Four Seasons 73171 HVAC Heater Control Valve

The Four Seasons 73171 is a direct-fit replacement HVAC heater control valve engineered to restore proper coolant flow regulation through the heater core. As a critical component of your vehicle's heating system, the heater control valve opens and closes to meter hot engine coolant into the heater core, directly controlling cabin heat output and defrost performance.

Key Features:

• Direct OEM-replacement design for precise fit and function
• Manufactured to original equipment specifications for reliable, long-lasting performance
• Controls coolant flow to the heater core for accurate cabin temperature regulation
• Engineered and validated by Four Seasons' team with over 45 years of automotive HVAC experience
• Tested for proper operation, sealing integrity, and durability before leaving the factory
• Part of Four Seasons' comprehensive mobile climate control replacement line

Four Seasons is the largest aftermarket automotive temperature control parts supplier in the industry and a flagship brand under Standard Motor Products. The 73171 heater control valve delivers the quality and coverage professionals and DIYers rely on to get the job done right the first time.