Four Seasons 66423 A/C Refrigerant Discharge Hose

Reliable A/C Refrigerant Discharge Hose for Infiniti and Nissan

The Four Seasons Hose Assembly part number 66423 is designed specifically for high-pressure A/C systems in Infiniti and Nissan vehicles. Engineered to meet original equipment specifications, this discharge hose ensures efficient refrigerant flow and system reliability for models like the Infiniti QX56, QX80, and Nissan Armada.

Key Features of Four Seasons Hose Assembly 66423

• Constructed from durable aluminum and rubber materials for long-lasting performance
• Compatible with R134a refrigerant systems
• Includes necessary fittings and two O-ring gaskets (part number 24069) for secure sealing
• Designed as a high-pressure discharge line without a service port or switch
• Features a P-nut fitting on the suction end for proper connection
• OE replacement part ensuring direct fit and function

Detailed Product Description

This Four Seasons Hose Assembly 66423 is a direct replacement discharge hose for the A/C system, built to handle high-pressure refrigerant flow in vehicles using R134a refrigerant. The combination of aluminum and rubber materials provides flexibility and durability under varying temperature and pressure conditions. The included fittings and two O-ring gaskets ensure a tight, leak-free connection. This hose assembly does not include a service port, switch, bracket, or muffler, focusing solely on the discharge line function. It is compatible with Infiniti QX56, QX80, and Nissan Armada models, making it a reliable choice for maintaining proper A/C system operation.

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line offers a range of hose and pipe solutions designed to meet or exceed OEM standards for automotive HVAC systems. This product line focuses on providing durable, precise-fit hose assemblies that support efficient refrigerant flow and system integrity. The 66423 discharge hose is part of this line, engineered to deliver consistent performance in high-pressure A/C applications for select Infiniti and Nissan vehicles.

Common Issues Addressed by This Discharge Hose

• Leaks or cracks in the original A/C refrigerant discharge hose
• Loss of refrigerant pressure causing reduced cooling efficiency
• Wear or damage from heat and vibration in the engine compartment
• Failure of OEM hoses leading to system contamination or failure
• Need for a direct OE replacement hose assembly for Infiniti QX56, QX80, or Nissan Armada

Installation Notes and Tips

• Ensure the system is fully depressurized before removal to avoid refrigerant release
• Inspect and replace O-ring gaskets included with the hose to prevent leaks
• Verify proper routing and secure fittings to avoid kinks or abrasion
• Use appropriate tools for P-nut fittings to avoid damage during installation
• Confirm compatibility with vehicle model and refrigerant type (R134a) before installation

Quality Assurance and Warranty

Four Seasons Hose Assembly 66423 is manufactured to meet original equipment standards, providing reliable performance and fitment. The product includes all necessary fittings and seals to ensure a secure installation. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship under normal use.