Four Seasons 66758 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66758

The Four Seasons Hose Assembly 66758 is designed specifically for the Oldsmobile Aurora HVAC system. This A/C refrigerant discharge hose ensures reliable performance by using durable aluminum and rubber materials, compatible with R134-a refrigerant. It is an OE replacement part engineered to meet factory specifications.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134-a refrigerant systems
• Includes gasket and fittings for secure installation
• Features a switch service port with M10x1.250 size
• Designed without bracket and muffler for direct fitment
• Includes green O-ring [24606] and two slimline washers [24402]
• Equipped with a P-nut fitting suction end type

Detailed Product Description

This Four Seasons Hose Assembly from the Hose Assembly product line is a direct OE replacement discharge line for the A/C system in the Oldsmobile Aurora. The combination of aluminum and rubber materials provides a balance of strength and flexibility, essential for handling refrigerant flow under pressure. The hose assembly is designed to work with R134-a refrigerant, the standard for many modern automotive A/C systems.

The assembly includes all necessary fittings and a gasket to ensure a leak-free connection. It features a switch service port sized M10x1.250, allowing for easy integration with the vehicle’s A/C pressure switch, although the switch itself is not included. The hose does not come with a bracket or muffler, which aligns with the original equipment design for the Aurora. The included green O-ring and slimline washers help maintain a secure seal at connection points.

Applications and Common Issues Addressed

• Replacement of worn or cracked A/C refrigerant discharge hoses
• Resolving refrigerant leaks in the discharge line of Oldsmobile Aurora A/C systems
• Restoring proper refrigerant flow and pressure for efficient cooling
• Fixing issues related to damaged or missing fittings and seals
• Addressing switch port connection problems without replacing the entire A/C system

Installation Notes and Tips

• Ensure compatibility with Oldsmobile Aurora models before installation
• Use the included gasket and O-rings to prevent refrigerant leaks
• Do not reuse old seals or fittings to maintain system integrity
• Check the switch port size (M10x1.250) for proper switch compatibility
• Handle the aluminum and rubber hose carefully to avoid kinks or damage during installation

Quality Assurance and Warranty

Four Seasons manufactures this hose assembly to meet or exceed original equipment standards, ensuring reliable performance in the Oldsmobile Aurora HVAC system. The part number 66758 is an exact OE replacement, providing confidence in fit and function. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship.