HVAC Blend Door Actuator. The engine types may include 3.5L 3471CC V6 GAS SOHC Naturally As pirated,3.5L 3474CC V6 GAS SOHC Naturally Aspirated,3.5L 3475CC V6 GAS SOHC Naturally Aspirated. This part fits vehicles made in t he following years 2002,2003,2004,2005,2006,2007,2008.