[FUNCTION]: Replacement Air Door Actuator controls the temperature of air from AC vents and recirculation/ outside air into the interior of the vehicle,and its circuit board can resist heat, corrosion, and vibration. resists failure, overheating, and burnout.[REPLACE PART]: 604-213, YH-1743, 1L2Z19E616BA, 2L2H19E616AA, Factory OE design is made to replace the original GM models[EASY INSTALLATION]: Direct replacement for a proper fitment on driver and passenger, quick and easy to install. Don't forget to recalibrate you HVAC system after installation.Product description:100% Brand New & High QualityMeet the quality standards, 100% tested before shipment.Made of high quality plastic, anti-corrosion, wear-resistant, non-deformation.Manufacturer Part Number:604-213, YH-1743, 1L2Z19E616BA, 2L2H19E616AAFitment for:2002-2006 Ford Expedition From 3/18/022007-2017 Ford Expedition 119.0 Inch Wheelbase2002-2003 Ford Explorer 4 Door2004-2010 Ford Explorer2003-2005 Lincoln Aviator2002 Lincoln Navigator2002-2007 Lincoln Navigator From 3/18/02 To 12/06/062002-2010 Mercury MountaineerColour: BlackMaterial: PlasticPackage Contents:1 x Heater Blend Door ActuatorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.