HVAC Recirculation Door Actuator. HVAC Actuator. 1995 GMC C2500 Engine: 4.3L V6; Air Inlet Recirculating; Blower Housing;. 1995 GMC C2500 Engine: 5.0L V8; Air Inlet Recirculating; Blower Housing;. 1995 GMC C2500 Engine: 5.7L V8; Air Inlet Recirculating; Blower Housing;.