Four Seasons 66979 A/C Suction and Liquid Line Hose Assembly

Jeep Cherokee A/C Hose Assembly

Four Seasons 66979 is an A/C suction and liquid line hose assembly built for 2019-2023 Jeep Cherokee models with R1234yf refrigerant. It combines aluminum and rubber construction with an integrated heat exchanger (IHX) style layout to support proper refrigerant flow in the HVAC system.

Four Seasons hose assemblies are engineered and tested for dependable operation, drawing on more than 50 years of mobile A/C experience. This Four Seasons 66979 replacement is a direct-fit solution for Cherokee owners servicing the air conditioning lines on R1234yf-equipped vehicles.

Key Features

• Part number: 66979
• Brand: Four Seasons Hose Assembly
• Type: suction and liquid line hose assembly
• Style: hose assembly with IHX
• Material: aluminum / rubber
• Refrigerant type: R134a and R1234yf
• End 1: P-nut fitting
• End 2: flange
• Service port included
• Switch service port included
• Gasket or seal included
• Fittings included
• Without bracket

Detailed Description

Four Seasons 66979 is an HVAC hose assembly for the A/C suction and liquid line circuit on 2019-2023 Jeep Cherokee applications with R1234yf. The aluminum and rubber construction is designed for the demands of mobile air conditioning service, while the included service port and switch service port support system service and diagnostics. This part cross-references Chrysler/Mopar OE numbers 68288354AA and 68288354AB for the same application.

Use Four Seasons 66979 when replacing a worn, leaking, or damaged A/C hose assembly on a Jeep Cherokee. The part number 66979 is also a useful reference when verifying the correct hose assembly for R1234yf-equipped Cherokee HVAC repairs.

Common Problems This Part Can Address

• Refrigerant loss from a cracked or leaking hose assembly
• Damaged suction or liquid line connections
• Faulty service port access during A/C diagnosis
• Improper sealing at hose-to-line interfaces
• Reduced A/C performance caused by line restriction or leakage

Installation Notes and Tips

Confirm the vehicle is a 2019-2023 Jeep Cherokee with R1234yf before ordering. Match the P-nut fitting and flange ends to the original hose routing, and replace the included seals during installation. After installation, evacuate and recharge the system with the correct refrigerant type and verify there are no leaks at the connections and service ports.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation, backed by more than 50 years of mobile A/C experience. Part number 66979 is built to support reliable HVAC service on Jeep Cherokee applications.