Universal Air EX5378C A/C Orifice Tube - Front

Overview of Universal Air Black Orifice Tube EX5378C

The Universal Air Black Orifice Tube EX5378C is designed to regulate refrigerant flow in automotive A/C systems. This A/C orifice tube is compatible with a wide range of GM vehicles, including Chevrolet Silverado, GMC Sierra, and Cadillac Escalade models.

• Compatible with multiple GM makes: Buick, Cadillac, Chevrolet, GMC, Hummer, Oldsmobile, Pontiac
• Fits popular models such as Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, and more
• Part number EX5378C ensures precise identification and fitment
• Part of the Universal Air Black Orifice Tube product line for reliable A/C flow restriction
• Designed to maintain proper refrigerant flow and system pressure in automotive A/C systems

About the Black Orifice Tube Product Line

The Black Orifice Tube line by Universal Air focuses on providing consistent and accurate refrigerant flow restriction for vehicle air conditioning systems. This product line is engineered to meet OEM specifications, ensuring compatibility and performance across various GM models. The EX5378C orifice tube is part of this line, offering a dependable solution for maintaining optimal A/C system operation.

Detailed Product Description

The Universal Air EX5378C A/C orifice tube is a critical component in the HVAC system, controlling the flow of refrigerant to the evaporator. Proper flow restriction is essential for efficient cooling and system longevity. This orifice tube is compatible with a broad range of GM vehicles, including Chevrolet Avalanche 1500, GMC Sierra 3500, Cadillac DeVille, and Pontiac Grand Am, among others. Its precise design helps prevent issues such as refrigerant overcharge or undercharge, which can lead to poor cooling performance or system damage.

Common Applications and Issues Addressed

• Regulates refrigerant flow in A/C systems of Chevrolet Silverado and GMC Sierra trucks
• Prevents evaporator freezing and compressor damage in Cadillac Escalade models
• Helps resolve inconsistent cabin cooling in Buick and Pontiac vehicles
• Maintains proper system pressure in Hummer H2 and Chevrolet Blazer
• Supports efficient A/C operation in Oldsmobile and Chevrolet commercial chassis

Installation Notes and Tips

• Ensure system is fully evacuated and depressurized before removal
• Inspect the A/C line and receiver drier for contamination before installing the new orifice tube
• Use proper tools to avoid damage to the orifice tube or surrounding components
• Verify correct part number EX5378C for vehicle compatibility prior to installation
• Follow manufacturer torque specifications when securing the orifice tube

Quality Assurance and Warranty

Universal Air manufactures the EX5378C orifice tube to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo rigorous quality control to ensure reliability in automotive HVAC applications. Using the correct orifice tube helps maintain system integrity and reduces the risk of premature component failure.