Four Seasons 56578 A/C Refrigerant Liquid Hose

Overview of Four Seasons Hose Assembly 56578

The Four Seasons Hose Assembly 56578 is designed specifically for high-pressure A/C refrigerant liquid line applications. Engineered for Cadillac and Chevrolet models including the Corvette and XLR, this hose assembly ensures reliable performance in your vehicle's HVAC system.

• Compatible with R134a refrigerant systems
• Includes gasket and O-rings for secure sealing
• Equipped with a high side service port and switch port
• Features a bracket for stable mounting
• Original equipment replacement with orifice tube included
• Service port size: 10mm with P-nut fitting suction end

Detailed Product Features and Specifications

This A/C refrigerant liquid hose from Four Seasons is part of the Hose Assembly product line, which focuses on delivering complete hose assemblies tailored for HVAC systems. The 56578 model supports high-pressure R134a refrigerant, making it suitable for modern automotive air conditioning systems. It comes with essential components such as a slimline washer (O-ring 24402) and two green round O-rings (23678) to ensure leak-free connections. The inclusion of a service port and switch service port allows for convenient maintenance and diagnostics. Additionally, the hose assembly includes a bracket for secure installation and an orifice tube to regulate refrigerant flow, matching original equipment specifications for Cadillac Corvette and Chevrolet XLR vehicles.

Applications and Common Issues Addressed

• Replacement of worn or damaged A/C liquid line hoses in Cadillac Corvette and Chevrolet XLR
• Resolving refrigerant leaks caused by degraded seals or fittings
• Restoring proper refrigerant flow and system pressure in high-pressure A/C systems
• Facilitating maintenance with integrated service ports
• Eliminating issues related to faulty orifice tubes affecting cooling efficiency

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 56578, ensure the system is fully evacuated and depressurized before removal of the old hose. Verify that all included O-rings and gaskets are properly seated to prevent leaks. The bracket should be securely fastened to maintain hose stability and prevent vibration damage. Use the 10mm service port for system charging and diagnostics. This hose assembly is designed as a direct OE replacement, so no modifications should be necessary for Cadillac Corvette and Chevrolet XLR models.

Quality Assurance and Warranty

Four Seasons manufactures the 56578 hose assembly to meet or exceed original equipment standards. The product includes all necessary seals and fittings to ensure a reliable, leak-free installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. For exact warranty terms, consult the product documentation or manufacturer.