The YNF17191 4475690 Expansion Valve is a high-quality replacement component for excavator air conditioning systems. It regulates the flow of refrigerant into the evaporator, ensuring optimal cooling efficiency and stable operation. Built with precision engineering and durable materials, this valve withstands high-pressure conditions and temperature variations, delivering reliable long-term performance.

• Direct replacement for OEM 4475690

• Precisely controls refrigerant flow for efficient cooling

• Durable construction for long service life

• Resistant to high pressure, vibration, and temperature fluctuations

• Ensures stable operation of the air conditioning system

• OEM-compatible design for easy installation

• Maintains optimal cabin comfort under heavy-duty conditions

• Low maintenance requirement

Used in excavator air conditioning systems to regulate refrigerant flow into the evaporator, maintaining stable cooling performance and comfortable cabin conditions.

We provide installation guidance, technical support, compatibility verification, and troubleshooting assistance to ensure correct operation.

Each expansion valve is securely packed with protective padding and shipped with reliable carriers including full tracking information.

1. What is the function of the YNF17191 expansion valve?
It regulates refrigerant flow in the air conditioning system to ensure stable cooling.

2. Which machines is this valve compatible with?
It replaces OEM 4475690. Confirm compatibility with your excavator model.

3. Is it a direct replacement for the original part?
Yes, it matches OEM specifications for performance and installation.

4. How can I tell if the expansion valve needs replacement?
Symptoms include poor cooling, fluctuating cabin temperature, ice formation in the evaporator, or system pressure issues.

5. Is installation difficult?
No. It is designed for easy installation with OEM-compatible fittings.

6. How durable is this expansion valve?
Built with high-quality materials, it withstands high pressure, temperature variations, and vibration.

7. Will replacing this valve improve air conditioning performance?
Yes. A properly functioning expansion valve ensures stable refrigerant flow and efficient cooling.

8. Can it be used for other excavator models?
Only if they use OEM 4475690. Compatibility should be verified before installation.