Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly P/N:66647
Keep refrigerant moving on both the high- and low-pressure sides of your A/C system with the Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly (MPN 55450). This application-specific assembly is a direct-fit replacement for the 1987-1989 Buick Century, 1987-1989 Chevrolet Celebrity, 1987-1989 Oldsmobile Cutlass Ciera, 1987-1989 Oldsmobile Cutlass Cruiser (all V6-2.8L), and the Pontiac 6000 (1987-1989 V6-2.8L; 1988-1991 V6-3.1L) — see the Buyer's Guide tab for the full list.
The assembly does not include a mounting bracket or line fittings; transfer or replace those as directed by the vehicle service procedure. Signs the original hose may need replacing include refrigerant leaks, oily residue at the crimp fittings, and reduced A/C cooling. Diagnose the source of any leak before replacing. Manufacturer part number 55450.
What does this hose assembly do?
It's a combined discharge and suction line — it carries high-pressure refrigerant from the compressor and returns low-pressure refrigerant on the suction side of the A/C system.
Which vehicles does it fit?
It's a direct-fit for the 1987-1989 Buick Century, Chevrolet Celebrity, Oldsmobile Cutlass Ciera and Cruiser (V6-2.8L), and the Pontiac 6000 (1987-1989 V6-2.8L; 1988-1991 V6-3.1L). Check the Buyer's Guide tab.
What refrigerant type is listed?
The catalog lists refrigerant type R134A, and the hose uses double-wall barrier construction.
Does it include O-rings and a muffler?
Yes — it ships with the O-rings/seals for the connections and includes an inline muffler. It does not include a mounting bracket or line fittings.
What are signs this hose may need replacing?
Refrigerant leaks, oily residue around the crimp fittings, and reduced A/C cooling can indicate a failing hose. Diagnose the source of any leak before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.