Four Seasons 55721 A/C Liquid Line with Orifice Tube

Overview of Four Seasons Hose Assembly 55721

The Four Seasons Hose Assembly 55721 is designed specifically for Ford Mustang models requiring a reliable A/C liquid line with an orifice tube. This hose assembly supports R134a refrigerant systems and includes essential fittings and seals for a secure installation.

• Compatible with Ford Mustang vehicles
• Includes captured orifice tube for precise refrigerant flow
• Equipped with green o-rings and spring seals for leak prevention
• Fittings included, no bracket or service port
• Designed for R134a refrigerant type

Detailed Product Features and Specifications

The Four Seasons Hose Assembly 55721 belongs to the Hose Assembly product line, which focuses on delivering complete hose solutions for automotive HVAC systems. This particular liquid line hose assembly features a 0.375-inch diameter and comes with a captured orifice tube to regulate refrigerant flow efficiently. It is engineered without a service port or bracket, streamlining installation in compatible Ford Mustang models. The assembly includes multiple green o-rings (part numbers 24666, 24668, and 24131) and a spring seal (part number 24216) to ensure a tight, leak-free connection. The suction end is designed with a male springlock fitting, facilitating secure attachment to the vehicle’s A/C system.

Applications and Common Issues Addressed

• Replacement of worn or damaged A/C liquid lines in Ford Mustang vehicles
• Resolution of refrigerant leaks caused by faulty or deteriorated seals
• Improvement of A/C system efficiency by restoring proper refrigerant flow
• Repair of orifice tube-related blockages or failures
• Upgrade to OEM-equivalent parts for reliable HVAC performance

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 55721, ensure the system is fully evacuated and depressurized before removal of the old liquid line. Verify that all included o-rings are properly seated to prevent leaks. Since this assembly does not include a service port or bracket, confirm compatibility with your vehicle’s existing mounting points and service access. Use appropriate tools to secure the male springlock fitting and avoid overtightening to maintain seal integrity.

Quality Assurance and Warranty

This Four Seasons hose assembly is an OEM replacement part, meeting original equipment specifications for fit and function. It includes all necessary fittings and seals to ensure a professional-grade installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.