Four Seasons 38903 A/C Orifice Tube - Front

Reliable A/C Orifice Tube for Select GM and Dodge Vehicles

The Four Seasons 38903 A/C Orifice Tube is designed to regulate refrigerant flow in automotive air conditioning systems. This red expansion device with a 0.072-inch orifice diameter ensures precise control for efficient cooling performance in various Buick, Chevrolet, Dodge, GMC, and Jeep models.

• Brand: Four Seasons
• Brand Line: Orifice Tube
• Part Number: 38903
• Color: Red
• Orifice Diameter: 0.072 inches
• Style: Aaot
• Pack Quantity: 1
• Type: A/C Orifice Tube

About the Four Seasons Orifice Tube Product Line

The Four Seasons Orifice Tube line focuses on expansion devices that precisely meter refrigerant flow within automotive A/C systems. These orifice tubes are engineered to maintain optimal pressure and temperature balance, contributing to consistent air conditioning performance. The 38903 model is part of this line, offering compatibility with a wide range of domestic and import vehicles, including multiple GM and Dodge platforms.

Product Description and Vehicle Compatibility

This A/C orifice tube features a 0.072-inch internal diameter, which is critical for controlling refrigerant flow rate and ensuring proper system operation. The red color coding helps with easy identification during installation or maintenance. Compatible with numerous models such as the Chevrolet Silverado 1500, GMC Sierra 2500 HD, Dodge Ram 1500, Buick Park Avenue, and Jeep Grand Cherokee, this part supports reliable HVAC system function across a broad spectrum of vehicles.

Common Applications and Issues Addressed

• Regulates refrigerant flow to prevent compressor damage
• Maintains proper pressure in the A/C system
• Prevents evaporator freeze-up and inefficient cooling
• Replaces clogged or damaged orifice tubes causing poor airflow
• Supports restoration of factory A/C performance in compatible Buick, Chevrolet, Dodge, GMC, and Jeep models

Installation Notes and Tips

• Ensure system is fully evacuated and depressurized before removal
• Inspect and replace the receiver/drier or accumulator when installing a new orifice tube
• Use proper tools to avoid damage to the orifice tube or A/C lines
• Verify correct orientation and seating of the orifice tube during installation
• Consult vehicle-specific service manuals for torque specifications and procedures

Quality Assurance and Warranty

Four Seasons parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 38903 A/C Orifice Tube undergoes rigorous quality control to ensure durability and reliable performance. Warranty coverage details are provided by Four Seasons and typically include protection against defects in material and workmanship under normal use.