Four Seasons 6583N A/C Compressor Kit

Four Seasons 6583N A/C Compressor Kit

Four Seasons 6583N is a PAC-Kit with a new compressor for select 1989-1990 Chevrolet and GMC trucks. It is built for direct replacement service on R4 compressor applications and supports common HVAC repair needs on classic GM full-size pickups and chassis cabs.

Key Features

• Four Seasons PAC-Kit w/ New Compressor line
• Part number 6583N
• New compressor application for A/C compressor kit service
• Fits 1989-1990 Chevrolet C1500, C2500, C35, C3500, K1500, K2500, and K3500
• Fits 1989 GMC C1500, C2500, C3500, K1500, K2500, and K3500
• 1989 fitments note R4 compressor, 5.12-inch pulley diameter, and single-groove pulley
• 1990 fitments list PAC-Kit w/ New Compressor service components in the notes

Product Details

The Four Seasons PAC-Kit w/ New Compressor line is organized for HVAC repair work where the compressor is being replaced on compatible Chevrolet and GMC trucks. This 6583N kit is listed for 1989 and 1990 model-year applications, including Chevrolet C1500, C2500, C35, C3500, K1500, K2500, K3500 and GMC C1500, C2500, C3500, K1500, K2500, K3500. For 1989 vehicles, the fitment notes specify an R4 compressor with a 5.12-inch diameter pulley and single-groove pulley configuration.

This part cross-references common service references for the same application, including 58235 and 33133.

Common Repair Uses

• Restores A/C compressor operation on 1989-1990 Chevrolet C1500 and GMC C1500 trucks
• Addresses compressor noise, seizure, or loss of cooling output
• Supports repair of belt-driven HVAC systems with R4 compressor fitment
• Helps correct weak or inconsistent cabin air conditioning on GM trucks
• Used when replacing a failed compressor in matched truck HVAC service

Installation Notes

Verify the vehicle year, make, model, and compressor configuration before ordering. For 1989 applications, confirm the R4 compressor, 5.12-inch pulley diameter, and single-groove pulley details listed in the fitment notes. Match the existing HVAC layout to the catalog fitment for Chevrolet and GMC truck applications before installation.

Quality Assurance

Four Seasons is a recognized HVAC parts brand, and the PAC-Kit w/ New Compressor line is cataloged for direct-fit service on the listed Chevrolet and GMC truck applications. Part number 6583N is identified for the exact fitment shown above.