Four Seasons 66640 A/C Suction and Liquid Line Hose Assembly

Overview of Four Seasons Hose Assembly 66640

The Four Seasons Hose Assembly 66640 is designed specifically for Chevrolet Impala and Impala Limited 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
• Features dual o-ring on one end and P-nut fitting on the other
• Compatible with R134a refrigerant systems
• Includes gasket, fittings, and service ports with switch port
• Designed for both high and low pressure A/C system operation

Detailed Product Description

The Four Seasons Hose Assembly 66640 belongs to the Hose Assembly product line, which focuses on providing complete hose solutions for automotive HVAC systems. This assembly combines aluminum and rubber components to offer flexibility and durability under varying temperature and pressure conditions. It includes a dual o-ring fitting on one end and a P-nut fitting on the other, ensuring a secure and leak-free connection. The hose assembly supports R134a refrigerant and is engineered to handle both high and low pressure sides of the A/C system. Additionally, it comes with essential gaskets, fittings, and a switch service port (M10x1.250) to facilitate system diagnostics and maintenance. This part is an original equipment replacement, designed without a bracket or muffler but includes a manifold for proper integration.

Compatible Vehicles and Applications

• Chevrolet Impala
• Chevrolet Impala Limited

This hose assembly is specifically compatible with Chevrolet Impala and Impala Limited models, making it a suitable replacement for the factory-installed A/C suction and liquid line hoses. It addresses issues related to refrigerant leaks, pressure inconsistencies, and faulty service ports in these vehicles.

Common Issues Addressed by This Hose Assembly

• Refrigerant leaks due to worn or damaged hoses
• Loss of A/C system pressure affecting cooling performance
• Faulty or missing service ports hindering system diagnostics
• Corrosion or damage to fittings causing connection failures
• Incompatibility with R134a refrigerant systems

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66640, ensure the vehicle’s A/C system is fully evacuated and depressurized. Verify that the dual o-ring and P-nut fittings are properly seated and tightened to manufacturer specifications to prevent leaks. The included gaskets and fittings should be replaced as part of the installation to maintain system integrity. Use the switch service port for accurate pressure readings during system recharge and diagnostics. This assembly does not include a bracket or muffler, so verify existing mounting points and supports on the vehicle.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an original equipment replacement part, meeting or exceeding OEM standards for fit, form, and function. The product includes all necessary seals and fittings to ensure a reliable installation. Warranty coverage details should be confirmed with the product documentation or manufacturer, as it may vary by region or distributor.