Four Seasons 66051 A/C Refrigerant Discharge / Suction Hose Assembly

OE A/C Hose Assembly for Buick, Chevrolet, and GMC

Four Seasons 66051 is an OE replacement A/C refrigerant discharge / suction hose assembly built for R134a systems. It combines aluminum and rubber construction with included O-rings and seals for a direct-fit service solution on select Buick Enclave, Chevrolet Traverse, GMC Acadia, and GMC Acadia Limited applications.

Key Features

• Part number 66051 from Four Seasons Hose Assembly line
• Aluminum / rubber construction for HVAC refrigerant routing
• Designed for R134a refrigerant systems
• Discharge and suction line assembly with manifold and muffler
• Includes gasket or seal and O-rings
• Switch port included; switch not included
• OE replacement design for factory-style fitment
• Discharge end: 0.461 in. / 11.700 mm P-nut fitting
• Suction end: 0.693 in. / 17.600 mm flange / P-nut fitting

Product Details

The Four Seasons Hose Assembly product line focuses on replacement HVAC hose assemblies that match original equipment routing and connection styles. This 66051 A/C refrigerant discharge / suction hose assembly is built with a block-style manifold suction side, a muffler, and a switch service port location, making it a practical choice for restoring refrigerant flow in the factory A/C circuit. Four Seasons 66051 is listed as an OE replacement and is cross-referenced to UAC HA111794C for the same application.

Compatible With 2013-2017 Buick Enclave, hose assembly; 2013-2017 Chevrolet Traverse, hose assembly; 2017 GMC Acadia Limited, hose assembly; and 2013-2016 GMC Acadia, hose assembly. This part number 66051 is commonly searched for Buick Enclave A/C hose assembly replacement, Chevrolet Traverse refrigerant discharge suction hose, and GMC Acadia HVAC line service.

What It Helps Address

• Refrigerant line leaks at worn hose sections or connection points
• Loss of A/C performance from damaged discharge or suction routing
• Cracked, hardened, or oil-soaked HVAC hose material
• Improper sealing at flange and P-nut style connections
• Service replacement needs for R134a air conditioning systems

Installation Notes

Verify the vehicle’s original hose routing, end styles, and port locations before installation. Replace the included O-rings and seal surfaces as needed, and evacuate and recharge the system with the correct R134a service procedure after repairs. Confirm that the switch port configuration matches the original assembly, since the switch is not included.

Quality Assurance

Four Seasons 66051 is built as an OE-style replacement HVAC hose assembly for factory-matched fitment and connection geometry. It is intended for direct replacement use on the listed Buick, Chevrolet, and GMC applications.