Four Seasons 2145N A/C Compressor and Component Kit

Four Seasons PAC-Kit w/ New Compressor 2145N

Four Seasons 2145N is a PAC-Kit with a new A/C compressor for select GM F-body applications using the R4 compressor platform. It is built for drivers servicing aging air conditioning systems on the Pontiac Firebird and Chevrolet Camaro, with fitment tied to specific compressor and pulley configurations.

Key Features

• Four Seasons PAC-Kit w/ New Compressor for HVAC A/C compressor replacement
• Part number 2145N for targeted lookup and ordering
• Fits select 1982-1987 Pontiac Firebird and Chevrolet Camaro applications
• Application notes reference R4 compressor configurations, pulley style, coil position, and thread type where applicable
• Includes fitment-specific service components listed by the manufacturer for the matched vehicle applications

Application Details

This Four Seasons PAC-Kit w/ New Compressor 2145N is listed for 1982-1987 Pontiac Firebird and Chevrolet Camaro models with R4 compressor setups. Fitment varies by year and configuration, including 12 o'clock coil, 5-1/2 inch pulley diameter, metric threads, and single-groove pulley notes on certain Camaro applications. Use the vehicle notes to confirm the exact compressor style before ordering.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common A/C Problems It Can Address

• Loss of cabin cooling from a worn or failed compressor
• Noisy compressor operation tied to internal wear
• Incorrect compressor match after prior A/C service
• System performance issues on R4-equipped Firebird and Camaro models
• Fitment problems caused by pulley, coil, or thread mismatch

Installation Notes

Verify the compressor style, pulley diameter, coil position, and thread configuration against the vehicle notes before installation. Inspect the system for contamination and confirm the correct application-specific components are selected for the exact Firebird or Camaro model year. Follow standard A/C service procedures, including proper evacuation, flushing where required, and oil handling per service specifications.

Quality Assurance

Four Seasons is a recognized aftermarket HVAC brand, and this PAC-Kit is cataloged for specific OE-style service applications rather than universal use. Confirm the part number 2145N and the vehicle notes before purchase to ensure the correct match.