Overview
This ZF 4657.024.143 4 WG 190 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway machinery. As the core power transfer module in the WG 190 series, this assembly integrates the torque converter, planetary gear sets, and clutch packs into a single sealed housing. The SKU 4657.024.143 is a direct replacement for original equipment transmissions, ensuring precise gear engagement under high torque loads. It interfaces directly with the 4657101051: TRANSMISSION HOUSING to form the main structural backbone of the drivetrain.
Symptoms of Failure
- Delayed or harsh gear engagement: When the complete unit wears, operators notice a pronounced lag or jarring shift between forward and reverse, often accompanied by a metallic clunk.
- Internal hydraulic pressure loss: Worn seals within the assembly cause erratic clutch application, leading to transmission overheating and slipping under load.
- Torque converter shudder: A vibration felt through the chassis during low-speed maneuvering indicates degradation of the stator or turbine components inside the 4 WG 190.
- External fluid seepage at mating flanges: Oil leaks often originate where the assembly joins the 4657201151: HOUS.FRONT SECT or the 4657201103: HOUSING REAR PART, indicating gasket failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.024.143 |
| Assembly Type | 4 WG 190 Powershift (Complete Unit) |
| Dry Weight (approx.) | 285 kg (628 lbs) |
| Overall Length | 720 mm |
| Overall Width | 510 mm |
| Overall Height | 480 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| OEM Reference | ZF 4 WG 190 |
| Torque Capacity (max) | 1,900 Nm |
| Fluid Capacity | 22 liters (ATF Dexron III) |
Compatibility
This complete unit is specifically engineered for the ZF WG 190 series. It is directly compatible with WG 180, WG 190, and WG 200 transmission models used in wheel loaders, telehandlers, and industrial tractors. The assembly also mates with the 4472239184: HOUSING REAR PART for extended driveline configurations. Always verify the bell housing pattern and output flange dimensions against your existing unit before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101051 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201151 | HOUS.FRONT SECT | Front section housing torque converter |
| 4657201103 | HOUSING REAR PART | Rear section supporting output shaft |
| 4472239184 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locking plate for clutch piston |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 bolt for rear housing |
Frequently Asked Questions
Q: Can this 4657.024.143 unit be rebuilt, or is it only sold as a complete assembly?
A: This is a complete, pre-assembled unit that includes all internal components. While individual parts like the 4657301032: SCREEN SHEET can be replaced separately, the assembly is designed for direct swap-out to minimize downtime.
Q: What is the typical service life of this 4 WG 190 transmission assembly?
A: With proper maintenance and clean hydraulic fluid, this unit typically delivers 8,000–12,000 operating hours in heavy construction applications. Regular inspection of the 4656301148: FIXING PLATE and cap screws is recommended during clutch service intervals.
Q: Does this assembly include the torque converter?
A: Yes, the complete unit includes the integrated torque converter and all clutch packs. You will only need to transfer external components like the 0636100801: CAP SCREW set from your old unit.
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Phone: +86 158 2286 3467 |
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