HomeFour Seasons 3908N A/C Compressor and Component Kit - Front
Part #: 3908N

Four Seasons 3908N A/C Compressor and Component Kit - Front

PAC-Kit w/ New Compressor, Front
35 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
PAC-Kit w/ New Compressor, Front
Fitment: Chevrolet, GMC, and Saab, Trailblazer, Envoy, 9-7x, Trailblazer EXT, Envoy XL, and Envoy XUV
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Reliable A/C Compressor Kit for Chevrolet, GMC, Isuzu, and Saab

The Four Seasons PAC-Kit w/ New Compressor 3908N is designed to restore efficient air conditioning performance in select Chevrolet, GMC, Isuzu, and Saab vehicles. This A/C compressor kit provides a complete solution for models such as the Chevrolet Trailblazer and GMC Envoy, ensuring proper fit and function.

  • Complete A/C compressor kit including new compressor
  • Compatible with Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, Envoy XL, Envoy XUV, Isuzu Ascender, and Saab 9-7x
  • Part number 3908N for precise identification and fitment
  • Designed to meet OEM specifications for reliable operation
  • Includes components necessary for a straightforward replacement

About the Four Seasons PAC-Kit w/ New Compressor Line

The PAC-Kit w/ New Compressor product line from Four Seasons offers a comprehensive solution for A/C system repairs by combining a new compressor with essential components in one kit. This approach simplifies installation and helps ensure compatibility with the vehicle’s HVAC system. The 3908N kit is part of this line, providing a ready-to-install compressor kit tailored for specific makes and models.

Product Details and Compatibility

This A/C compressor kit is engineered for use in Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy, Envoy XL, Envoy XUV, Isuzu Ascender, and Saab 9-7x models. The part number 3908N identifies this kit within the Four Seasons catalog, ensuring you receive the correct compressor and components for your vehicle. The kit supports the HVAC system by replacing worn or faulty compressors, restoring proper refrigerant flow and cooling efficiency.

Common Applications and Issues Addressed

  • Restores cooling performance in vehicles with failing A/C compressors
  • Eliminates compressor noise or clutch slippage
  • Resolves refrigerant leaks associated with compressor failure
  • Addresses intermittent or no A/C operation due to compressor malfunction
  • Prevents further damage to the A/C system by replacing worn components

Installation Notes and Tips

Installation of the Four Seasons 3908N PAC-Kit w/ New Compressor should be performed by a qualified technician familiar with the HVAC systems of Chevrolet, GMC, Isuzu, and Saab vehicles. Proper evacuation and recharge of the refrigerant system are necessary to ensure optimal performance. Verify compatibility with your specific model and year before installation.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed industry standards for durability and performance. The PAC-Kit w/ New Compressor 3908N undergoes quality checks to ensure reliable operation. Please refer to Four Seasons’ warranty policy for coverage details related to this A/C compressor kit.

This part fits 35 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009ChevroletTrailblazer4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2009GMCEnvoy4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2009Saab9-7x4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2008ChevroletTrailblazer4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2008GMCEnvoy4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2008IsuzuAscenderFront78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2008Saab9-7x4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2007ChevroletTrailblazer4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2007GMCEnvoy4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2007IsuzuAscenderFront78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2007Saab9-7x4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2006ChevroletTrailblazer4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2006ChevroletTrailblazer EXT4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2006GMCEnvoy4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2006GMCEnvoy XL4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2006IsuzuAscender4.2LL6Front78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2006Saab9-7x4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005ChevroletTrailblazerFrontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005ChevroletTrailblazer EXT4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005GMCEnvoy4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005GMCEnvoy XL4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005GMCEnvoy XUV4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005IsuzuAscender4.2LL6Front78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2005Saab9-7x4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2004ChevroletTrailblazerFrontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2004ChevroletTrailblazer EXT4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2004GMCEnvoyFrontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2004GMCEnvoy XL4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2004GMCEnvoy XUV4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2004IsuzuAscender4.2LL6Front78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2003ChevroletTrailblazerFrontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2003ChevroletTrailblazer EXT4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2003GMCEnvoyFrontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2003GMCEnvoy XL4.2LL6Frontw/ TRSA12 Compressor; w/ Rear AC; 78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
2003IsuzuAscender4.2LL6Front78561 (New Compressor), 83222 (Accum), 38887 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.