Four Seasons 4391N A/C Compressor Kit

Four Seasons PAC-Kit w/ New Compressor

Four Seasons 4391N is an A/C compressor kit for select Chevrolet Silverado 1500 and GMC Sierra 1500 applications. This PAC-Kit w/ New Compressor is built for vehicles using the 10S17F compressor and related service components listed in the fitment notes.

Key Features

• Four Seasons PAC-Kit w/ New Compressor for HVAC A/C compressor replacement
• Fits 2003-2007 Chevrolet Silverado 1500 and GMC Sierra 1500 applications listed below
• Application-specific notes for 10S17F compressor setups
• Includes fitment references for compressor, accumulator, orifice tube, flush, and oil service items in the notes
• Part number 4391N for easy identification

Application Details

Four Seasons 4391N is a PAC-Kit w/ New Compressor for select Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. It is listed for 2003-2007 Silverado 1500 and Sierra 1500 models, including 2007 Silverado 1500 Classic and Sierra 1500 Classic applications. The fitment notes call out 10S17F compressor configurations, with 2006 models specifying a 17mm orifice tube diameter and grey orifice tube, and 2007 models noting a drier without service port. If you are searching for a Chevrolet Silverado 1500 A/C compressor kit or a GMC Sierra 1500 HVAC compressor replacement, 4391N is the referenced part number.

This part cross-references no additional part numbers in the provided data.

Common A/C Problems It Addresses

• Failed or noisy A/C compressor operation
• Loss of cabin cooling performance
• Compressor replacement on 10S17F-equipped trucks
• Service work tied to accumulator and orifice tube specifications in the application notes
• Restoration of proper HVAC system function after compressor-related failure

Installation Notes and Tips

• Verify the compressor style and service notes against your vehicle before ordering.
• Match the listed year, make, and model exactly, including Silverado 1500 Classic and Sierra 1500 Classic applications where shown.
• Follow proper A/C service procedures, including evacuation, flushing, and oil handling as required by the vehicle system.
• Confirm the orifice tube and drier configuration noted for your specific model year.

Quality Assurance

Four Seasons is a recognized aftermarket brand in HVAC service parts, and 4391N is cataloged as a direct-fit A/C compressor kit for the listed Chevrolet Silverado 1500 and GMC Sierra 1500 applications.