Overview
This ZF 4657.024.165 4 WG 190 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty off-highway applications. As the core power transfer module in the WG 190 series, this assembly integrates the torque converter, planetary gear sets, and hydraulic control system into a single, ready-to-install package. The SKU 4657.024.165 is the direct replacement for worn or failed transmissions in wheel loaders, graders, and industrial tractors, ensuring seamless restoration of original equipment performance. This complete unit eliminates the need for piecemeal repairs, providing a reliable solution for minimizing downtime in demanding work environments.
Symptoms of Failure
When the ZF 4657.024.165 assembly begins to fail, operators typically notice these specific issues:
- Erratic or delayed gear engagement: Hesitation when shifting from forward to reverse, or a noticeable lag before the machine moves, indicates internal hydraulic pressure loss or worn clutch packs within the assembly.
- Transmission overheating under light load: If the unit runs hot even during moderate operation, it often points to a failing torque converter or blocked internal oil passages, reducing cooling efficiency.
- Oil leaks at the housing joints: Visible fluid seepage around the main case seams or output shaft seal suggests gasket failure or housing distortion, often requiring replacement of the TRANSMISSION HOUSING to restore integrity.
- Whining or grinding noises during operation: Metallic sounds from the transmission area signal bearing wear or gear tooth damage, which can rapidly escalate into a complete mechanical failure if ignored.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.024.165 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 190 |
| Approximate Weight | 340 kg (750 lbs) |
| Housing Material | High-Grade Cast Iron |
| OEM Reference | ZF 4 WG 190 |
| Torque Converter Type | Single-Stage, 3-Element |
| Number of Speeds | 4 Forward / 4 Reverse |
Compatibility
This complete unit is engineered for the ZF WG 190 series of powershift transmissions. While the 4657.024.165 is specifically calibrated for the 4 WG 190 variant, it is mechanically compatible with the WG 180 and WG 200 series when used with the correct adapter plates and control valve adjustments. The assembly directly replaces units in models such as the 4 WG 180, 4 WG 190, and 4 WG 200, commonly found in construction and agricultural machinery. For a precise fit, always verify the original transmission housing configuration, as the HOUS.FRONT SECT and HOUSING REAR PART must match the vehicle’s mounting points.
Related Components
To complete your transmission rebuild or replacement, consider these essential parts that work directly with the 4657.024.165 assembly. The HOUSING REAR SECTION provides the structural base for the output shaft, while the front section ensures proper alignment of the pump drive.
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing for torque converter and pump |
| 4657201168 | HOUSING REAR PART | Rear casing for output shaft and clutch packs |
| 4657298101 | HOUSING REAR SECTION | Lower rear section for oil sump and filter mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing joint connections |
| 4656301148 | FIXING PLATE | Retaining plate for bearing preload |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil intake |
| 0636100803 | CAP SCREW | Bolt for securing the screen sheet assembly |
Frequently Asked Questions
Q: Is the 4657.024.165 a direct bolt-in replacement for my existing 4 WG 190 transmission?
A: Yes, this complete unit is designed as a direct OEM replacement for the ZF 4 WG 190 series. Ensure your vehicle’s mounting brackets and input shaft configuration match the original transmission before installation.
Q: What is the typical lifespan of this complete transmission assembly under normal operating conditions?
A: With proper maintenance and regular oil changes, the 4657.024.165 assembly can last between 8,000 to 12,000 hours in heavy-duty applications like wheel loaders and graders. Harsh environments or continuous high-load operation may reduce this interval.
Q: Can I use this assembly with a different ZF housing, such as the WG 180 series?
A: While the internal gear sets are similar, the housing bolt patterns differ. You will need to use the correct HOUS.FRONT SECT and HOUSING REAR PART to adapt the assembly to a WG 180 or WG 200 chassis.
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Phone: +86 158 2286 3467 |
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