Four Seasons 55034 A/C Refrigerant Discharge / Suction Hose Assembly

Four Seasons 55034 A/C Hose Assembly

The Four Seasons 55034 hose assembly is an OE replacement A/C refrigerant discharge and suction line built for R134a systems. It combines aluminum and rubber construction with the correct manifold, captive O-ring discharge end, and block-style suction end for service on select Buick Park Avenue models.

Compatible with 2000-2002 Buick Park Avenue, this Four Seasons hose assembly is built for direct replacement of the factory refrigerant line routing. The Four Seasons Hose Assembly line focuses on application-specific HVAC hose and pipe components, and part number 55034 follows that approach with OE-style end connections and integrated seal points for the listed vehicle application.

• Part number 55034 for select Buick Park Avenue applications
• Discharge and suction line assembly for R134a air conditioning systems
• Aluminum / rubber construction for the refrigerant line path
• Manifold design with captive O-ring discharge end
• P-nut fitting at both discharge and suction ends
• Includes gasket or seal and O-rings
• Switch port included; service port not included
• OE replacement design

Detailed Application Information

This A/C refrigerant discharge / suction hose assembly is used to replace the factory line assembly that carries refrigerant between HVAC components. It is listed for 2000-2002 Buick Park Avenue models and is built with the correct end styles, seal interfaces, and switch port provision for that application. Part number 55034 is also referenced in aftermarket catalogs under related numbers for the same use.

This part cross-references Dorman - HELP 55034 for the same application.

Common Problems This Part Can Address

• Refrigerant leaks at hose connections or seal points
• Cracked, hardened, or deteriorated A/C hose material
• Loss of cooling performance from a damaged discharge or suction line
• Fault codes or service issues related to the switch port connection
• Improper sealing at the factory hose assembly interface

Installation Notes and Tips

Verify the vehicle’s refrigerant type before installation; this assembly is specified for R134a systems. Confirm the end styles, manifold layout, and switch port configuration against the original hose assembly on the vehicle before removal. Replace the sealing surfaces carefully and inspect mating components for wear, corrosion, or contamination before reassembly.

Quality Assurance

Four Seasons supplies HVAC hose and pipe components as OE replacement parts, and this assembly is built to match the listed application requirements for 2000-2002 Buick Park Avenue models. Part number 55034 is specified with included seals and O-rings for the application.