A-Premium A/C Expansion Valve Aluminum Block Type

The A-Premium A/C Expansion Valve, Aluminum Block Type, also called an A/C expansion valve or thermal expansion valve (TXV), is a key part of the air conditioning system. It meters refrigerant into the evaporator. This helps the system cool the cabin efficiently and keeps the evaporator temperature steady.

Key Features:

• Block-style design with an aluminum body that resists corrosion and is lightweight
• Regulates refrigerant flow into the evaporator to support consistent cooling performance
• Built as a replacement for a worn, stuck, or clogged expansion valve, which can cause weak cooling or uneven airflow temperatures
• Made to match the form and function of the original part for a straightforward installation

Replacing a failed expansion valve helps restore A/C performance and protects the compressor from improper refrigerant flow. When you install it, use the standard A/C service procedures. These include recovering and evacuating the system, replacing O-rings and seals, and recharging to the specified refrigerant and oil levels. Each variant in this line has its own part number.