Hubcap
![A threaded brass hubcap on a cartwheel with artillery style hub](/Images/godic/202502/20/Artillery_style_hub_with_brass_hubcap2952.jpg")
![1921 Hudson wheel with a small hubcap with automaker's logo](/Images/godic/202502/20/1921_Hudson_Phaeton_red-black_AACA_Iowa_2012_wl2952.jpg")
![](/Images/godic/202502/20/1966_Rambler_American_2-door_hardtop_custom_401_um-t2952.jpg")
![Stainless steel wheel cover](/Images/godic/202502/20/1964_Rambler_Classic_770_wagon-green_Ann-w2953.jpg")
A hubcap, wheel cover or wheel trim is a decorative disk on an automobile wheel that covers at least a central portion of the wheel, called the hub. An automobile hubcap is used to cover the wheel hub and the wheel fasteners to reduce the accumulation of dirt and moisture. It also has the function of decorating the car.