Four Seasons 65543 A/C Refrigerant Discharge / Suction Hose Assembly

Overview of Four Seasons Hose Assembly 65543

The Four Seasons Hose Assembly 65543 is designed specifically for the Buick Envision HVAC system. This A/C refrigerant discharge and suction hose assembly ensures reliable performance by handling both high and low system pressures with durable aluminum and rubber construction.

• Compatible with Buick Envision models
• Constructed from aluminum and rubber for durability
• Designed for R134-a refrigerant systems
• Includes gaskets, fittings, and O-rings for a complete installation
• Features flange discharge end and P-nut suction end fittings
• Equipped with a muffler and manifold block for system efficiency
• OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on providing comprehensive HVAC hose and pipe solutions. This line includes assemblies that combine discharge and suction lines with necessary fittings and seals, designed to meet original equipment specifications. The 65543 hose assembly is part of this line, offering a complete replacement solution without the need for additional components such as brackets or service ports.

Detailed Product Description

This A/C refrigerant discharge and suction hose assembly is engineered for the Buick Envision's HVAC system, supporting R134-a refrigerant with both high and low pressure capabilities. The assembly features a flange-style discharge end and a P-nut fitting suction end, ensuring secure connections. Included are slimline washer O-rings (part numbers 24402 and 24404) in quantities of two each, along with gaskets and fittings to facilitate a proper seal and leak-free operation. The assembly also incorporates a muffler and manifold block to reduce noise and improve system performance. Notably, this part does not include a switch service port, bracket, or orifice tube, aligning with the original equipment design.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant hoses in Buick Envision vehicles
• Resolving refrigerant leaks caused by cracked or deteriorated hose materials
• Addressing poor A/C system performance due to compromised suction or discharge lines
• Eliminating noise issues with the integrated muffler component
• Ensuring proper refrigerant flow and pressure balance within the HVAC system

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 65543, ensure all included O-rings and gaskets are properly seated to prevent leaks. The flange discharge end and P-nut suction end fittings require correct torque specifications to maintain system integrity. Since this assembly does not include a bracket or service port, verify compatibility with the vehicle’s existing mounting hardware and service access points. It is recommended to evacuate and recharge the A/C system following installation to confirm proper operation.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, manufactured to meet or exceed original equipment standards. The inclusion of all necessary seals and fittings supports a reliable installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.