Four Seasons 65665 A/C Refrigerant Liquid Hose

Overview of Four Seasons Hose Assembly 65665

The Four Seasons Hose Assembly 65665 is designed for high-pressure A/C refrigerant liquid line applications. Engineered with durable aluminum and rubber materials, this hose assembly is compatible with various General Motors vehicles, including Cadillac Escalade, Chevrolet Silverado, and GMC Yukon models.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134-a refrigerant systems operating under high pressure
• Includes gasket and fittings for secure installation
• Female liquid line with M20 x 1.5 thread size
• Equipped with two green O-rings (part number 24649) for reliable sealing
• OEM replacement part with orifice tube included
• Designed without a switch service port or bracket

Detailed Product Description

This Four Seasons Hose Assembly from the Hose Assembly product line is a direct OEM replacement designed to meet the specifications of original equipment. It features a liquid line hose assembly without a service port switch, making it suitable for high-pressure R134-a refrigerant systems. The hose assembly includes fittings and gaskets to ensure a leak-free connection. The female liquid line end with M20 x 1.5 threading and two green O-rings provide a secure and tight seal, essential for maintaining system integrity. This part is compatible with a range of GM vehicles such as the Cadillac Escalade, Chevrolet C1500, Silverado, and GMC Yukon, among others.

Applications and Common Issues Addressed

• Replacement of worn or damaged A/C refrigerant liquid hoses
• Resolving refrigerant leaks due to failed seals or fittings
• Restoring proper refrigerant flow in high-pressure A/C systems
• Fixing issues related to hose assembly degradation in Cadillac, Chevrolet, and GMC models
• Ensuring compatibility with R134-a refrigerant systems in select GM trucks and SUVs

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 65665, ensure the system is fully depressurized and evacuated before removal of the old hose. Verify the correct orientation of the female liquid line and confirm the M20 x 1.5 thread size matches the vehicle’s fittings. Replace the included green O-rings to maintain a proper seal and prevent leaks. Since this assembly does not include a bracket or service port switch, confirm mounting points and service port requirements before installation.

Quality Assurance and Warranty

Four Seasons manufactures this hose assembly to meet or exceed OEM standards, ensuring reliable performance in high-pressure A/C systems. The part number 65665 is an exact replacement for original equipment, providing confidence in fit and function. This product includes all necessary gaskets and fittings for installation. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.