Four Seasons 65977 A/C Refrigerant Suction Hose

Four Seasons 65977 A/C Suction Hose

Four Seasons 65977 is an A/C refrigerant suction hose assembly built with aluminum and rubber construction for reliable refrigerant transfer. It is specified for R134A and R1234YF systems and includes the gasket or seal needed for the connection point.

Compatible with 2019-2025 Lexus ES350 suction line applications, this hose assembly is a direct-fit service part for the vehicle’s HVAC refrigerant circuit. Four Seasons hose assemblies are engineered and tested for long-term operation, drawing on more than 50 years of mobile A/C experience.

Key Features

• Part number 65977 A/C refrigerant suction hose assembly
• Aluminum / rubber construction for HVAC refrigerant routing
• For R134A and R1234YF refrigerant systems
• Gasket or seal included for the connection
• Built with muffler
• No service port included
• No switch service port and no bracket

Product Details

This Four Seasons hose assembly is made for the suction side of the air conditioning system, where refrigerant returns to the compressor. It is a practical replacement for a worn, leaking, or damaged suction line on Lexus ES350 models from 2019 through 2025. If you are searching for a Lexus ES350 A/C suction hose, Four Seasons 65977, or an OE-style HVAC hose assembly for R134A or R1234YF service, this part matches those needs.

This part cross-references UAC HA114209C for the same application.

Common Problems This Part Can Address

• Refrigerant loss from a cracked or leaking suction hose
• Softening, swelling, or deterioration of the hose material
• Noise or vibration in the A/C line where a muffler is used
• Poor A/C performance caused by restricted or damaged suction routing
• Failed sealing at the hose connection point

Installation Notes and Tips

Verify the vehicle’s refrigerant type before service and confirm the hose routing matches the original suction line layout. Replace the seal at the connection point during installation, evacuate and recharge the system to specification, and inspect for leaks after service. For 2019-2025 Lexus ES350 A/C repair work, confirm the part number 65977 against the original hose assembly before installation.

Quality Assurance

Four Seasons engineers and tests its HVAC hose assemblies for dependable operation, supported by over 50 years of mobile A/C experience. Part number 65977 is built to meet the demands of modern refrigerant systems and service conditions.