Four Seasons 3663N A/C Compressor and Component Kit - Front and Rear

Four Seasons 3663N A/C Compressor Kit

The Four Seasons 3663N PAC-Kit with New Compressor is an OE-design A/C compressor kit for select Ford Explorer and Mercury Mountaineer applications. It is built for front and rear HVAC systems and is listed for vehicles using a scroll compressor configuration.

Key Features

• Four Seasons PAC-Kit w/ New Compressor for HVAC service
• OE design compressor configuration
• Fits front and rear air conditioning systems
• Application-specific for select Ford Explorer and Mercury Mountaineer models
• Part number: 3663N

Fitment Details

Compatible With 2004-2005 Ford Explorer, front and rear. Compatible With 2003 Ford Explorer, front and rear. Compatible With 2003-2005 Mercury Mountaineer, front and rear. These applications note scroll compressor use, with OE design compressor requirements and related A/C service components referenced in the fitment data.

The Four Seasons PAC-Kit line is built around application-matched A/C service parts for vehicles that require a compressor replacement along with related system components. For buyers searching for a Ford Explorer A/C compressor kit or Mercury Mountaineer compressor replacement, 3663N is listed for the specified model years and HVAC configurations.

Common A/C Problems This Part Addresses

• Loss of cabin cooling from compressor failure
• Noisy or inefficient A/C compressor operation
• Weak airflow temperature control in front and rear HVAC systems
• System performance issues after compressor wear or seizure
• Need for an OE-design replacement on listed Ford Explorer and Mercury Mountaineer applications

Installation Notes

Verify compressor style, HVAC configuration, and model-year fitment before installation. The fitment notes call out scroll compressor applications and, on the 2003 Ford Explorer listing, a right-angle style expansion valve. Follow proper A/C service procedures, including system evacuation, flushing, and oil management as required by the vehicle service manual.

Quality Assurance

Four Seasons is a recognized aftermarket brand for climate-control components, and this kit follows an OE-design approach for the listed applications. Part number 3663N is cataloged for direct fitment on the specified Ford Explorer and Mercury Mountaineer vehicles.