Four Seasons 66637 A/C Suction and Liquid Line Hose Assembly

Overview of Four Seasons Hose Assembly 66637

The Four Seasons Hose Assembly 66637 is designed specifically for Buick LaCrosse and Chevrolet Malibu models. This A/C suction and liquid line hose assembly ensures reliable performance in your vehicle's HVAC system by handling both high and low pressure refrigerant flow.

• Constructed from durable aluminum and rubber materials
• Includes flange and P-nut fitting ends for secure connections
• Compatible with R1234yf refrigerant type
• Equipped with two service ports featuring R1234yf quick disconnects
• Comes with included gaskets, seals, and fittings for installation
• O-rings included for slim line sealing washers
• Designed as an original equipment replacement part
• Features a manifold and service ports without brackets or mufflers

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies for automotive HVAC systems. These assemblies combine suction and liquid line hoses with integrated components such as manifolds and service ports to facilitate efficient refrigerant flow and system maintenance. The 66637 part number is part of this line, offering a direct replacement solution for Buick LaCrosse and Chevrolet Malibu vehicles using R1234yf refrigerant.

Detailed Product Description

This hose assembly is engineered with a combination of aluminum and rubber to withstand the demands of high and low pressure within the A/C system. The assembly includes a flange on one end and a P-nut fitting on the other, ensuring compatibility with factory connections. It supports R1234yf refrigerant, which is standard in newer vehicle models. The inclusion of two service ports—one on the high side and one on the low side—allows for convenient system servicing and diagnostics. The package also contains all necessary fittings, gaskets, and O-rings (part numbers 24401 and 24404) to ensure a proper seal and leak-free operation. This assembly does not include a bracket or muffler but does feature a manifold to optimize refrigerant flow.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C suction and liquid line hoses
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Upgrading to R1234yf compatible components in Buick LaCrosse and Chevrolet Malibu
• Restoring proper system pressure and refrigerant flow
• Facilitating maintenance with included service ports for quick disconnect

Installation Notes and Tips

• Ensure compatibility with Buick LaCrosse and Chevrolet Malibu models before installation
• Use included gaskets and O-rings to prevent leaks and maintain system integrity
• Check that service ports are accessible for future maintenance
• Verify that fittings are securely tightened to manufacturer torque specifications
• Inspect the entire HVAC system for additional wear or damage during replacement

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66637 is manufactured to meet original equipment standards, providing a reliable replacement for Buick LaCrosse and Chevrolet Malibu HVAC systems. The part includes all necessary seals and fittings to ensure proper installation and function. While specific warranty details are not provided, Four Seasons products typically adhere to industry quality controls and are designed for durability and performance in automotive applications.