Four Seasons 66403 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66403

The Four Seasons Hose Assembly 66403 is designed specifically for Nissan Altima models requiring a reliable A/C refrigerant suction hose. Engineered with durable aluminum and rubber materials, this hose assembly ensures efficient low-pressure refrigerant flow for R134-a systems.

• Constructed from aluminum and rubber for durability and flexibility
• Equipped with P-nut fittings on both ends for secure connections
• Includes green O-rings (part number 24684) for proper sealing
• Compatible with R134-a refrigerant systems at low pressure
• Includes service port with 13 mm size for maintenance access
• OE replacement part designed to meet Nissan Altima specifications
• Fittings and gasket included for complete installation

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing high-quality hose assemblies tailored for HVAC systems in vehicles. This product line emphasizes compatibility and durability, offering components like the 66403 suction hose that integrate seamlessly with factory systems. The assemblies are designed to maintain system integrity without additional brackets or mufflers, simplifying installation and service.

Detailed Product Description

The Four Seasons 66403 A/C refrigerant suction hose is a critical component for the Nissan Altima's HVAC system. It features P-nut fittings on both ends, ensuring a secure and leak-free connection to the low-pressure side of the air conditioning system. The hose is constructed from a combination of aluminum and rubber, providing both strength and flexibility to withstand the demands of refrigerant flow. Included with the hose are two green O-rings (part number 24684) and necessary fittings, which help maintain a tight seal and prevent refrigerant leaks. This hose assembly is designed without a muffler or bracket, streamlining the installation process while maintaining system performance. The service port included allows for easy access during maintenance without the need for additional components.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses on Nissan Altima
• Resolving refrigerant leaks caused by degraded seals or fittings
• Restoring proper low-pressure refrigerant flow in R134-a systems
• Eliminating connection failures due to faulty or corroded fittings
• Improving HVAC system reliability and efficiency

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66403, ensure that the P-nut fittings are tightened to manufacturer torque specifications to prevent leaks. Verify that the included green O-rings are properly seated to maintain a secure seal. Since this assembly does not include a bracket or muffler, confirm that the hose is routed correctly to avoid contact with moving parts or heat sources. The service port allows for convenient system charging and diagnostics without additional modifications.

Quality Assurance and Warranty

This Four Seasons hose assembly is an OE replacement part, designed to meet or exceed original equipment standards for the Nissan Altima. It includes all necessary fittings and seals to ensure a reliable installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.