Four Seasons 55700 A/C Refrigerant Suction Hose

OE Replacement A/C Suction Hose for Lexus ES300

Four Seasons 55700 is an OE replacement A/C refrigerant suction hose assembly built for low-pressure HVAC service. It uses aluminum and rubber construction with a female O-ring end, captured O-ring end, and P-nut suction fitting for a direct-style connection in the refrigerant circuit.

Compatible with 1999-2001 Lexus ES300 applications, this Four Seasons hose assembly is specified for R134-A systems and includes the required seals and fittings for the connection points listed in the catalog data. The Four Seasons hose assembly line focuses on replacement HVAC hoses and pipes for serviceable factory-style repairs.

Key Features

• Four Seasons part number 55700
• A/C refrigerant suction hose assembly for low-pressure HVAC lines
• Aluminum / rubber construction
• R134-A refrigerant type
• Female O-ring end and captured O-ring end
• P-nut suction fitting with included fittings and seals
• OE replacement design for factory-style service
• Fits 1999-2001 Lexus ES300

Detailed Description

Four Seasons 55700 is a suction line hose assembly used in the low-pressure side of the air conditioning system. It is built to match OE-style routing and connection requirements for 1999-2001 Lexus ES300 models, making it a direct-fit service part for refrigerant line repair. The aluminum and rubber construction helps combine rigidity at the connection points with flexibility where the hose must route through the engine bay. This part cross-references UAC HA111717C for the same application.

As a hose assembly for R134-A systems, Four Seasons 55700 is intended for replacing a worn, leaking, or damaged suction hose in the HVAC circuit. The cataloged end styles, included O-rings, and captured seal design support a proper connection at the factory mounting points on the vehicle.

What This Part Helps Address

• Refrigerant loss from a cracked or leaking suction hose
• Low-side A/C pressure issues caused by hose deterioration
• Damaged or corroded hose connections at the compressor-side circuit
• HVAC performance problems related to a compromised suction line
• Service replacement needs on 1999-2001 Lexus ES300 A/C systems

Installation Notes and Tips

Verify the vehicle uses an R134-A refrigerant system before installation. Inspect the mating surfaces, replace worn seals as needed, and confirm the hose routing matches the original suction line layout on the Lexus ES300. Because this is a low-pressure A/C hose assembly, proper sealing at the O-ring and captured O-ring connections is critical to system performance.

Quality Assurance

Four Seasons is a recognized aftermarket brand for HVAC hose assemblies and replacement air conditioning components. Part number 55700 is cataloged as an OE replacement suction hose assembly for the listed Lexus ES300 applications.