Overview
The ZF 4656.054.145 4 WG 160 Powershift Transmission Assembly is a complete, remanufactured unit engineered for heavy-duty industrial and agricultural machinery. This fully assembled transmission integrates the clutch packs, planetary gearsets, and hydraulic control system into a single drop-in solution. The SKU 4656.054.145 serves as the core power transfer component in the WG 160 series, converting engine torque into precisely modulated wheel speed for loaders, dozers, and telescopic handlers. When replacing this assembly, it is critical to inspect the surrounding structural components, including the TRANSMISSION HOUSING, as housing integrity directly affects gear alignment and oil circulation.
Symptoms of Failure
- Delayed engagement or gear slipping under load: Worn clutch discs or degraded seals inside the 4656.054.145 cause the transmission to hesitate before engaging forward or reverse gears, especially when operating on inclines.
- External oil leaks near the bell housing: Cracks in the HOUS.FRONT SECT or gasket failure allow transmission fluid to escape, leading to low pressure and eventual overheating.
- Erratic shifting or harsh clutch engagement: Internal hydraulic passage blockages or a failing torque converter stator cause the transmission to slam into gear, producing audible clunks during speed changes.
- Loss of power in high range: A failing planetary carrier or worn sun gear within the WG 160 assembly prevents the transmission from maintaining speed in higher gear ranges, reducing productivity.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4656.054.145 |
| Series | WG 160 |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Max Input Torque | 1,600 Nm |
| Oil Capacity | 18.5 liters (SAE 10W-30) |
| Compatible Housing Assembly | HOUSING REAR PART |
| Rear Section Reference | HOUSING REAR SECTION |
Compatibility
This complete unit is specifically designed for the ZF WG 160 series powershift transmissions. It is directly compatible with WG 160 models used in Case IH, New Holland, and JCB loaders from the 2000s era. While the 4656.054.145 is not a direct fit for the larger WG 180 or WG 200 series without adapter plates, the internal clutch and planetary components share cross-compatibility with the WG 160.II and WG 160.III variants. Always verify the housing condition by inspecting the TRANSMISSION HOUSING and the HOUS.FRONT SECT for cracks before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101058 | TRANSMISSION HOUSING | Main structural casing for gear alignment |
| 4656201075 | HOUS.FRONT SECT | Front section housing the torque converter |
| 4656201079 | HOUSING REAR PART | Rear casing supporting output shaft bearings |
| 4656298051 | HOUSING REAR SECTION | Extended rear section for PTO integration |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 4656301148 | FIXING PLATE | Secures clutch pack retaining rings |
| 0636100817 | CAP SCREW | M10 bolt for housing flange fastening |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for suction line |
| 0636100803 | CAP SCREW | M12 bolt for rear section mounting |
Frequently Asked Questions
Q: Can the ZF 4656.054.145 be installed without replacing the housing?
A: Yes, but only if the existing TRANSMISSION HOUSING shows no cracks or warping. We recommend replacing the HOUS.FRONT SECT and HOUSING REAR PART simultaneously to ensure proper sealing.
Q: What is the typical lifespan of this complete unit in a wheel loader?
A: Under normal operating conditions with regular oil changes, the 4656.054.145 assembly lasts 8,000–10,000 hours. Failure often begins with wear in the FIXING PLATE or clogged SCREEN SHEET filters.
Q: Does this unit include the torque converter?
A: No, the 4656.054.145 is a complete transmission assembly without the torque converter. You must order the torque converter separately and secure it using CAP SCREW fasteners.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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