Four Seasons 66674 A/C Refrigerant Discharge Hose

Overview of Four Seasons Hose Assembly 66674

The Four Seasons Hose Assembly 66674 is designed specifically for Mazda 3 and Mazda 3 Sport models. This A/C refrigerant discharge hose is engineered to handle high-pressure R134a refrigerant systems, ensuring reliable performance in your vehicle's HVAC system.

• Constructed from durable aluminum and rubber materials
• Compatible with R134a refrigerant type
• Includes gasket, fittings, and green O-rings for secure sealing
• Equipped with a high-pressure discharge line and muffler
• Features a 16 mm high side service port with one service port included
• Designed without a switch or bracket for direct replacement
• OEM replacement part ensuring proper fit and function

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 aluminum and rubber components to withstand high system pressures and include necessary fittings and seals. The 66674 hose assembly is part of this line, offering a direct OEM replacement solution for Mazda 3 and 3 Sport vehicles without requiring additional modifications.

Product Description and Features

This A/C refrigerant discharge hose is designed to maintain the integrity of your vehicle's high-pressure air conditioning system. The combination of aluminum and rubber materials provides durability and flexibility, while the included green O-rings and gasket ensure a tight, leak-free connection. The hose assembly includes a muffler to reduce noise and vibration during operation. It features a P-nut fitting suction end and a 16 mm high side service port for easy maintenance and service access. The part number 66674 corresponds to a direct OEM replacement, making it suitable for Mazda 3 and Mazda 3 Sport models equipped with R134a refrigerant systems.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge hoses
• Resolving refrigerant leaks in the high-pressure discharge line
• Eliminating noise caused by failing mufflers in the hose assembly
• Restoring proper refrigerant flow and system pressure
• Ensuring compatibility with Mazda 3 and 3 Sport R134a HVAC systems

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66674, ensure the vehicle is compatible with R134a refrigerant systems. Use the included fittings, gasket, and O-rings to achieve a secure, leak-free connection. The hose assembly does not include a bracket or switch, so verify existing mounting points and switch components before installation. Properly torque fittings to manufacturer specifications and check for leaks after installation. The 16 mm high side service port allows for convenient system servicing.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OEM replacement part, meeting or exceeding original equipment standards for fit and function. The inclusion of all necessary seals and fittings supports reliable, long-lasting performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship.