Overview
This complete ZF 4656.054.019 4 WG 160 Powershift Transmission Assembly is a fully integrated unit designed for heavy-duty industrial applications. It serves as the central power distribution hub within the WG 160 series, managing torque conversion and gear selection for off-highway vehicles. The SKU 4656.054.019 replaces worn or failed assemblies, restoring original shift quality and load-handling capacity. It interfaces directly with the 4656101032: TRANSMISSION HOUSING to ensure precise alignment of internal components.
Symptoms of Failure
- Delayed or harsh gear engagement: When the assembly wears, operators notice a pronounced lag between shifting commands and actual gear changes, often accompanied by a jarring clunk.
- Torque converter shudder under load: A rhythmic vibration during acceleration indicates internal wear within the powershift clutches, reducing efficiency in graders and loaders.
- External oil seepage at housing joints: Leaks develop around the mating surfaces, particularly where the 4656201075: HOUS.FRONT SECT connects, leading to low fluid levels and eventual overheating.
- Intermittent loss of drive in forward gears: A slipping sensation that worsens under heavy loads signals that the complete unit requires replacement to avoid catastrophic failure.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4656.054.019 |
| Assembly Type | 4 WG 160 Powershift (Complete Unit) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 410 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Max Input Torque | 1,600 Nm |
| Fluid Capacity | 14.5 liters (ZF EcoFluid M-1) |
| OEM Reference | ZF 4 WG 160 |
Compatibility
This complete assembly is engineered for the ZF WG 160 series and is directly compatible with WG 160, WG 180, and WG 200 transmission models used in wheel loaders, telehandlers, and industrial tractors. It also fits select WG 150 variants with minor adapter modifications. The unit integrates with the 4656201034: HOUSING REAR PART and the 4472239177: HOUSING REAR PART to complete the structural envelope. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101032 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing torque converter |
| 4656201034 | HOUSING REAR PART | Rear structural support for output shaft |
| 4472239177 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100817 | CAP SCREW | M12 fastener for housing joints |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M10 bolt for cover plates |
| 4681301040 | OIL FEED.HOUSG. | Lubrication supply manifold |
Frequently Asked Questions
Q: Can this complete unit be installed without removing the transmission from the vehicle?
A: No. The ZF 4656.054.019 is a complete assembly that requires full transmission removal and disassembly at the housing flanges. We recommend replacing the 4656201075: HOUS.FRONT SECT and all seals simultaneously.
Q: What is the typical service life of this assembly under heavy load?
A: In wheel loader applications with proper maintenance (oil changes every 1,000 hours), the unit typically lasts 8,000–12,000 operating hours. Early symptoms like shuddering indicate imminent failure.
Q: Does this part include the torque converter?
A: Yes, the 4 WG 160 complete unit includes the integrated torque converter and all clutch packs. The 4656101032: TRANSMISSION HOUSING must be reused if not included in your order.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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