Four Seasons 66648 A/C Suction and Liquid Line Hose Assembly

Overview of Four Seasons Hose Assembly 66648

The Four Seasons Hose Assembly 66648 is designed for reliable HVAC performance in select Cadillac, Chevrolet, and GMC vehicles. This A/C suction and liquid line hose assembly supports R1234yf refrigerant systems, ensuring compatibility with modern automotive air conditioning setups.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Includes necessary gaskets, seals, and fittings for installation
• Compatible with high and low pressure A/C systems
• Features a service port on the high-pressure side without a switch port
• Includes manifold and slimline washer O-rings for leak prevention
• OE replacement part designed for Cadillac Acadia, Acadia Limited, Chevrolet Blazer, and GMC XT5

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies that integrate both suction and liquid lines with essential components such as manifolds and service ports. This line is engineered to meet OEM specifications, offering a direct replacement solution that simplifies HVAC repairs and maintenance for compatible vehicles.

Detailed Product Description

This hose assembly combines aluminum and rubber materials to balance durability and flexibility, suitable for handling the demands of automotive air conditioning systems using R1234yf refrigerant. Both ends feature P-nut fittings, ensuring a secure and leak-resistant connection to the vehicle's A/C system. The assembly supports both high and low pressure sides, with a service port included on the high-pressure side to facilitate system servicing. The package includes all necessary fittings, gaskets, and slimline washer O-rings (part numbers 24404 and 24402) to ensure a proper seal and prevent refrigerant leaks. This part is an OE replacement, designed specifically for Cadillac Acadia, Acadia Limited, Chevrolet Blazer, and GMC XT5 models, making it a precise fit for these vehicles.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C suction and liquid line hoses
• Resolving refrigerant leaks caused by degraded seals or fittings
• Restoring proper refrigerant flow in R1234yf systems
• Fixing pressure inconsistencies in high and low side A/C lines
• Upgrading OEM components with a direct-fit hose assembly

Installation Notes and Tips

• Ensure system is fully evacuated and depressurized before removal
• Verify compatibility with vehicle make and model prior to installation
• Use included gaskets and O-rings to maintain proper sealing
• Inspect fittings for damage and replace if necessary
• Follow manufacturer torque specifications for P-nut fittings

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66648 is manufactured to meet OEM standards for fit, form, and function. It is an exact replacement part designed to maintain the integrity of the vehicle’s HVAC system. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.