Four Seasons 66257 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66257

The Four Seasons Hose Assembly 66257 is designed specifically for Subaru vehicles, including the Baja, Legacy, and Outback models. This A/C refrigerant suction hose is engineered to maintain low-pressure system integrity and ensure efficient air conditioning performance.

• Constructed from durable aluminum and rubber materials
• Features a male o-ring fitting on one end and a P-nut fitting on the other
• Compatible with R134a refrigerant systems
• Includes necessary gaskets and fittings for installation
• Equipped with a service port sized M9x1.000 for low-side access
• O-rings included: one black [24150] and one green [24684]
• OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly line focuses on providing reliable hose assemblies for HVAC systems in vehicles. This product line emphasizes compatibility with original equipment specifications, offering components that include essential fittings and seals. The 66257 hose assembly is part of this line, designed to meet the demands of Subaru A/C systems without additional brackets or mufflers, simplifying installation and maintenance.

Product Description and Features

The Four Seasons 66257 A/C refrigerant suction hose is a critical component in the HVAC system of Subaru Baja, Legacy, and Outback models. Made from a combination of aluminum and rubber, it balances flexibility and durability to withstand low-pressure refrigerant flow. The hose assembly includes a male o-ring fitting on one end and a P-nut fitting on the suction end, ensuring a secure connection. It supports R134a refrigerant, the standard for many modern vehicles. The included gaskets and fittings facilitate a proper seal, preventing leaks and maintaining system efficiency. This hose assembly also features a service port on the low-pressure side, allowing for convenient system servicing without the need for additional components.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses in Subaru Baja, Legacy, and Outback
• Resolving refrigerant leaks caused by cracked or deteriorated hose materials
• Restoring proper low-pressure refrigerant flow for efficient air conditioning operation
• Eliminating issues related to faulty or missing O-rings and fittings
• Facilitating maintenance with an integrated service port for low-side system access

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66257, ensure the vehicle is compatible with R134a refrigerant systems. Verify that the male o-ring and P-nut fittings align correctly with the existing HVAC components. Use the included black and green O-rings to create a secure seal and prevent leaks. The hose assembly does not include a bracket or muffler, so confirm that existing mounting points are intact and secure. Proper torque specifications should be followed for fittings to avoid damage. The integrated service port allows for easy refrigerant charging and system diagnostics.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, ensuring it meets original equipment standards for fit and function. The product includes all necessary seals and fittings to maintain system integrity. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. For exact warranty terms, refer to the manufacturer’s documentation.