Four Seasons 66419 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66419

The Four Seasons Hose Assembly 66419 is designed for high-pressure A/C refrigerant discharge applications in select Nissan and INFINITI vehicles. Engineered with durable aluminum and rubber materials, this hose assembly ensures reliable performance for your vehicle's HVAC system.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant systems
• Includes gasket and fittings for secure connections
• Equipped with a bracket for proper mounting
• Designed as a high-pressure discharge line without a muffler or service port
• O-rings included: one green o-ring [24661] and two green o-rings [24608]
• Features a male springlock suction end type
• OE replacement part for Nissan and INFINITI models

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering reliable hose and pipe solutions for automotive HVAC systems. This line includes assemblies designed to meet or exceed original equipment specifications, ensuring proper fit and function. The 66419 hose assembly is part of this line, providing a direct OE replacement for specific Nissan and INFINITI models, maintaining system integrity and performance.

Product Description and Specifications

The Four Seasons 66419 A/C Refrigerant Discharge Hose is engineered to handle high system pressures typical of modern automotive air conditioning systems using R134a refrigerant. Its aluminum and rubber construction balances strength and flexibility, reducing the risk of leaks or damage under thermal expansion and vibration. The included gasket and fittings facilitate a secure, leak-free installation. This discharge line does not include a muffler or service port but comes with a mounting bracket to ensure proper positioning within the HVAC system. The male springlock suction end type allows for a reliable connection to the vehicle's A/C components. This hose assembly is an OE replacement part compatible with Nissan 370Z, EX35, EX37, G35, G37, and INFINITI models, ensuring a precise fit and function.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge hoses
• Resolution of refrigerant leaks due to cracked or deteriorated hoses
• Restoration of proper high-pressure refrigerant flow in the HVAC system
• Elimination of system pressure loss affecting cooling performance
• Correction of mounting issues with included bracket for secure hose placement

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66419, ensure the system is fully depressurized and evacuated before removal of the old hose. Verify that the included green O-rings ([24661] and [24608]) are properly seated to prevent leaks. The bracket should be securely fastened to maintain hose positioning and avoid vibration damage. Since this assembly does not include a service port or muffler, confirm compatibility with your vehicle's existing components. Proper torque specifications should be followed for fittings to ensure a leak-free seal.

Quality Assurance and Warranty

Four Seasons manufactures the 66419 hose assembly to meet or exceed original equipment standards, providing reliable performance in high-pressure A/C systems. This part is an OE replacement, ensuring compatibility and durability. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.