Four Seasons 56424 A/C Refrigerant Discharge Hose

Reliable A/C Refrigerant Discharge Hose for Chevrolet and GMC

The Four Seasons Hose Assembly 56424 is designed to provide a dependable replacement for the A/C refrigerant discharge line in select Chevrolet and GMC trucks. Engineered for vehicles using R134a refrigerant, this hose assembly ensures proper fit and function for models like the Silverado 2500 HD and Sierra 3500.

• Compatible with Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500
• OEM replacement discharge line for R134a refrigerant systems
• Includes gasket, fittings, and green O-ring for secure sealing
• Equipped with a switch service port (M10x1.250) but no switch included
• Features a P-nut fitting on the suction end for proper connection
• Does not include bracket or muffler, designed for direct replacement

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on delivering precise HVAC hose replacements that meet original equipment specifications. This product line includes hose assemblies engineered to maintain system integrity and performance, such as the 56424 A/C refrigerant discharge hose designed specifically for heavy-duty Chevrolet and GMC trucks. These assemblies come with necessary seals and fittings to simplify installation and ensure a reliable connection.

Product Details and Specifications

The Four Seasons 56424 hose assembly is a direct OE replacement designed for vehicles using R134a refrigerant. It includes a discharge line component type with a switch service port sized M10x1.250, although the switch itself is not included. The assembly comes with one green O-ring (part number 24606) and two slimline washers (part number 24402) to ensure a tight seal. Fittings are included for a secure connection, and the suction end features a P-nut fitting. This hose assembly does not include a bracket or muffler, aligning with the original equipment design.

Common Applications and Issues Addressed

• Replacement of leaking or damaged A/C refrigerant discharge hoses
• Restoring proper refrigerant flow in R134a systems on Silverado 2500 HD and Sierra 3500
• Resolving A/C system pressure loss due to worn or cracked discharge lines
• Eliminating refrigerant leaks caused by failed seals or fittings
• Upgrading worn OEM hoses to maintain HVAC system efficiency

Installation Notes and Tips

When installing the Four Seasons 56424 hose assembly, ensure the vehicle is compatible with R134a refrigerant systems and the specified Chevrolet or GMC models. Use the included gasket, O-rings, and fittings to achieve a proper seal. The switch service port is present but does not include the switch, so verify switch compatibility if replacement is needed. Properly torque fittings and inspect connections for leaks after installation.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed OEM standards for durability and performance. The 56424 hose assembly is an exact replacement part designed to maintain system integrity. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in materials and workmanship. Consult product documentation or manufacturer resources for warranty terms.