It is infact a capacitor. You need to figure out the uF rating and voltage rating.
The replacement part should be identical in package and as close as possible in uF rating.
Voltage of the new part can be equal or as much as 4 times higher with no issue if it fits.
The bad news is the failure ~may~ be caused by another component being bad. This means the new cap could possibly pop or otherwise the board not work correctly.