OE Quality
60-Day Returns

Universal Air CO21685C A/C Compressor
Overview of the Universal Air UAC 10SR15H Compressor Assembly
The Universal Air UAC 10SR15H Compressor Assembly (Part Number CO21685C) is designed specifically for Cadillac CTS models. This A/C compressor is engineered to restore efficient air conditioning performance by replacing worn or faulty compressors in your vehicle's HVAC system.
- Direct replacement A/C compressor for Cadillac CTS
- Part Number CO21685C ensures precise fit and function
- Manufactured by Universal Air, a recognized brand in automotive HVAC components
- Part of the UAC 10SR15H Compressor Assembly product line
- Compatible with specific Cadillac CTS models requiring this compressor type
Details About the UAC 10SR15H Compressor Assembly Line
The UAC 10SR15H Compressor Assembly product line by Universal Air focuses on providing reliable compressor units tailored for specific vehicle applications. This line emphasizes compatibility and durability, ensuring that each compressor meets the exact specifications required for proper HVAC system operation. The CO21685C compressor included in this line is designed to integrate seamlessly with the Cadillac CTS's air conditioning system, maintaining factory performance standards.
Product Description and Application
The CO21685C A/C compressor is a critical component in the HVAC system of Cadillac CTS vehicles. It compresses refrigerant and circulates it through the air conditioning system, enabling the cooling process. Over time, compressors can fail due to wear, leaks, or mechanical issues, leading to reduced cooling efficiency or complete system failure. Installing this compressor assembly restores the air conditioning system's ability to maintain comfortable cabin temperatures.
Common Issues Addressed by This Compressor
- Loss of air conditioning cooling in Cadillac CTS
- Unusual noises from the A/C compressor area
- Refrigerant leaks or compressor clutch failure
- Intermittent or no compressor engagement
- HVAC system pressure irregularities affecting performance
Installation Notes and Tips
- Ensure compatibility with your specific Cadillac CTS model before installation
- Replace the receiver/drier and flush the A/C system to prevent contamination
- Use proper refrigerant and oil types as specified by the vehicle manufacturer
- Check for leaks and system pressure after installation
- Professional installation is recommended to maintain system integrity
Quality Assurance and Warranty
The Universal Air UAC 10SR15H Compressor Assembly (CO21685C) is manufactured to meet industry standards for quality and reliability. While specific warranty details may vary, Universal Air products typically include a limited warranty against defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer documentation prior to installation.
This part fits 33 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2014 | Cadillac | CTS | Luxury | 3.0L | V6 | GAS | N/A | UAC 10SR15H Compressor Assembly |
| 2013 | Cadillac | CTS | Base | 3.6L | V6 | FLEX | N/A | UAC 10SR15H Compressor Assembly |
| 2013 | Cadillac | CTS | Premium | 3.6L | V6 | FLEX | N/A | UAC 10SR15H Compressor Assembly |
| 2013 | Cadillac | CTS | Luxury | 3.0L | V6 | GAS | N/A | UAC 10SR15H Compressor Assembly |
| 2013 | Cadillac | CTS | Performance | 3.6L | V6 | FLEX | N/A | UAC 10SR15H Compressor Assembly |
| 2013 | Cadillac | CTS | Base | 3.0L | V6 | GAS | N/A | UAC 10SR15H Compressor Assembly |
| 2013 | Cadillac | CTS | Premium | 3.0L | V6 | GAS | N/A | UAC 10SR15H Compressor Assembly |
| 2012 | Cadillac | CTS | Base | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | Premium | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | Base | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | Performance | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | Premium | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | Luxury | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | 3.6L | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2012 | Cadillac | CTS | 3.0L | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Base | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Base | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Coupe | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Premium | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Luxury | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Performance | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2011 | Cadillac | CTS | Performance | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Premium | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Luxury | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Luxury | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Base | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Base | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Performance | 3.0L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2010 | Cadillac | CTS | Performance | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2009 | Cadillac | CTS | Base | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2009 | Cadillac | CTS | Luxury | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2009 | Cadillac | CTS | Premium | 3.6L | V6 | N/A | UAC 10SR15H Compressor Assembly | |
| 2008 | Cadillac | CTS | N/A | UAC 10SR15H Compressor Assembly |
* 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.