Four Seasons 66004 A/C Refrigerant Discharge Hose

Reliable A/C Refrigerant Discharge Hose for GM Vehicles

The Four Seasons Hose Assembly 66004 is designed to provide a dependable replacement for the A/C refrigerant discharge line in select Cadillac, Chevrolet, and GMC models. Engineered for vehicles using R134a refrigerant, this hose assembly ensures proper function and durability in your vehicle's HVAC system.

• Compatible with Cadillac Escalade, Chevrolet Silverado 1500, Sierra 1500, Tahoe, and GMC Yukon
• OEM replacement discharge line for R134a refrigerant systems
• Includes gasket and fittings for secure installation
• Features a P-nut fitting suction end and a switch service port
• Does not include bracket, muffler, or switch

Four Seasons Hose Assembly Product Line Overview

The Four Seasons Hose Assembly line focuses on providing precise replacement hoses and pipes for automotive HVAC systems. This product line emphasizes compatibility with original equipment specifications, ensuring that each hose assembly, including part number 66004, meets the necessary standards for fit and function in specific vehicle models.

Product Details and Specifications

This A/C refrigerant discharge hose is designed specifically for vehicles equipped with R134a refrigerant. The hose assembly includes essential components such as gaskets and fittings to facilitate a secure and leak-free connection. It features a P-nut fitting on the suction end and comes with a switch service port, although the switch itself is not included. The assembly does not include a bracket or muffler, aligning with original equipment design. Part number 66004 is an exact OEM replacement, ensuring compatibility and reliable performance in Cadillac Escalade, Chevrolet Silverado 1500, Sierra 1500, Tahoe, and GMC Yukon models.

Common Applications and Issues Addressed

• Replacement of worn or leaking A/C refrigerant discharge hoses
• Restoring proper refrigerant flow in R134a systems
• Resolving A/C system pressure loss due to damaged discharge lines
• Eliminating refrigerant leaks caused by cracked or deteriorated hoses
• Maintaining HVAC system efficiency in Cadillac, Chevrolet, and GMC vehicles

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66004, ensure the vehicle is compatible with R134a refrigerant systems and matches the specified models. Use the included gasket and fittings to secure connections and prevent leaks. Note that the assembly does not include a bracket or muffler, so reuse existing components if applicable. The switch service port is present, but the switch itself must be sourced separately if required. Proper torque specifications should be followed to avoid damage to fittings.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed OEM standards for durability and performance. Part number 66004 undergoes quality checks to ensure fitment accuracy and material integrity. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in materials and workmanship, supporting long-term reliability in your vehicle's HVAC system.