Four Seasons 2599R A/C Compressor and Component Kit - Front

Four Seasons PAC-Kit w/ Reman Compressor 2599R

Four Seasons 2599R is a PAC-Kit w/ reman compressor for front A/C service on select GM and Saab applications. It is built for vehicles using a TRSA12 compressor and without rear A/C, making it a direct-match option for targeted HVAC repair.

Key Features

• Four Seasons PAC-Kit w/ reman compressor for front HVAC service
• Fits vehicles with TRSA12 compressor setup and no rear A/C
• Application-specific coverage for Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x
• Part number 2599R for easy identification
• Includes fitment for front-position A/C compressor replacement

Vehicle Fitment

• Fits 2004-2009 Chevrolet Trailblazer, front, w/ TRSA12 Compressor; w/o Rear AC; 77561 (Reman Compressor), 83222 (Accum), 38638 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ Reman Compressor
• Fits 2004-2006 Chevrolet Trailblazer EXT, front, w/ TRSA12 Compressor; w/o Rear AC; 77561 (Reman Compressor), 83222 (Accum), 38638 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ Reman Compressor
• Fits 2004-2009 GMC Envoy, front, w/ TRSA12 Compressor; w/o Rear AC; 77561 (Reman Compressor), 83222 (Accum), 38638 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ Reman Compressor
• Fits 2004-2006 GMC Envoy XL, front, w/ TRSA12 Compressor; w/o Rear AC; 77561 (Reman Compressor), 83222 (Accum), 38638 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ Reman Compressor
• Fits 2004-2005 GMC Envoy XUV, front, w/ TRSA12 Compressor; w/o Rear AC; 77561 (Reman Compressor), 83222 (Accum), 38638 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ Reman Compressor
• Fits 2005-2009 Saab 9-7x, front, w/ TRSA12 Compressor; w/o Rear AC; 77561 (Reman Compressor), 83222 (Accum), 38638 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ Reman Compressor

What It Is Used For

• Replacing a worn or failed front A/C compressor on a Chevrolet Trailblazer
• Restoring cooling performance on a GMC Envoy with TRSA12 compressor setup
• Addressing compressor-related noise, seizure, or loss of refrigerant circulation
• Repairing front HVAC performance on a Saab 9-7x without rear A/C
• Supporting a complete A/C service on listed GM SUV applications

Installation Notes and Tips

Confirm the vehicle uses a TRSA12 compressor and does not have rear A/C before ordering. Match the part number 2599R to the application, and verify the front HVAC configuration on the specific Chevrolet Trailblazer, GMC Envoy, or Saab 9-7x being serviced.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with coverage focused on application-specific replacement components. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.