Four Seasons 6471R A/C Compressor Kit

Four Seasons PAC-Kit w/ Reman Compressor

The Four Seasons 6471R is an A/C compressor kit for select classic GM applications that use an A6 compressor setup. It is built for vehicles such as the Chevrolet Nova and Pontiac models listed below, with fitment details that match the original compressor configuration and pulley/thread requirements.

Key Features

• Four Seasons PAC-Kit with remanufactured compressor
• For A6 compressor applications with a 6" diameter pulley
• Single-groove pulley and standard thread configuration on listed applications
• Direct fitment for select 1976-1979 Chevrolet and Pontiac vehicles
• Part number 6471R for catalog and service reference

Fitment Details

• Fits 1977-1979 Chevrolet Nova, N/A, with A6 compressor; compressor with single groove pulley; compressor with standard threads; compressor with 6" dia. pulley; 57087 reman compressor, 33205 accum, 38623 orifice, 69991 flush, 59003 oil.
• Fits 1976 Pontiac Bonneville, N/A, with A6 compressor; with orifice tube; compressor with 6" dia. pulley; 57087 reman compressor, 33205 accum, 38623 orifice, 69991 flush, 59003 oil.
• Fits 1976 Pontiac Catalina, N/A; 57087 reman compressor, 33205 accum, 38623 orifice, 69991 flush, 59003 oil.
• Fits 1976 Pontiac Firebird, N/A, with A6 compressor; with orifice tube; compressor with 6" dia. pulley; 57087 reman compressor, 33205 accum, 38623 orifice, 69991 flush, 59003 oil.
• Fits 1976 Pontiac Grand Prix, N/A, with A6 compressor; with orifice tube; compressor with 6" dia. pulley; 57087 reman compressor, 33205 accum, 38623 orifice, 69991 flush, 59003 oil.
• Fits 1976 Pontiac Parisienne, N/A, with A6 compressor; with orifice tube; compressor with 6" dia. pulley; 57087 reman compressor, 33205 accum, 38623 orifice, 69991 flush, 59003 oil.

What It Helps Address

• Loss of A/C compressor function in listed Chevrolet Nova and Pontiac applications
• Noisy or worn compressor operation on A6-equipped systems
• Incorrect pulley or thread configuration during compressor replacement
• Service needs on older R-12-era HVAC systems with matching component requirements

Installation Notes

Verify the vehicle’s compressor style, pulley diameter, and thread configuration before ordering. This part is listed for specific A6 compressor applications, so match the original HVAC layout on the vehicle, including the notes shown for each fitment row. For best results, confirm the compressor, accumulator, orifice, flush, and oil references against the existing system before installation.

Quality Assurance

Four Seasons supplies HVAC service parts for automotive repair applications, and this PAC-Kit is cataloged under part number 6471R for the listed fitments. This part cross-references reman compressor application 57087 and accumulator application 33205 for the same vehicle coverage.