Four Seasons 66964 A/C Suction Liquid Line Internal Heat Exchange Hose Assembly

The Four Seasons 66964 is a suction and liquid line internal heat exchange hose assembly designed for automotive air conditioning systems. This dual-function assembly combines both the high-pressure liquid line and low-pressure suction line into a single integrated unit with internal heat exchange capability, improving A/C system efficiency by subcooling the refrigerant before it enters the expansion valve.

Key Features:

• Internal heat exchanger design improves system efficiency and cooling performance
• Combines suction and liquid lines in one assembly for simplified installation
• Engineered and tested to provide years of trouble-free operation
• Manufactured to OE specifications for proper fit and function
• Includes necessary fittings and O-rings for complete installation
• Backed by over 50 years of mobile A/C experience from Four Seasons

Four Seasons is the largest aftermarket automotive temperature control parts supplier in the industry. As part of Standard Motor Products, Four Seasons manufactures and distributes a comprehensive line of replacement mobile climate control products that meet rigorous quality standards. Each component is validated and inspected before leaving the facility to ensure reliable performance and proper fitment.