Four Seasons 55075 A/C Refrigerant Discharge / Suction Hose Assembly

OE Replacement A/C Hose Assembly

Four Seasons 55075 is an OE replacement A/C refrigerant discharge and suction hose assembly for select Nissan Quest and Mercury Villager applications. Built with aluminum and rubber construction, it is configured for R134a systems and includes the service port, manifold, and required O-rings for the listed fitments.

Fits 1999-2002 Nissan Quest and 1999-2002 Mercury Villager, with rear A/C not included in this assembly. This Four Seasons hose assembly is a direct-fit service part for restoring refrigerant flow in the front HVAC circuit.

Key Features

• Four Seasons Hose Assembly, part number 55075
• Discharge and suction line design for HVAC refrigerant routing
• Aluminum / rubber construction for OE-style fit and flexibility
• R134a refrigerant type
• Includes gasket or seal and O-rings
• Service port included with R134-A quick disconnect style
• Manifold included
• Captured O-ring discharge end with P-nut fitting
• Female O-ring suction end
• OE replacement part

Product Details

Four Seasons 55075 is engineered as a replacement hose assembly for the A/C system, combining discharge and suction line functions in one assembly. The aluminum and rubber layout supports the routing and connection points used on the listed Nissan Quest and Mercury Villager vehicles, while the included seals and service port help match the original system configuration. This part number 55075 is listed as an OE replacement and cross-references UAC HA10399C for the same application.

Common A/C Problems This Part Can Address

• Refrigerant leakage at hose connections or seals
• Damaged or deteriorated A/C hose material
• Faulty service port connection on the refrigerant line
• Loss of system pressure from worn O-rings or gasket surfaces
• Poor A/C performance caused by a compromised discharge or suction line

Installation Notes and Tips

Verify the vehicle’s refrigerant system is set up for R134a before installation. Inspect mating surfaces, replace any disturbed seals as needed, and confirm the hose routing matches the original layout on the vehicle. This assembly is listed for 1999-2002 Nissan Quest and 1999-2002 Mercury Villager, with rear A/C not included in this assembly.

Before charging the system, check all connections for proper seating and leak-free operation. Confirm the service port and switch port alignment with the existing HVAC components on the vehicle.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with OE replacement coverage across a wide range of applications. Part number 55075 is built to match the listed vehicle fitment and system configuration for the Nissan Quest and Mercury Villager.