVERTER BELL to ensure proper alignment and sealing.
Symptoms of Failure
When the ZF 4656.054.033 assembly begins to fail, operators typically notice one or more of the following specific issues:
- Erratic or delayed shifting: The transmission hesitates or slams into gear due to worn clutch discs or degraded hydraulic seals within the assembly.
- Torque converter shudder: A noticeable vibration during acceleration under load, indicating internal wear in the stator or turbine components.
- External oil seepage at the bell housing: Leaks often originate from the interface between the assembly and the HEXAGON SCREW mounting points or the COVER gasket.
- Loss of power in forward gears: The machine struggles to maintain speed on inclines, a classic sign of slipping clutch packs inside the main unit.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4656.054.033 |
| Assembly Type | Complete Powershift Unit (4 WG 160) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 410 mm |
| Housing Material | High-Grade Cast Iron (GGG-40) |
| OEM Reference | ZF 4 WG 160 |
| Torque Capacity | 1600 Nm (1180 lb-ft) |
Compatibility
This complete unit is specifically engineered for the ZF WG 160 series. While the core assembly is unique to the 160 series, it shares mounting patterns with the WG 180 and WG 200 series for certain bell housing and connection components. It is directly compatible with all variants of the 4 WG 160, including those used in telehandlers, wheel loaders, and forklifts. For proper installation, ensure the INPUT SHAFT and DIAPHRAGM are inspected for wear before final assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656130023 | ENGINE CONNECTION | Couples transmission to engine flywheel housing |
| 4656330008 | CONVERTER BELL | Houses the torque converter assembly |
| 0636100713 | HEXAGON SCREW | Secures bell housing to main transmission case |
| 4657330037 | COVER | Seals the rear of the transmission housing |
| 0636100801 | CAP SCREW | Fastens valve body and internal components |
| 0637006281 | HEXAGON NUT | Locks studs on the converter housing |
| 4657330005 | DIAPHRAGM | Regulates hydraulic pressure to clutch packs |
| 4657330053 | INPUT SHAFT | Transfers torque from converter to gear train |
| 0636102411 | HEXAGON SCREW | Mounts the cover plate to the housing |
| 0735302389 | BALL BEARING | Supports the input shaft rotation |
Frequently Asked Questions
Q: Is the 4656.054.033 a direct replacement for a 4 WG 160 transmission?
A: Yes, this is the complete assembly unit. It replaces the entire internal gear and clutch assembly, but you must reuse or replace the external housings and the COVER separately if damaged.
Q: Can I install this unit without removing the transmission from the machine?
A: No. This is a core assembly that requires full removal of the transmission from the vehicle. You will need to detach the CONVERTER BELL and ENGINE CONNECTION to access the mounting points.
Q: What is the typical lifespan of this assembly under normal operating conditions?
A: With proper maintenance and correct oil levels, the 4656.054.033 typically lasts 8,000 to 12,000 hours. Failure of the BALL BEARING or INPUT SHAFT can reduce this lifespan significantly.
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Phone: +86 158 2286 3467 |
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