Four Seasons 2640R A/C Compressor Kit

Four Seasons 2640R A/C Compressor Kit

The Four Seasons PAC-Kit with Reman Compressor 2640R is built for older Chevrolet and GMC truck applications that use an R4 or LTR4 compressor setup. It brings together the core A/C service components needed for a proper compressor replacement on select 1985-1990 full-size trucks and chassis-cab models.

For buyers searching for a remanufactured A/C compressor kit for a 1987 Chevrolet R10 or a 1985-1986 GMC K1500, this kit is listed for direct application-specific fitment. The Four Seasons 2640R part number is also referenced across multiple Chevrolet and GMC heavy-duty truck configurations from the mid-1980s through 1990.

Key Features

• Four Seasons PAC-Kit w/ Reman Compressor line
• Remanufactured A/C compressor kit for select GM truck applications
• Fits vehicles equipped with R4 or LTR4 compressor configurations, depending on application
• Application notes reference matching accumulator, orifice tube, flush, and oil service parts
• Built for older Chevrolet and GMC HVAC systems in truck and commercial-duty platforms

Detailed Description

Four Seasons 2640R is an A/C compressor kit for select Chevrolet and GMC trucks, including 1985-1987 C/K models, 1987 R/V models, 1989 R2500/R3500/V3500 applications, and 1990 Chevrolet R3500 and V3500 listings. Fitment notes vary by vehicle and compressor style, including R4 compressor, LTR4 compressor, 9 o'clock coil, and 5.12-inch pulley references where specified. This makes the kit a fitment-specific solution for owners restoring or servicing factory air conditioning on older GM trucks.

This part cross-references 57235 and 33183 for the same application.

What It Is Used For

• Replacing a worn or failed A/C compressor on select Chevrolet and GMC trucks
• Restoring cooling performance in older GM HVAC systems
• Addressing compressor noise, seizure, or loss of refrigerant circulation
• Correcting A/C performance issues tied to compressor wear or internal failure
• Servicing vehicles that require an R4 or LTR4 compressor configuration

Installation Notes and Tips

Verify compressor style, pulley configuration, and coil orientation against the vehicle notes before ordering. The fitment data for 2640R includes application-specific references such as accumulator, orifice tube, flush, and oil part numbers, so matching the full service setup is important for a proper repair. Confirm the vehicle year, make, model, and compressor type before installation.

Quality Assurance

Four Seasons supplies application-specific HVAC components for automotive service, and this PAC-Kit is cataloged for confirmed GM truck fitments from 1985 through 1990.