2003-2005 Cadillac Escalade Engine: 5.3L V8; Blend Door Actuator; Upper;. 2003-2005 Cadillac Escalade Engine: 6.0L V8; Blend Door Actuator; Upper;. HVAC Blend Door Actuator. 2007 Cadillac Escalade Engine: 6.2L V8; Blend Door Actuator; Lower or Upper; Main;.