Four Seasons 4543N A/C Compressor and Component Kit

Four Seasons PAC-Kit w/ New Compressor for Ram Trucks

Four Seasons 4543N is an A/C compressor kit built for select Dodge Ram applications that use the SD7H15 compressor setup. It is a PAC-Kit with a new compressor, making it a direct-fit service option for Ram 1500, Ram 2500, Ram 3500, and Ramcharger models in the listed years.

Key Features

• Brand: Four Seasons
• Part number: 4543N
• Product line: PAC-Kit w/ New Compressor
• Category: HVAC A/C clutch and compressor
• Fits vehicles equipped with SD7H15 compressor systems
• Application-specific coverage for Dodge Ram trucks and Ramcharger models

Fitment Details

• Fits 1998-2001 Dodge Ram 1500, N/A, with SD7H15 compressor; Sanden U4692, U4605 compressor; 58553 (New Compressor), 33513 (Accum), 56824 (Liq w/ Ofifice), 69991 (Flush), 59002 (Oil); PAC-Kit w/ New Compressor.
• Fits 2000-2001 Dodge Ram 2500, N/A, with SD7H15 compressor; 58553 (New Compressor), 33513 (Accum), 56824 (Liq w/ Ofifice), 69991 (Flush), 59002 (Oil); PAC-Kit w/ New Compressor.
• Fits 2000-2001 Dodge Ram 3500, N/A, with SD7H15 compressor; 58553 (New Compressor), 33513 (Accum), 56824 (Liq w/ Ofifice), 69991 (Flush), 59002 (Oil); PAC-Kit w/ New Compressor.
• Fits 1998-2001 Dodge Ram 3500, N/A, with SD7H15 compressor; Sanden U4692, U4605 compressor; 58553 (New Compressor), 33513 (Accum), 56824 (Liq w/ Ofifice), 69991 (Flush), 59002 (Oil); PAC-Kit w/ New Compressor.
• Fits 1999-2001 Dodge Ramcharger, N/A, with SD7H15 compressor; Sanden U4692, U4605 compressor; 58553 (New Compressor), 33513 (Accum), 56824 (Liq w/ Ofifice), 69991 (Flush), 59002 (Oil); PAC-Kit w/ New Compressor.
• Fits 1998-2000 Dodge Ram 2500, N/A, with SD7H15 compressor; Sanden U4692, U4605 compressor; 58553 (New Compressor), 33513 (Accum), 56824 (Liq w/ Ofifice), 69991 (Flush), 59002 (Oil); PAC-Kit w/ New Compressor.

What This A/C Compressor Kit Helps Address

• Weak or inconsistent cabin cooling in a Dodge Ram 1500, Ram 2500, Ram 3500, or Ramcharger
• Compressor noise, seizure, or loss of compressor function
• System service needs after compressor failure
• Restoration of A/C performance on SD7H15-equipped trucks

Installation Notes and Tips

Verify the existing compressor style and vehicle application before ordering. This part number is listed for SD7H15-equipped Dodge Ram applications and related Sanden compressor references, so matching the original system configuration is important for correct service. For best results, follow standard A/C service procedures, including proper evacuation, flushing, and oil management during compressor replacement.

Quality Assurance

Four Seasons 4543N is a PAC-Kit with a new compressor from a recognized HVAC parts brand. It is cataloged for specific Dodge Ram and Ramcharger fitments to support accurate replacement selection.