Four Seasons 38621 A/C Orifice Tube - Front

Reliable A/C Orifice Tube for Ford, Lincoln, Mazda, Mercury, Nissan

The Four Seasons Orifice Tube 38621 is a precision-engineered A/C flow restrictor designed to regulate refrigerant flow in automotive air conditioning systems. Compatible with a wide range of Ford, Lincoln, Mazda, Mercury, and Nissan models, this blue standard-style orifice tube ensures consistent performance and system efficiency.

• Brand: Four Seasons
• Brand Line: Orifice Tube
• Part Number: 38621
• Color: Blue
• Orifice Diameter: 0.067 inches (1.664 to 1.740 mm)
• Type: Standard A/C Orifice Tube
• Pack Quantity: 1

About the Four Seasons Orifice Tube Product Line

The Four Seasons Orifice Tube product line focuses on high-quality expansion devices that control refrigerant flow within automotive A/C systems. These orifice tubes are designed to meet OEM specifications, providing reliable pressure regulation and helping maintain optimal cooling performance. The 38621 model is part of this line, offering a standard style orifice tube suitable for various vehicle applications.

Detailed Product Description

This A/C orifice tube features a precise orifice diameter of 0.067 inches (approximately 1.664 to 1.740 mm), which is critical for controlling refrigerant flow and ensuring efficient air conditioning operation. The blue color coding helps with easy identification during installation or maintenance. The Four Seasons 38621 orifice tube is compatible with multiple Ford models such as the F-150, Explorer, Mustang, and Ranger, as well as Lincoln, Mazda, Mercury, and Nissan vehicles including the B2300, B2500, Bronco, and Quest. This part is designed as a standard style orifice tube and is sold individually.

Common Applications and Issues Addressed

• Regulates refrigerant flow in automotive A/C systems
• Prevents improper cooling due to incorrect refrigerant pressure
• Helps resolve A/C system inefficiencies and inconsistent cabin temperatures
• Replaces clogged or damaged orifice tubes causing system blockages
• Supports proper expansion and pressure drop in the evaporator

Installation Notes and Tips

• Ensure compatibility with your specific vehicle make and model before installation
• Inspect the A/C system for contamination or damage prior to replacing the orifice tube
• Use proper tools to avoid damage to the orifice tube or surrounding components
• Follow manufacturer guidelines for refrigerant handling and system evacuation
• Consider the optional part number 38902 for climates above 105°F as noted in the product footnote

Quality Assurance and Warranty

Four Seasons manufactures the 38621 orifice tube to meet stringent quality standards, ensuring durability and reliable performance in automotive HVAC systems. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in material and workmanship. Always verify warranty terms with the product documentation or supplier.