Four Seasons 55684 A/C Refrigerant Suction Hose

OE A/C Suction Hose for Lexus LS400

Four Seasons 55684 is an OE replacement A/C refrigerant suction hose assembly for the low-pressure side of the air conditioning system. It is built with aluminum and rubber construction and uses a P-nut fitting on one end with a captured O-ring connection on the other for a direct-style service replacement.

Compatible with 1995-2000 Lexus LS400 applications, this Four Seasons hose assembly is specified for R134-A refrigerant systems and is listed as a suction line with fittings included. The Four Seasons hose assembly line focuses on replacement HVAC hose and pipe components for vehicle-specific service needs.

Key Features

• Part number 55684 A/C refrigerant suction hose assembly
• Aluminum / rubber construction for HVAC service use
• Low-pressure suction line for R134-A systems
• P-nut fitting end with captured O-ring end
• OE replacement design for Lexus LS400 A/C repair
• Gasket or seal included; fittings included
• Green O-ring seal specification: [24682] / Green O-Ring

Detailed Description

Four Seasons 55684 is an A/C refrigerant suction hose assembly engineered for the low-pressure side of the climate control system. It is a direct replacement style component for 1995-2000 Lexus LS400 models and is built to match the original hose-and-fitting layout used in R134-A refrigerant applications. The aluminum and rubber construction supports the routing and connection requirements of the suction line while maintaining the correct OE-style fitment profile.

This part cross-references UAC HA111263C for the same application. If you are replacing a leaking or damaged Lexus LS400 A/C suction hose, part number 55684 provides the correct suction line configuration with the specified end types and included seals.

What This Part Helps Fix

• Refrigerant loss from a cracked or leaking suction hose
• Low-side A/C pressure issues caused by damaged hose connections
• Loss of cooling performance from worn hose seals or O-rings
• Corrosion or deterioration at the original hose assembly
• Service failures related to an incorrect hose configuration

Installation Notes and Tips

Verify the vehicle uses an R134-A refrigerant system before installation. Confirm the suction line routing, end connections, and OE-style fitment on the 1995-2000 Lexus LS400 before removing the original part. Replace sealing surfaces as needed and inspect mating components for wear, contamination, or damage that could affect the repair.

Quality Assurance

Four Seasons is an established HVAC replacement brand, and this hose assembly is listed as an OE replacement part for the specified application. Part number 55684 is built for direct-style service use in the vehicle’s A/C suction circuit.