Four Seasons 3978R A/C Compressor Kit - Front and Rear

AC Compressor Kit for Escalade ESV

Four Seasons 3978R is a PAC-Kit with reman compressor for the 2006 Cadillac Escalade ESV with front and rear A/C. It is built for vehicles using a 10S20F compressor, a 17mm orifice tube diameter, and rear air conditioning service requirements.

Key Features

• Part number 3978R from Four Seasons
• PAC-Kit with reman compressor configuration
• Fits 2006 Cadillac Escalade ESV, front and rear
• For systems with 10S20F compressor specification
• For systems with 17mm orifice tube diameter
• Includes application references for rear A/C service

Product Details

This Four Seasons PAC-Kit w/ Reman Compressor is a direct-fit HVAC service part for the 2006 Cadillac Escalade ESV. The kit is specified for front and rear air conditioning systems and matches the listed compressor and orifice tube requirements for this application. Part number 3978R is the reference to use when matching the correct A/C compressor kit for this vehicle.

The Four Seasons PAC-Kit line groups the compressor with the related service components identified for the application, helping streamline A/C repair planning on the Cadillac Escalade ESV. If you are searching for a 2006 Cadillac Escalade ESV A/C compressor kit, Four Seasons 3978R is the fitment-specific part to review.

What It Is Used For

• Replacing a worn or failed A/C compressor in the 2006 Cadillac Escalade ESV
• Restoring front and rear cabin cooling performance
• Addressing compressor noise, seizure, or loss of pumping action
• Correcting A/C system performance issues tied to the specified compressor setup
• Supporting service work on systems with the listed orifice tube diameter

Installation Notes and Tips

Verify the vehicle uses a 10S20F compressor and 17mm orifice tube diameter before ordering. Confirm rear A/C configuration and compare the existing compressor identification to the application notes. Proper A/C service practices, including system evacuation, flushing where required, and correct oil handling, are important for a successful repair.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with application-specific coverage for automotive air conditioning service. Use part number 3978R to confirm the correct match for the 2006 Cadillac Escalade ESV, front and rear.