Four Seasons 66937 A/C Refrigerant Suction Hose

Acura RDX A/C Suction Hose Assembly

Four Seasons 66937 is an A/C refrigerant suction hose assembly built for 2019-2023 Acura RDX applications. It uses aluminum and rubber construction, includes the required gasket or seal, and is specified for R1234YF refrigerant systems.

Four Seasons hose assemblies are part of the brand’s Hose Assembly line, focused on replacement HVAC plumbing for mobile air conditioning systems. This part number, 66937, is a direct-fit style solution for the suction line on the Acura RDX.

Key Features

• Part number 66937 for Acura RDX HVAC service
• A/C refrigerant suction hose assembly for the suction line
• Aluminum / rubber construction for routing and flexibility
• Includes gasket or seal
• Configured for R1234YF refrigerant systems
• No service port included and no switch service port
• Without muffler

Detailed Product Information

This Four Seasons 66937 suction hose assembly is engineered for the A/C refrigerant circuit on 2019-2023 Acura RDX models. It is built to replace the suction line with the correct hose assembly layout, using aluminum and rubber materials to match the demands of underhood HVAC routing. The included seal helps support a proper connection at installation, while the absence of a service port and muffler matches the listed configuration.

This part cross-references Honda/Acura OE-style numbers such as 80311TJBA01 and A83617 for the same application. If you are searching for an Acura RDX A/C suction hose assembly, Four Seasons 66937 is the cataloged replacement to verify against your vehicle’s refrigerant system and line configuration.

Common Problems This Part Addresses

• Damaged or leaking A/C suction hose
• Cracked or deteriorated hose material
• Loss of refrigerant from the suction line
• Poor A/C performance caused by a compromised hose assembly
• Incorrect replacement line configuration during HVAC repair

Installation Notes and Tips

Confirm the vehicle is a 2019-2023 Acura RDX before ordering. Verify the refrigerant type is R1234YF and compare the existing suction line layout, connection points, and service-port configuration to the part listing. Replace the seal during installation and inspect mating surfaces for wear, contamination, or damage before reassembly.

Quality Assurance

Four Seasons states that its mobile A/C products are engineered and tested for long service life and backed by more than 50 years of HVAC experience. Part number 66937 is built to support reliable replacement of the Acura RDX suction line with the listed materials and configuration.