Four Seasons 66929 A/C Refrigerant Suction Hose

Honda and Acura Rear A/C Hose Assembly

Four Seasons 66929 is an A/C refrigerant suction hose assembly for rear air conditioning systems on select Honda and Acura vehicles. It is built with aluminum construction and female O-ring ends for a direct-service replacement in the evaporator-end refrigerant circuit.

Key Features

• Part number 66929 A/C refrigerant suction hose assembly
• Aluminum construction for HVAC refrigerant routing
• Female O-ring connections on both ends
• Designed for R134A refrigerant systems
• Service port included
• Gasket or seal included
• Four Seasons hose assembly line

Product Details

Four Seasons Hose Assembly 66929 is engineered for rear A/C applications that require a suction-side refrigerant hose with female O-ring fittings. It is listed for 1999-2004 Honda Odyssey with rear A/C, 2003-2004 Honda Pilot with rear A/C, and 2001-2002 Acura MDX at the evaporator end. This part number 66929 is built for R134A systems and includes a service port, making it a practical replacement when restoring refrigerant flow in the rear HVAC circuit.

The Four Seasons hose assembly product line focuses on HVAC service parts for mobile air conditioning systems. Four Seasons 66929 reflects that approach with application-specific construction and tested fitment for select Honda Odyssey, Honda Pilot, and Acura MDX models.

This part cross-references Honda 80321S0XA01 and 211840 for the same application.

Common Problems This Part Can Address

• Refrigerant loss from a damaged suction hose
• Cracked or leaking O-ring connections at the hose ends
• Poor rear A/C performance caused by restricted or failing hose routing
• Service port issues during HVAC diagnosis and recharge
• Replacement needs on rear A/C evaporator-end hose assemblies

Installation Notes and Tips

Verify the vehicle uses rear A/C and confirm the original hose routing before installation. Replace sealing surfaces as needed, lubricate O-rings with the correct refrigerant oil, and evacuate and recharge the system with R134A after installation. Check all connections for leaks before returning the vehicle to service.

Quality Assurance

Four Seasons states that its HVAC products are engineered and tested for long service life and backed by more than 50 years of mobile A/C experience.