Four Seasons 56409 A/C Refrigerant Discharge / Suction Hose Assembly

Overview of Four Seasons Hose Assembly 56409

The Four Seasons Hose Assembly 56409 is designed specifically for Chevrolet and GMC trucks, including the C1500, Sierra 1500, and Silverado 1500 models. This A/C refrigerant discharge and suction hose assembly ensures reliable performance with durable aluminum and rubber construction, compatible with R134a refrigerant systems.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant type
• Includes sealing washers and O-rings for secure connections
• Features P-nut fittings on both discharge and suction ends
• Equipped with a switch service port but does not include the switch
• Manifold included; bracket and muffler not included
• O.E. replacement part designed for direct fit

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing high-quality HVAC hoses and pipes engineered for specific vehicle applications. This line emphasizes precise fitment and reliable sealing components, such as included O-rings and gaskets, to maintain system integrity. The 56409 hose assembly is part of this line, offering a direct replacement solution for Chevrolet and GMC trucks requiring both discharge and suction line functionality.

Detailed Product Description

The Four Seasons 56409 hose assembly is a dual-function A/C refrigerant line designed to handle both discharge and suction duties within the HVAC system. It features P-nut fittings on both ends, ensuring a secure and leak-resistant connection. The assembly includes multiple O-rings and sealing washers ([24348], [24404], [24402], and [24675]) to maintain system pressure and prevent refrigerant leaks. While the assembly comes with a switch service port, the switch itself is not included, and no bracket or muffler is part of this kit. This part is an original equipment replacement, engineered to meet the specifications of Chevrolet C1500, GMC Sierra 1500, and Silverado 1500 models using R134a refrigerant.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant discharge and suction hoses
• Resolving refrigerant leaks caused by cracked or deteriorated hose materials
• Fixing poor A/C system performance due to faulty hose connections
• Addressing issues with pressure loss in the HVAC system
• Upgrading to an O.E. replacement hose assembly for improved reliability

Installation Notes and Tips

When installing the Four Seasons 56409 hose assembly, ensure all included O-rings and sealing washers are properly seated to prevent leaks. The P-nut fittings require careful tightening to manufacturer torque specifications to avoid damage. Note that the switch service port is included, but the switch itself must be sourced separately if needed. This assembly does not include a bracket or muffler, so verify existing mounting hardware compatibility before installation.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an original equipment replacement part, designed to meet or exceed factory specifications for Chevrolet and GMC trucks. The inclusion of multiple O-rings and sealing washers supports long-term durability and leak prevention. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.