Four Seasons 66530 A/C Refrigerant Suction & Liquid Line Heat Exchange Hose Assembly

The Four Seasons 66530 is a precision-engineered suction and liquid line hose assembly with internal heat exchange technology designed for automotive air conditioning systems. This dual-line assembly combines both the low-pressure suction line and high-pressure liquid line in a single integrated unit, utilizing internal heat exchange to improve A/C system efficiency and performance.

Key Features:

• Internal heat exchanger design subcools refrigerant in the liquid line while preventing suction line freeze-up
• Pre-assembled construction with factory-installed fittings for reliable connections
• Engineered to meet OEM specifications for proper fit and function
• Durable rubber and reinforced construction designed to withstand automotive underhood temperatures and pressures
• Direct-fit replacement for original equipment hose assembly

This hose assembly is a critical component in modern A/C systems, transferring refrigerant between the evaporator, compressor, and condenser while optimizing system efficiency through heat exchange. Professional installation and proper evacuation and charging procedures are recommended for optimal performance.