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Universal Air EX5900C A/C Expansion Valve - Rear
Reliable A/C Expansion Valve for Select Buick, Chevrolet, GMC, Isuzu, and Nissan Models
The Universal Air Thermal Expansion Valve EX5900C is designed to regulate refrigerant flow in your vehicle's air conditioning system. Engineered for precise performance, this A/C expansion valve is compatible with various Buick, Chevrolet, GMC, Isuzu, and Nissan models, ensuring efficient cooling and system reliability.
- Compatible with Buick Ascender, Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, and Nissan Frontier models
- Part number EX5900C for accurate identification and fitment
- Controls refrigerant flow to optimize A/C system performance
- Designed for HVAC A/C flow restrictor applications
- Manufactured by Universal Air, a trusted brand in automotive HVAC components
About the Thermal Expansion Valve Product Line
The Thermal Expansion Valve line by Universal Air focuses on precise control of refrigerant flow within automotive air conditioning systems. This product line is engineered to maintain optimal pressure and temperature balance, which is critical for efficient A/C operation. The EX5900C valve is part of this line, providing reliable performance for specific vehicle models requiring exact flow restriction.
Product Details and Compatibility
The EX5900C A/C expansion valve is specifically designed to fit a range of vehicles including the Buick Ascender, Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy series (Envoy, Envoy XL, Envoy XUV), Isuzu Ascender, and Nissan Frontier. This ensures that the valve meets the exact specifications required for these models’ HVAC systems. By regulating the refrigerant flow, it helps maintain consistent cabin temperatures and prevents system overload.
Common Applications and Issues Addressed
- Restores proper refrigerant flow in A/C systems
- Prevents overheating and freezing of the evaporator
- Eliminates inconsistent cooling performance
- Reduces compressor strain and potential failure
- Helps maintain system pressure balance for efficient operation
Installation Notes and Tips
Installation of the EX5900C should be performed by a qualified technician familiar with HVAC systems. Ensure the system is properly evacuated and recharged with the correct refrigerant type after valve replacement. Verify compatibility with the vehicle’s make and model before installation to avoid fitment issues. Proper torque specifications should be followed to prevent leaks.
Quality Assurance and Warranty
Universal Air manufactures the EX5900C expansion valve to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically come with a limited warranty against defects in materials and workmanship. For warranty information, consult the product documentation or contact the manufacturer directly.
This part fits 42 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2009 | GMC | Envoy | SLT | 4.2L | L6 | Rear | Compatible with rear A/C.; Thermal Expansion Valve |
| 2009 | GMC | Envoy | SLE | 4.2L | L6 | Rear | Compatible with rear A/C.; Thermal Expansion Valve |
| 2008 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2008 | GMC | Envoy | SLE | 4.2L | L6 | Rear | Compatible with rear A/C.; Thermal Expansion Valve |
| 2008 | GMC | Envoy | SLT | 4.2L | L6 | Rear | Compatible with rear A/C.; Thermal Expansion Valve |
| 2008 | Isuzu | Ascender | Rear | Thermal Expansion Valve | |||
| 2007 | Buick | Rainier | Rear | Thermal Expansion Valve | |||
| 2007 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2007 | GMC | Envoy | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2007 | Isuzu | Ascender | Rear | Thermal Expansion Valve | |||
| 2006 | Buick | Rainier | Rear | Thermal Expansion Valve | |||
| 2006 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2006 | Chevrolet | Trailblazer EXT | Rear | Thermal Expansion Valve | |||
| 2006 | GMC | Envoy | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2006 | GMC | Envoy XL | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2006 | Isuzu | Ascender | Rear | Thermal Expansion Valve | |||
| 2005 | Buick | Rainier | Rear | Thermal Expansion Valve | |||
| 2005 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2005 | Chevrolet | Trailblazer EXT | Rear | Thermal Expansion Valve | |||
| 2005 | GMC | Envoy | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2005 | GMC | Envoy XL | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2005 | GMC | Envoy XUV | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2005 | Isuzu | Ascender | Rear | Thermal Expansion Valve | |||
| 2004 | Buick | Rainier | Rear | Thermal Expansion Valve | |||
| 2004 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2004 | Chevrolet | Trailblazer EXT | Rear | Thermal Expansion Valve | |||
| 2004 | GMC | Envoy | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2004 | GMC | Envoy XL | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2004 | GMC | Envoy XUV | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2004 | Isuzu | Ascender | Rear | Thermal Expansion Valve | |||
| 2003 | Chevrolet | Trailblazer | Rear | Thermal Expansion Valve | |||
| 2003 | Chevrolet | Trailblazer EXT | Rear | Thermal Expansion Valve | |||
| 2003 | GMC | Envoy | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2003 | GMC | Envoy XL | Rear | Compatible with rear A/C.; Thermal Expansion Valve | |||
| 2003 | Isuzu | Ascender | Rear | Thermal Expansion Valve | |||
| 2002 | Chevrolet | Trailblazer | N/A | Thermal Expansion Valve | |||
| 2002 | Chevrolet | Trailblazer EXT | N/A | Thermal Expansion Valve | |||
| 2002 | GMC | Envoy | Rear | Thermal Expansion Valve | |||
| 2002 | GMC | Envoy XL | Rear | Thermal Expansion Valve | |||
| 2001 | Nissan | Frontier | N/A | Internally Equalized; To 07/01/2001; Thermal Expansion Valve | |||
| 1998 | Nissan | Frontier | N/A | Internally Equalized; Thermal Expansion Valve |
* 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.