Four Seasons 6485N A/C Compressor Kit

Four Seasons PAC-Kit w/ New Compressor 6485N

Four Seasons 6485N is an A/C compressor kit for select GM compact cars equipped with an R4 compressor. This PAC-Kit w/ New Compressor supports direct replacement service for Buick Skylark, Chevrolet Citation, Oldsmobile Omega, Pontiac Phoenix, and Pontiac Sunbird applications listed below.

Key Features

• Four Seasons PAC-Kit w/ New Compressor
• Part number 6485N for A/C compressor kit identification
• For vehicles using an R4 compressor
• Application-specific fitment for select 1978-1981 GM models
• Includes fitment notes for pulley diameter, switch, accumulator, orifice, flush, and oil references

Detailed Description

This Four Seasons A/C compressor kit is cataloged for select Buick Skylark, Chevrolet Citation, Oldsmobile Omega, Pontiac Phoenix, and Pontiac Sunbird vehicles with R4 compressor systems. The PAC-Kit w/ New Compressor designation identifies a compressor-focused service solution for these older HVAC applications, with fitment notes that call out the exact system details needed for proper matching. Part number 6485N is the reference to use when verifying the correct compressor kit for your vehicle.

Compatible With 1980-1981 Buick Skylark, N/A; 1981 Chevrolet Citation, N/A; 1980-1981 Oldsmobile Omega, N/A; 1980-1981 Pontiac Phoenix, N/A; 1980-1981 Pontiac Sunbird, N/A. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Is Used For

• Replacing a worn or failed A/C compressor on R4-equipped vehicles
• Restoring refrigerant compression in the HVAC system
• Addressing compressor noise or seizure conditions
• Correcting cooling loss tied to compressor wear
• Servicing original A/C systems on classic GM compact cars

Installation Notes and Tips

Verify the vehicle’s compressor type before ordering. Fitment varies by model and system details, including 5-1/2 inch pulley diameter on certain applications and switch-equipped compressor configurations on some Oldsmobile Omega listings. Confirm the exact year, make, model, and notes against the vehicle’s existing A/C setup before installation.

Quality Assurance

Four Seasons catalogs this PAC-Kit w/ New Compressor for specific OE-style service applications. Use the listed fitment notes and part number 6485N to confirm the correct match for your vehicle.