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Four Seasons 66989 A/C Suction and Liquid Line Hose Assembly
| Brand | Four Seasons 66989 |
|---|---|
| Material | Aluminum / rubber |
| End 1 Type | P-nut fitting |
| End 2 Type | Flange |
| Refrigerant Type | R1234yf |
| Gasket Or Seal Included | Included |
| Switch Service Port | Yes |
| Fittings Included | Included |
| Bracket? | W/o bracket |
| Description | Hose assemblies |
| Muffler? | No |
| Service Port Included | Yes |
| Style | Hose assembly w/ ihx |
| Type | Suction & liquid line |
| Product line | Hose Assembly |
| Fits | BMW · 3 vehicles |
Hose assembly. Built with aluminum and rubber for durable HVAC line performance.
Integrated heat exchanger. Helps improve refrigerant flow efficiency in the hose assembly.
Service ports included. Includes service port and gasket or seal for easier installation.
Cross-references Continental 66989, 211900 and 64539354536 for the same application. See all 5.
BMW X3 and X4 A/C Hose Assembly
Four Seasons 66989 is an A/C suction and liquid line hose assembly built for select BMW applications using R1234yf refrigerant. It combines aluminum and rubber construction with an integrated hose assembly style and IHX, along with included seals, fittings, and service ports for the specified fitments.
Fits 2018-2019 BMW X3, N/A. Fits 2019 BMW X4, N/A. This part cross-references Continental (e.g., 66989) for the same application.
Key Features
- Part number 66989 from Four Seasons Hose Assembly line
- Type: suction and liquid line hose assembly with IHX
- Material: aluminum / rubber for HVAC routing
- End 1: P-nut fitting; End 2: flange
- For R1234yf refrigerant systems
- Service port included, with switch service port
- Gasket or seal included; fittings included
- Bracket not included
Product Details
Four Seasons 66989 is engineered for mobile A/C service on the listed BMW X3 and BMW X4 applications. The hose assembly is built with aluminum and rubber sections to route refrigerant through the HVAC system, and the integrated heat exchanger (IHX) design supports the specified suction and liquid line configuration. Four Seasons draws on more than 50 years of mobile A/C experience and tests its products for dependable operation in the field.
Common Issues This Part Addresses
- Damaged or leaking A/C hose assembly
- Cracked or worn refrigerant line connections
- Service port or seal leakage at the hose assembly
- Improper refrigerant line routing on the specified BMW models
- Loss of A/C performance caused by a compromised suction and liquid line
Installation Notes
Verify the vehicle uses R1234yf refrigerant and matches the listed BMW fitment before installation. Inspect mating surfaces, replace seals as needed with the included gasket or seal, and confirm the flange and P-nut connections are clean and properly seated. After installation, evacuate and recharge the system according to OEM service procedures and check for leaks at the service port and hose connections.
Quality Assurance
Four Seasons states that its HVAC products are engineered and tested for years of trouble-free operation. Part 66989 is backed by the brand’s long-standing mobile A/C experience and is built to meet the demands of the specified BMW X3 and BMW X4 applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | BMW | X3 | — | — | N/A | w/ R1234yf Service Port; Hose Assembly |
| 2019 | BMW | X4 | 3.0L | L6 | N/A | w/ R1234yf Service Port; Hose Assembly |
| 2018 | BMW | X3 | — | — | N/A | w/ R1234yf Service Port; Hose Assembly |
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