Four Seasons 39705 A/C Thermostatic Expansion Valve TXV

The Four Seasons 39705 is a direct-fit replacement A/C thermostatic expansion valve (TXV) engineered for automotive air conditioning systems. The expansion valve is a critical component in the A/C refrigerant circuit, precisely metering the flow of refrigerant into the evaporator to maintain optimal system efficiency and consistent cabin cooling performance.

Key Features:

• Direct OE replacement design — engineered to meet or exceed original equipment fit, form, and function requirements
• Application-specific calibration for proper tonnage, superheat, and maximum operating pressure (MOP)
• High-quality internal components for long-lasting, reliable performance
• Includes necessary O-rings, gaskets, and seals for a complete installation
• Manufactured and validated by Four Seasons, part of the SMP Temperature Control Division

Four Seasons is the largest aftermarket mobile climate control parts supplier in the industry. Every expansion valve is tested, validated, and inspected before shipment, ensuring the quality and dependability needed for a lasting A/C repair.