OE Quality
60-Day Returns

Four Seasons 4391N A/C Compressor Kit
Reliable A/C Compressor Kit for Chevrolet and GMC Trucks
The Four Seasons PAC-Kit w/ New Compressor 4391N is designed to restore efficient air conditioning performance in Chevrolet and GMC full-size pickup trucks. This A/C compressor kit is engineered specifically for models like the Sierra 1500, Sierra 1500 Classic, Silverado 1500, and Silverado 1500 Classic, ensuring a precise fit and reliable operation.
- Complete A/C compressor kit including a new compressor
- Compatible with Chevrolet Sierra 1500 and Sierra 1500 Classic
- Fits GMC Sierra 1500 and Silverado 1500 Classic models
- Part number 4391N for accurate identification
- Designed to meet OEM specifications for HVAC systems
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 HVAC system repairs by combining a new compressor with necessary components in one kit. This approach simplifies the replacement process and helps ensure system reliability. The 4391N kit is part of this line, providing a direct-fit compressor designed to restore proper A/C function in compatible Chevrolet and GMC trucks.
Product Details and Compatibility
This A/C compressor kit is tailored for use in Chevrolet Sierra 1500 and Sierra 1500 Classic, as well as GMC Sierra 1500 and Silverado 1500 Classic models. The part number 4391N identifies this specific kit, which includes a new compressor engineered to meet the demands of these vehicles' HVAC systems. Using this kit helps maintain the integrity of your truck's air conditioning system by replacing worn or failing components with quality parts designed for your vehicle.
Common Applications and Problem Resolution
- Restores cooling performance in Chevrolet Sierra 1500 and Silverado 1500 Classic trucks
- Replaces noisy or seized A/C compressors
- Addresses refrigerant leaks caused by compressor failure
- Eliminates inconsistent or weak air conditioning output
- Prevents further HVAC system damage by installing a new compressor
Installation Notes and Tips
When installing the Four Seasons PAC-Kit w/ New Compressor 4391N, ensure the system is properly evacuated and recharged according to manufacturer specifications. Verify compatibility with your Chevrolet or GMC truck model before installation. Professional installation is recommended to maintain system integrity and performance.
Quality Assurance and Warranty
Four Seasons products are manufactured to meet or exceed OEM standards for durability and performance. The PAC-Kit w/ New Compressor 4391N undergoes quality checks to ensure reliable operation in Chevrolet and GMC Sierra and Silverado trucks. Please refer to Four Seasons' warranty policy for specific coverage details.
This part fits 21 vehicles. Search below:
| Year | Make | Model | Submodel | # Doors | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Silverado 1500 | 4 Door | 4.3L | V6 | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2007 | Chevrolet | Silverado 1500 | 2 Door | 4.3L | V6 | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2007 | Chevrolet | Silverado 1500 Classic | 4 Door | 4.3L | V6 | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2007 | Chevrolet | Silverado 1500 Classic | 2 Door | 4.3L | V6 | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2007 | GMC | Sierra 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2007 | GMC | Sierra 1500 Classic | 4.3L | V6 | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2007 | GMC | Sierra 1500 Classic | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; Drier w/o Service Port; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2006 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; Drier w/o Service Port; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2006 | Chevrolet | Silverado 1500 | LS | 4 Door | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; Drier w/o Service Port; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor |
| 2006 | Chevrolet | Silverado 1500 | LS | 2 Door | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; Drier w/o Service Port; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor |
| 2006 | Chevrolet | Silverado 1500 | WT | 4 Door | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; Drier w/o Service Port; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor |
| 2006 | Chevrolet | Silverado 1500 | WT | 2 Door | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; Drier w/o Service Port; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor |
| 2006 | GMC | Sierra 1500 | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; Drier w/o Service Port; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2005 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2005 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2005 | GMC | Sierra 1500 | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2004 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2004 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | ||
| 2004 | GMC | Sierra 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2003 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (Orifice), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor | |||
| 2003 | GMC | Sierra 1500 | 4.3L | V6 | N/A | w/ 10S17F Compressor; w/ 17mm Orifice Tube Dia.; w/ Grey Orifice Tube; 78348 (New Compressor), 83207 (Accum), 38644 (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.