Four Seasons 38639 A/C Orifice Tube - Front

Overview of Four Seasons Orifice Tube 38639

The Four Seasons Orifice Tube 38639 is a precision-engineered A/C flow restrictor designed to regulate refrigerant flow in automotive air conditioning systems. This standard style orifice tube is compatible with a wide range of vehicles including Audi A4, Ford Mustang, Nissan Quest, and Volkswagen Jetta models.

• Brand: Four Seasons
• Brand Line: Orifice Tube
• Part Number: 38639
• Color: Orange
• Orifice Diameter: 0.057 inches (1.422 to 1.499 mm)
• Type: A/C Orifice Tube (Expansion Device)
• Pack Quantity: 1
• Style: Standard

Four Seasons Orifice Tube Product Line Details

The Four Seasons Orifice Tube product line focuses on reliable expansion devices that control refrigerant flow within automotive A/C systems. The 38639 orifice tube is part of this line, engineered to meet OEM specifications for consistent performance and durability. This ensures proper pressure regulation and efficient cooling in compatible vehicles.

Product Description and Specifications

The Four Seasons 38639 orifice tube features an orange color for easy identification and a precise orifice diameter of 0.057 inches (1.422 to 1.499 mm). This dimension is critical for maintaining the correct refrigerant flow rate, which directly impacts the efficiency and longevity of the vehicle’s air conditioning system. The standard style design fits a variety of makes and models, including Audi A4 Quattro, Ford Escape, Hyundai Sonata, Jaguar X-Type, Lincoln Town Car, Mazda Tribute, Mercury Grand Marquis, Nissan Quest, and Volkswagen Phaeton.

Common Applications and Issues Addressed

• Regulates refrigerant flow in automotive A/C systems
• Prevents improper cooling due to clogged or damaged orifice tubes
• Helps avoid compressor damage caused by incorrect refrigerant pressure
• Supports efficient air conditioning performance in vehicles like the Ford Mustang and Audi A6 Quattro
• Replaces worn or faulty orifice tubes to restore system functionality

Installation Notes and Tips

When installing the Four Seasons 38639 orifice tube, ensure the system is properly evacuated and free of contaminants. The orange color aids in correct placement within the A/C line. It is recommended to verify compatibility with your specific vehicle model, such as the Lincoln Continental or Nissan Quest, before installation. Use appropriate tools to avoid damage to the tube or surrounding components during replacement.

Quality Assurance and Warranty

Four Seasons manufactures the 38639 orifice tube to meet stringent quality standards, ensuring reliable performance in various automotive applications. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for durability and function. For climates above 105°F, consider the optional part number 38902 as noted in the product footnotes for enhanced performance.