Overview
The ZF 4657.171.011 is a precision-engineered OEM genuine part designed specifically for the WG 190 Series transmission. This component plays a critical role in the hydraulic control circuit, ensuring proper oil flow and pressure regulation within the gearbox assembly. As a factory-original ZF component, the SKU 4657.171.011 guarantees exact fitment and long service life. When installed correctly, this part maintains the transmission’s shift quality and thermal management. For complete assembly integrity, this component is often paired with a 0631306792: CYLINDRICAL PIN to secure alignment, and a 0636100801: CAP SCREW for fastening. Additionally, the 4656301148: FIXING PLATE provides structural support, while the 4657301032: SCREEN SHEET filters contaminants from the hydraulic fluid.
Symptoms of Failure
When the ZF 4657.171.011 begins to wear, operators may notice specific performance issues. Look for these failure symptoms to diagnose problems early:
- Hydraulic oil leaks around the valve body area – Worn sealing surfaces cause fluid seepage, leading to low oil levels and potential gear slipping.
- Erratic or delayed gear engagement – A failing part disrupts pressure regulation, causing harsh or delayed shifts, especially under load.
- Overheating transmission fluid – Restricted oil flow due to internal wear increases friction and heat, reducing overall transmission efficiency.
- Whining or buzzing noises from the transmission – Cavitation or pressure fluctuations produce audible sounds, indicating the component is no longer functioning correctly.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4657.171.011 |
| OEM Reference | ZF 4657.171.011 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Weight | 0.45 kg (approx.) |
| Dimensions (L x W x H) | 85 mm x 40 mm x 25 mm |
| Compatible Series | WG 190, WG 180, WG 200 |
Compatibility
This OEM genuine part is primarily designed for the ZF WG 190 Series transmission. It is also compatible with the WG 180 and WG 200 models, as these share a common hydraulic architecture. Always verify your transmission model before ordering. For related assemblies, consider the 4657301033: SCREEN SHEET and the 0636100803: CAP SCREW for complete rebuild kits.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0631306792 | CYLINDRICAL PIN | Alignment and positioning of valve body components |
| 0636100801 | CAP SCREW | Secures housing and internal assemblies |
| 4656301148 | FIXING PLATE | Provides structural retention for hydraulic components |
| 4657301032 | SCREEN SHEET | Filters debris from transmission fluid |
| 4657301033 | SCREEN SHEET | Alternative fine-mesh filtration element |
| 0636100803 | CAP SCREW | High-torque fastener for critical joints |
| 0750301003 | OIL FEED.HOUSG. | Directs oil flow to lubrication points |
| 4656301023 | GASKET | Seals mating surfaces to prevent leaks |
| 0736300182 | TORX SCREW | Tamper-resistant fastener for valve body |
| 0736300233 | TORX SCREW | Reinforced screw for high-vibration areas |
Frequently Asked Questions
Q: How do I know if the ZF 4657.171.011 is the correct part for my WG190 transmission?
A: Verify your transmission model number on the nameplate. The 4657.171.011 is a direct OEM replacement for WG190, WG180, and WG200 series. Cross-reference your old part number to confirm.
Q: Can I replace this part without removing the entire transmission?
A: Yes, in most cases this component is accessible after draining the fluid and removing the valve body cover. However, we recommend consulting the ZF service manual for your specific model to avoid damage.
Q: What other parts should I replace at the same time?
A: For optimal performance, replace the gasket (4656301023) and both screen sheets (4657301032 and 4657301033). Inspect the cap screws (0636100801 and 0636100803) for wear, and replace if necessary.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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