Overview
The ZF 4656.054.152 4 WG 160 Powershift Transmission Assembly is a complete, factory-sealed unit engineered for heavy-duty off-highway machinery. This assembly integrates the main gear cluster, clutch packs, and hydraulic control components into a single drop-in replacement. As the core power transfer module, it sits between the engine flywheel and the final drive, managing torque distribution across four forward and reverse speeds. The SKU 4656.054.152 is a direct OEM-specification unit, ensuring precise alignment with the original drivetrain geometry. For full structural integrity, this assembly mates with the 4656101058: TRANSMISSION HOUSING and the 4656201075: HOUS.FRONT SECT to form a sealed, pressurized system.
Symptoms of Failure
- Erratic gear engagement and slipping under load: Worn clutch discs or degraded seals inside the assembly cause delayed or incomplete shifts, particularly when the transmission is hot.
- External oil seepage from bell housing: Cracks in the main casing or failed gaskets allow ATF to escape, often pooling near the flywheel area. This is a common failure mode for the 4656.054.152 unit.
- Abnormal grinding or whining noise in neutral: Bearing fatigue within the powershift section produces a metallic noise that increases with engine RPM, indicating imminent internal failure.
- Loss of hydraulic pressure and sluggish response: Internal leakage past piston rings or a damaged torque converter stator reduces line pressure, making the machine unresponsive to throttle input.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4656.054.152 |
| Assembly Type | Complete Powershift Transmission (4 WG 160) |
| Overall Length | ~ 720 mm |
| Dry Weight | ~ 185 kg |
| Housing Material | High-tensile cast iron (GGG-40) |
| OEM Reference | ZF 4 WG 160 Series |
| Bolt Torque Spec (Main Housing) | 120 Nm (M12 grade 10.9) |
| Fluid Capacity | ~ 12 liters (ZF TE-ML 03 spec) |
Compatibility
This complete unit is specifically designed for the ZF WG 160 series powershift transmissions. It is directly compatible with the WG 160, WG 161, and WG 162 models found in telehandlers, wheel loaders, and industrial tractors. While the core assembly is unique to the WG 160 platform, the rear mounting interfaces are shared with the WG 180 and WG 200 series. For proper installation, ensure the 4656201079: HOUSING REAR PART and the 4656298051: HOUSING REAR SECTION are inspected for wear before bolting the assembly into the chassis.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101058 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4656201075 | HOUS.FRONT SECT | Front section housing the torque converter and pump drive |
| 4656201079 | HOUSING REAR PART | Rear casing covering the output shaft and parking brake |
| 4656298051 | HOUSING REAR SECTION | Intermediate rear section for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 4656301148 | FIXING PLATE | Retains clutch piston springs in position |
| 0636100817 | CAP SCREW | M10 bolt for securing the valve body cover |
| 4656301016 | SCREEN SHEET | Fine mesh filter for the lube oil circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for the suction line |
| 0636100803 | CAP SCREW | M8 bolt for the rear housing flange |
Frequently Asked Questions
Q: Is the 4656.054.152 assembly a direct replacement for the original ZF 4 WG 160 unit?
A: Yes. This complete unit is manufactured to OEM specifications and includes all internal clutches, seals, and bearings. It bolts directly into the existing housing without modifications.
Q: What other parts should I replace when installing this transmission assembly?
A: We strongly recommend replacing the 4656101058: TRANSMISSION HOUSING and the 4656201075: HOUS.FRONT SECT if they show any scoring or pitting. Additionally, install new 0636100817: CAP SCREW fasteners to ensure proper clamp load.
Q: How do I verify the correct fluid type for this powershift unit?
A: Use only ZF TE-ML 03 approved transmission fluid. The unit holds approximately 12 liters. Overfilling can cause aeration and erratic shifting.
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Phone: +86 158 2286 3467 |
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