What is Door Mirrora door mirror, also commonly known as a side mirror or wing mirror, is a device on a vehicle that allows the driver to view the area behind and to the side of the vehicle. Door mirrors are typically located on the driver's and passenger's side doors and are mounted to the exterior of the vehicle.Fitmentfor Toyotafor Tacoma 2001-2004PositionRight,Passenger SidePart Number87910-04080,TO1321160,686696217375,5290112,70037 t,TY49RHeatedNoWithout HeatItem DescriptionDoor MirrorAuto DimmingWithout Auto DimmingFoldingNon-FoldingGlass OperationNot SpecifiedMemoryWithout MemoryPowerWithout PowerProduct FinishMattePuddle LightWithout Puddle LightTurn SignalWithout Turn SignalWeight8lbsInstallationNo modification needed, easy installation, no Drilling or cutting Needed, directly on.DesignOur mirrors and mirror components are designed to match the function, fixture, and of the previous version.Function of Door Mirrorthe main function of a door mirror, also known as a side mirror or wing mirror, is to allow the driver to see the area behind and to the side of the vehicle. This helps the driver to monitor the position and movements of other vehicles while driving, changing lanes, or parking.Door mirrors are an important feature on vehicles, as they help drivers to see other vehicles and objects in their blind spots, which can reduce the likelihood of accidents. They also provide drivers with a wider field of view, which can improve situational awareness.