Four Seasons 66879 A/C Suction and Liquid Line Assembly with Internal Heat Exchanger

The Four Seasons 66879 is a pre-formed suction and liquid line assembly featuring an integrated internal heat exchanger (IHX) for improved air conditioning system efficiency. This dual-line assembly combines both the low-pressure suction line and high-pressure liquid line in a single unit with a heat exchange section that helps subcool refrigerant for better performance.

Key Features:

• Integrated internal heat exchanger design for enhanced A/C efficiency
• Pre-formed to OEM specifications for direct fit installation
• Combines suction and liquid lines in one assembly
• Manufactured to meet or exceed original equipment standards
• Includes necessary fittings and connections

This assembly is designed to replace worn or damaged A/C lines while maintaining the factory heat exchange functionality that improves system performance by subcooling the liquid refrigerant before it reaches the expansion valve. The pre-bent configuration ensures proper routing and eliminates the need for custom fabrication.