Four Seasons 6565R A/C Compressor Kit

Four Seasons 6565R PAC-Kit w/ Reman Compressor

Four Seasons 6565R is an A/C compressor kit for 1991 Chevrolet and GMC full-size trucks equipped with an R4 compressor. This PAC-Kit w/ Reman Compressor is built for direct-fit service on listed C/K applications with the specified pulley and coil configurations.

Key Features

• Brand: Four Seasons
• Brand line: PAC-Kit w/ Reman Compressor
• Part number: 6565R
• Category: HVAC A/C clutch and compressor
• Application-specific fitment for 1991 Chevrolet C1500, C2500, C35, C3500, K1500, K2500, and K3500
• Application-specific fitment for 1991 GMC C1500, C2500, C3500, K1500, K2500, and K3500
• Fits vehicles with an R4 compressor, 5.12-inch pulley diameter, and single-groove pulley
• GMC listings also note a 9 o'clock coil position

Product Details

The Four Seasons PAC-Kit line groups the compressor service components needed for a targeted HVAC repair, and 6565R is listed for 1991 Chevrolet C/K trucks and 1991 GMC C/K trucks with the specified R4 compressor setup. Use this part when servicing a truck that matches the pulley, coil, and compressor notes shown in the fitment data. Four Seasons 6565R is a fitment-specific A/C compressor kit for 1991 Chevrolet C1500 and GMC K1500 applications, along with the other listed C/K models.

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 listed 1991 Chevrolet and GMC trucks
• Restoring cooling performance when the original R4 compressor is no longer operating correctly
• Addressing compressor noise, seizure, or loss of refrigerant compression
• Repairing HVAC performance issues tied to the specified pulley and coil configuration
• Supporting a service repair on C/K trucks with the exact fitment notes shown

Installation Notes and Tips

Verify the vehicle’s compressor type before ordering. This kit is listed for R4 compressor applications with a 5.12-inch diameter pulley and single-groove pulley; GMC fitments also specify a 9 o'clock coil position. Confirm the year, make, model, and compressor configuration against the vehicle before installation, and follow standard HVAC service procedures for evacuation, flushing, and oil management.

Quality Assurance

Four Seasons is a recognized HVAC parts brand, and the PAC-Kit w/ Reman Compressor line is organized for application-specific compressor replacement. Part number 6565R is cataloged for direct fitment on the listed 1991 Chevrolet and GMC truck applications.